Journal articles: 'Water quality management Thailand'

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Tanpipat, Veerachai, Royboon Rassameethes, Kobsak Wanthongchai, Prayoonyong Nhuchaiya, and Jittisak Yodcum. "Combining community management of fire and water in Thailand." Tropical Forest Issues, no. 61 (November 10, 2022): 123–30. http://dx.doi.org/10.55515/sgea2958.

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Integrating community-based fire management and community water resource management provides a useful way to prevent the ignition and spread of forest fires in Thailand. This follows the Thai expression that “where is more water there will be less fire.” More water also means more ways to generate income, which will improve community livelihoods and help sustain a community-based approach to fire and water management. This article shows that communities can be supported to develop and maintain sustainable practices that reduce the risk of wildfires while improving water availability, air quality and income, and that with additional revenue streams, they can become self-sustaining.

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Chuersuwan, Nares, Subuntith Nimrat, and Sukanda Chuersuwan. "Empowering Water Quality Management in Lamtakhong River Basin, Thailand Using WASP Model." Research Journal of Applied Sciences, Engineering and Technology 6, no. 23 (December 15, 2013): 4485–91. http://dx.doi.org/10.19026/rjaset.6.3456.

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Choo-In, Sivapan, Srisuwan Kasemsawat, Jiraporn Sriwilai, and Nutthida Kuanprasert. "The Participation of Surface Water Quality Management, Amphawa District, Samut Songkhram, Thailand." Procedia - Social and Behavioral Sciences 197 (July 2015): 1551–57. http://dx.doi.org/10.1016/j.sbspro.2015.07.109.

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Kasemsawat, Srisuwan, Sivapan Choo-in, and Tatsanawalai Utarasakul. "Wastewater Management and Community Participation in Amphawa District, Samut Songkhram Province, Thailand." Proceedings 2, no. 22 (October 31, 2018): 1387. http://dx.doi.org/10.3390/proceedings2221387.

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This research focused on wastewater management and community participation in Amphawa district, Samut Songkhram province, Thailand. Objectives of the research were (1) To investigate and assess quality of surface water and sewage at the sources before being discharged into main river and canals in Amphawa district, Samut Songkhram province. The study was conducted during October 2016–September 2017. A number of 40 surface water samples and 40 sewage samples were collected. Water quality of the samples were assessed following the Pollution Control Department procedure. The results showed that quality of surface water was likely good with pH, DO and amount of coliform bacteria under the PCD standard. BOD and amount of fecal coliform bacteria were slightly over the threshold and very high amount of NH3 was found. Sewage contained very low DO, extremely high BOD and slightly high TKN.

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Bridhikitti, Arika, Thayukorn Prabamroong, Liu Gaohuan, and Yu Guo-An. "Best management practices for mitigating agricultural nutrient pollution in the Mun River Basin, Thailand." Soil and Water Research 16, No. 2 (April 9, 2021): 121–28. http://dx.doi.org/10.17221/101/2020-swr.

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The Mun River in NE Thailand is one of the significant tributaries of the Lower Mekong River. Its poor river quality has been reported and agricultural activities were claimed to be major causes. This study aims to assess the best management measures appropriately responsive to the nutrient pollution in the Mun River Basin’s agricultural ecosystems. The data used for the analysis were acquired from field measurements during the 2018 wet season via satellite retrieval and secondary data collection. Linkages between land-soil datasets and hydro-water quality datasets were assessed through a canonical correlation analysis. The results suggest possible conservation measures with crop yield improvement and fertiliser cost reduction in the western basin. For the southern basin, which exhibits high sediment loading, integrated conservation measures for soil loss reduction with in-stream flow deceleration should be chosen. In the eastern basin, woody buffer strips and check dams should be prioritised. Both nutrient and sediment pollution were experienced in the middle part of the Mun River Basin and applications of low-P manure with mineral NK are recommended. Nonetheless, other soil-water conservation measures can be optionally applied to enhance the effectiveness in the watershed management.

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Mahujchariyawong, Jukkrit. "Modelling sustainable water quality improvement using water hyacinth and its application in Thailand." International Journal of Sustainable Development & World Ecology 8, no. 3 (September 2001): 221–31. http://dx.doi.org/10.1080/13504500109470079.

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Collivignarelli, Carlo, Prapin Tharnpoopasiam, Mentore Vaccari, Valentina De Felice, Veronica Di Bella, and Suwalee Worakhunpiset. "Evaluation of drinking water treatment and quality in Takua Pa, Thailand." Environmental Monitoring and Assessment 142, no. 1-3 (September 16, 2007): 345–58. http://dx.doi.org/10.1007/s10661-007-9934-5.

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Kajornkasirat, Siriwan, Jareeporn Ruangsri, Charuwan Sumat, and Pete Intaramontri. "Online Analytics for Shrimp Farm Management to Control Water Quality Parameters and Growth Performance." Sustainability 13, no. 11 (May 22, 2021): 5839. http://dx.doi.org/10.3390/su13115839.

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An online analytic service system was designed as a web and a mobile application for shrimp farmers and shrimp farm managers to manage the growth performance of shrimp. The MySQL database management system was used to manage the shrimp data. The Apache Web Server was used for contacting the shrimp database, and the web content displays were implemented with PHP script, JavaScript, and HTML5. Additionally, the program was linked with Google Charts to display data in various graphs, such as bar graphs and scatter diagrams, and Google Maps API was used to display water quality factors that are related to shrimp growth as spatial data. To test the system, field survey data from a shrimp farm in southern Thailand were used. Growth performance of shrimp and water quality data were collected from 13 earthen ponds in southern peninsular Thailand, located in the Surat Thani, Krabi, Phuket, and Satun provinces. The results show that the system allowed administrators to manage shrimp and farm data from the field sites. Both mobile and web applications were accessed by the users to manage the water quality factors and shrimp data. The system also provided the data analysis tool required to select a parameter from a list box and shows the association between water quality factors and shrimp data with a scatter diagram. Furthermore, the system generated a report of shrimp growth for the different farms with a line graph overlay on Google Maps™ in the data entry suite via mobile application. Online analytics for the growth performance of shrimp as provided by this system could be useful as decision support tools for effective shrimp farming.

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Vanijjirattikhan, Rangsarit, Chinoros Thongthamchart, Patsorn Rakcheep, Unpong Supakchukul, and Jittiwut Suwatthikul. "Reservoir Flood Routing Simulation for Dam Safety Management in Thailand." Journal of Disaster Research 16, no. 4 (June 1, 2021): 596–606. http://dx.doi.org/10.20965/jdr.2021.p0596.

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A reservoir flood routing simulation software with spillway operation rules that are readable and configurable by the spillway operator is developed in this study. The software is part of the Dam Safety Remote Monitoring System used by the Electricity Generating Authority of Thailand. The flood routing simulation is implemented using a storage-indication routing method, which is a hydrologic method. The spillway operation rules are exhibited in a tree-based structure, in which the spillway gate opening is derived from the current reservoir water level (RWL), spillway gate opening, and flood situation if the peak inflow has passed. The simulation results show that the simulated RWL is similar to the RWL data in the dam construction manual. This verifies the accuracy of the reservoir flood routing simulation, which is useful for planning the spillway operation.

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Mrozik, Wojciech, Soydoa Vinitnantharat, Thunchanok Thongsamer, Nipapun Pansuk, Pavinee Pattanachan, Parinda Thayanukul, Kishor Acharya, et al. "The food-water quality nexus in periurban aquacultures downstream of Bangkok, Thailand." Science of The Total Environment 695 (December 2019): 133923. http://dx.doi.org/10.1016/j.scitotenv.2019.133923.

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Liamlaem, W., L. Benjawan, and C. Polprasert. "Sustainable wastewater management technology for tourism in Thailand: case and experimental studies." Water Science and Technology 79, no. 10 (May 15, 2019): 1977–84. http://dx.doi.org/10.2166/wst.2019.200.

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Abstract Thailand has adopted the concept of eco-tourism as a protocol to protect environmental resources. One of the key factors in enabling the achievement of this goal is the improvement of the quality of effluent from those homestays and resorts which still lack efficient on-site wastewater treatment. This research utilized case studies of subsurface flow constructed wetlands (SFCWs), planted mainly with the Indian shot (Canna indica L.), which were designed to treat wastewaters at three resorts located in Amphawa District, Samut Songkram Province in central Thailand. The results showed that the treated effluent was of sufficient quality to meet the building effluent standards Type C, which require the concentrations of biological oxygen demand (BOD), total Kjeldahl nitrogen (TKN) and suspended solids (SS) to be less than 40, 40 and 50 mg/L, respectively. In addition, the first-order kinetic constants for the design and operation of SFCWs were determined. For treating wastewater containing organic substances, with no prior pre-treatment, the first-order kinetic constant of 0.24 1/d can be applied to predict effluent quality. For treating other types of domestic wastewater, a first-order kinetic constant in the range 0.40–0.45 1/d can be used when sizing and operating SFCWs. This research highlights the great potential of SFCWs as a sustainable wastewater management technology.

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Wongsupap, C., S. Weesakul, R. Clemente, and A. Das Gupta. "River basin water quality assessment and management: case study of Tha Chin River Basin, Thailand." Water International 34, no. 3 (August 14, 2009): 345–61. http://dx.doi.org/10.1080/02508060903115134.

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Gyawali, S., K. Techato, and S. Monprapusson. "Assessing the Impact of Land Use on Water Quality across Multiple Spatial Scales in U-tapao River Basin, Thailand." Journal of Institute of Science and Technology 20, no. 2 (November 26, 2015): 54–60. http://dx.doi.org/10.3126/jist.v20i2.13949.

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The study investigated the linkages between land uses and water quality in U-tapao river basin, Thailand, in order to examine the impact of land use changes on full -basin, sub-watershed and buffer zone scales (1000m, 500m and 200m) on river water quality through Geographical Information Systems (GIS) and statistical analyses. Correlation and regression analysis were applied for ten water quality parameters. In scale analysis, in the most cases, the sub-watershed scale showed the clear relationship between land use water quality rather than full-basin and buffer zone scales. This indicates that the level of relationship between land use and water quality depends upon scale therefore the relationship between water quality parameters and land uses should be studied in multiple scales and it helps to develop effective river basin management in future.Journal of Institute of Science and Technology, 2015, 20(2): 54-60

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Muttamara, Samorn, and Julito M. Baldisimo. "Strategies for Coastal Water Quality Management: A Case Study of Laem Chabang (Thailand) Deep-Sea Port Development." Water Science and Technology 20, no. 6-7 (June 1, 1988): 221–28. http://dx.doi.org/10.2166/wst.1988.0206.

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An environmental study was conducted as a part of coastal water quality management for Laem Chabang Deep-Sea Port. It was revealed that the existing seawater quality at Laem Chabang area is generally well within standards for unpolluted seawater, making it suitable for fishing and recreation. Environmental impact assessment of the different activities to be carried out in relation to the Laem Chabang port development indicated that the following significant impacts on the marine environment can be anticipated: (1) direct damage to biological organisms by resuspension of organics due to disturbance of marine habitat during dredging/reclamation and breakwater/pier construction; (2) creation of high turbidity by disposal of dredge spoil which disturbs and/or smothers marine flora and fauna and, more importantly, poses the greatest threat to the tourism industry in Pattaya located about 12 km from the project site; (3) modification of the tidal current direction and velocity in the Laem Chabang bay as a result of dredging in the entrance channel, fairway and basin; (4) deterioration of seawater quality due to discharge of tapioca powder losses, domestic wastewater from port area and sewage from ships (5) destruction of the aesthetic aspects of the port waters and surrounding areas as a consequence of solid waste generation from cargo handling from ships. A number of strategies/measures for coastal water quality management to prevent or minimize the adverse impacts have been recommended. The proposed environmental protection program is necessarily justified considering the economic benefits to be gained by the country from port operations.

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Singchai, Anurak. "The Knowledge Management of Organic Agriculture Groups in Phetchaburi Province Thailand." Journal of Asian Research 6, no. 2 (July 5, 2022): p31. http://dx.doi.org/10.22158/jar.v6n2p31.

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This article aims to study knowledge management of organic farming groups in Phetchaburi Province, and guidelines for supporting knowledge management of organic farming groups in Phetchaburi Province Thailand. The Qualitative research methodology, case study, data collection by in-depth interview were used. Participant and non-participant observations. The results of the study revealed that the knowledge management of organic farming groups in Phetchaburi Province consisted of grouping in large-scale farming groups. Establishment of a community rice center Resource utilization is planned. Water management with government agencies Management of kinship relationships and through the tradition of Mae Phosop The confidence of the group members led to knowledge management of Ban Rai Tamarind organic rice production. The Guidelines for supporting knowledge management of organic farming groups in Phetchaburi Province include: there should be a development of an organic farming database system. production support market support Information system support and support the development of product and product quality.

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Phanthuna, Nattapong, and Teerachai Lumnium. "Design and Application for a Smart Farm in Thailand Based on IoT." Applied Mechanics and Materials 866 (June 2017): 433–38. http://dx.doi.org/10.4028/www.scientific.net/amm.866.433.

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This article was studied and designed to merge the IoT (Internet of Thing) technology in an agricultural technology. The IoT technology will use the sensor and transducer technology to measure and record agricultural parameters for monitoring and controlling many orchards automatically and simultaneously. All measured data (such as ambient temperature, pressure of water supply system, water level in a clarifier, water quality for watering, and etc.) will be send via 3G into the internet network and shown on user smart phone. Therefore, any users will be able to monitor their farm status from anywhere all the time. The experimental result verifies that this proposed water management system can actually work following controller’s conditions and all data can be sent via the internet network in real time.

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Kiwfo, Kanokwan, Chonnipa Yeerum, Piyanat Issarangkura Na Ayutthaya, Kullapon Kesonkan, Siripat Suteerapataranon, Piyatida Panitsupakamol, Dujrudee Chinwong, et al. "Sustainable Education with Local-Wisdom Based Natural Reagent for Green Chemical Analysis with a Smart Device: Experiences in Thailand." Sustainability 13, no. 20 (October 9, 2021): 11147. http://dx.doi.org/10.3390/su132011147.

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To minimize chemical waste and protect the environment, our team has used green analysis with natural reagents. In this work, we designed a natural-reagent assay kit for iron determination and implemented it in chemistry education in Thailand. The iron assay method was adapted from Thai local wisdom of testing water quality using guava leaves. The guava leaf powder served as a natural reagent in the assay. The kit included equipment, standard and buffer solutions and a manual. A smart device with a built-in camera was used as a detector. Educators in six universities in Thailand implemented the kit in laboratories with modifications depending on their learning outcomes. The kit implementation was evaluated using a survey with questions in four aspects: usability, learning achievement, green chemistry and portability. The high average scores for all questions (> 4.00 of 5.00 points), with the average overall score of 4.53 ± 0.60, indicated satisfaction regarding in all aspects. Using a locally available bio-resource as a natural reagent for green analysis in chemistry education supported sustainable education in Thailand, in terms of quality education (SDG 4) and reduced inequalities (SDG 10) and environmental sustainability (SDG 6—Clean water and sanitation, 12—Responsible consumption and production and 14—Life be-low water).

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Phonphan, Walaiporn. "Application of Geo-Informatics to Estimate Agricultural Water Use in Samut Songkhram Province, Thailand." Proceedings 2, no. 22 (October 30, 2018): 1397. http://dx.doi.org/10.3390/proceedings2221397.

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Water use of human depends on daily life activities. Agriculture is the main activity of Thailand. In the present, there are the extension of agriculture, industry, residence, and community which increase water demand. It can cause a problem of water use among urban, industrial and agricultural. Most agricultural in Samut Songkhram Province, Thailand were planting crops such as pomelo, coconut and lychee, which are famous and generate a lot of income for farmers. The quality and quantity of water is an indicator for measure of the quality and yield of agricultural products. The aim of research is to estimate water use through geographic information system, and remote sensing from Landsat8 satellite. This research considers the main parameters which were; estimation of spatial rainfall runoff and quantity of evaporation, infiltration rate of the soil. To evaluate the amount of soil moisture in order to create soil moisture map for planning the utilization and management of water for agriculture. The classification land use was to investigate from Landsat8 which shown currently agricultural area. The result showed the soil moisture which distributes in each area especially the agricultural area. This information can be used by agriculturists and related organizations to plan and make the decision of growing appropriate plants according to the soil moisture for the sustainability of the agriculture.

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Boonsoong, Boonsatien, Narumon Sangpradub, Michael T. Barbour, and Wijarn Simachaya. "An implementation plan for using biological indicators to improve assessment of water quality in Thailand." Environmental Monitoring and Assessment 165, no. 1-4 (May 7, 2009): 205–15. http://dx.doi.org/10.1007/s10661-009-0939-0.

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Suttiprasit, Prasert. "Innovative Integrated Management System (IIMS) for Sustainable Food Industry." Nang Yan Business Journal 1, no. 1 (November 20, 2014): 137–42. http://dx.doi.org/10.2478/nybj-2014-0019.

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Abstract It is evident that the long-term survival and growth of global food industry depend on the availability and efficient use of raw materials, energy and water and other facilities under the concept of sustainable practice, i.e. in environment, society and economics. Quality and safety managements are essential to ensure that the industry can continue to support the communities in which it operates. Awarding a number of certifications to show the high standing of international quality and hygiene characteristics are currently necessary, e.g. ISO 9001: 2000, GMP/GHP, HACCP, ISO 22000, BRC and etc. To minimize the cost and maximize the efficiency, the Innovative Integration Management System (IIMS) has been implemented effectively under the frameworks of sustainability in a numbers of national and international food production companies in Thailand during the past years. This will allow the organization to integrate all common processes such as management review, document control, record control, training, monitoring & measuring, data analysing, internal audits, and corrective and preventive actions whereas the critical or specific processes required by each standard are still retained harmoniously with the others.

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Sangmek, Pichasit, and Charumas Meksumpun. "Assessment of impacts from various hydro-ecological factors on oxygen budgets of a regulated river: a case study of the Petchburi River, western Thailand." Water Science and Technology 69, no. 7 (February 7, 2014): 1565–72. http://dx.doi.org/10.2166/wst.2014.059.

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Investigations of dissolved oxygen (DO) levels and related water quality in the Petchburi River, a regulated river system in western Thailand, were conducted at 3-month intervals from May 2010 to February 2012. The results indicated generally good water quality with DO levels >4 mg L−1. Variations in water quality, particularly the DO and ammonium nitrogen levels along the river, occurred due to discharge regulation and the natural characteristics of the river. The processes which contribute to DO levels include natural saturation (ca 57–78% in the upper river section and ca 44–76% in the lower river section) and aquatic plant DO production (ca 20–36% in the upper river section and ca 24–50% in the lower river section) which is also significant, while re-aeration would be less effective. The DO contribution from pondweed (family Potamogetonaceae) was of interest because of its successional capacity. Future control of river quality will require suitable management of aquatic plant species for conservation purposes.

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Ingallinella, A. M., G. Sanguinetti, T. Koottatep, A. Montangero, and M. Strauss. "The challenge of faecal sludge management in urban areas - strategies, regulations and treatment options." Water Science and Technology 46, no. 10 (November 1, 2002): 285–94. http://dx.doi.org/10.2166/wst.2002.0355.

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In urban centres of industrialising countries, the majority of houses are served by on-site sanitation systems such as septic tanks and unsewered toilets. The faecal sludges (FS) collected from these systems are usually discharged untreated into the urban and peri-urban environment, posing great risks to water resources and to public health. Contrary to wastewater management, the development of strategies to cope with faecal sludges, adapted to the conditions prevailing in developing countries, have long been neglected. The authors describe the current situation and discuss selected issues of FS management. A proposal is made for a rational setting of sludge quality or treatment standards in economically emerging countries. The authors stipulate that regulatory setting should take into account local economic, institutional and technical conditions. Defining suitable treatment options as critical control points in securing adequate sludge quality is better than setting and relying on numerical sludge quality standards. A separate section is devoted to the practice and to regulatory aspects of (faecal) sludge use in Argentina. An overview of treatment options, which may prove sustainable in less industrialized countries is provided. Planted sludge drying beds are one of these options. It has been piloted in Thailand for four years and details on its performance and operation are presented along with data on the hygienic quality of treated biosolids.

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Khunkaew, Saneh, Ritin Fernandez, and Jenny Sim. "Health-Related Quality of Life and Self-Care Management Among People With Diabetic Foot Ulcers in Northern Thailand." SAGE Open Nursing 5 (January 2019): 237796081982575. http://dx.doi.org/10.1177/2377960819825751.

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Diabetic foot ulcers (DFUs) are a common complication of diabetes that impacts on the health-related quality of life (HRQOL). Foot care is an important factor in the self-care management of patients with DFUs. The objective of this study was to investigate the HRQOL and foot care management of people with DFUs. A cross-sectional study involving 41 people with DFUs was conducted at a large tertiary hospital in Northern Thailand. The Diabetic Foot Ulcer Scale-Short Form and the VA-Diabetes Foot Care Survey were used to assess the HRQOL and foot care management among people with DFUs. The majority of the participants were female ( n = 24, 58.5%), and the mean age was 62.13 years. The scores for HRQOL in the six domains were as follows: leisure (66.95 ± 28.03), physical health (68.93 ± 28.51), dependence or daily life (80.08 ± 25.23), negative emotions (71.23 ± 29.48), worried about ulcers (62.20 ± 31.97), and bothered by ulcer care (69.36 ± 25.20). High scores indicate a high (good) HRQOL. Less than a third of the participants reported that they had received education about foot care management. Almost all participants reported that they washed their feet daily; however, a large proportion did not test the water temperature or use lubricants on their feet. Most of the participants did not have a mirror for checking under their feet (48.8%), and there was a lack of knowledge about how to use a mirror for foot inspections (51.2%). This study provides guidance for clinicians on the content and delivery of diabetes education programs for people with diabetes (and DFUs) in Northern Thailand. The findings provide guidance on existing knowledge and the need for programs to address barriers to foot self-care management both in terms of skills and attitudes.

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Duangta, Kanchana, Yos Borisutdhi, and Suchint Simaraks. "Knowledge management of pomelo production system in Northeast Thailand: A case study of the pomelo farmer group in Ban Thaen district." Forest and Society 2, no. 2 (November 26, 2018): 162. http://dx.doi.org/10.24259/fs.v2i2.5122.

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In Thailand pomelo is a fruit tree that has long been grown in the central region particularly in Nakhon Chai Si district, Nakhon Pathom province where soil is relatively fertile and has conditions of sufficient water resources. In contrast, the northeast region has lower soil fertility. Most farmers grow field crops such as rice, cassava and sugarcane instead of fruit trees. However, there is one area in northeast Thailand that is famous for pomelo production in terms of quantity as well as quality for both export and local markets. This area is in Ban Thaen district, Chaiyaphum province. The research objectives of this study is to describe the context of Ban Thaen pomelo farmer group, examine different approaches and understand knowledge management processes of pomelo production. Five key informants groups were selected for the study, consisting of a group leader and group committee members identified for group discussions in order to understand the community context and factors of pomelo production of their group. A total of 17 households were selected for in-depth interviews along with participation observation among some households. Findings show that knowledge management on pomelo production in Ban Thaen is vital for their innovation and practices to increase production volume and quality. This is accomplished through knowledge sharing. Knowledge sharing is possible through existing social spaces in various forms.

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Kowsuvon, Noppadon, and Sidthinat Prabudhanitisarn. "Usable Prospects of the Environmental Quality Indicators Model for Air and Water Pollutions Management in Chiang Mai Comprehensive Plans Boundary, Thailand." PSAKU International Journal of Interdisciplinary Research 4, no. 2 (July 1, 2015): 46–54. http://dx.doi.org/10.12778/235108618x15452373185516.

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Mungsunti, Arriya, and Kevin A. Parton. "The Price of Sustainability of a Traditional Irrigation System in Northern Thailand." Sustainability 13, no. 3 (January 28, 2021): 1375. http://dx.doi.org/10.3390/su13031375.

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In recent years in northern Thailand, the traditional surface-water irrigation system known as muang fai has been challenged by the introduction of small-scale, groundwater pumping technology. This trend presents concerns about the sustainability of the system, as the new technology uses more water but produces lower-quality agricultural outputs. In this paper, we provide evidence that farmers who use relatively modern irrigation technology (ground water pumping systems) are willing to switch to a more traditional (hundreds of years old) and more sustainable surface water irrigation system. In the Sop Rong region in northern Thailand, we surveyed 570 longan farmers, approximately half being muang fai members and half using pumped groundwater. We designed an experiment for the second group to check whether they were interested in becoming muang fai members in a scenario where they have access to the canal system. We found that almost half of them were willing to pay fees to become members and that the negative relationship between membership fees and the willingness to join is robust after controlling for all other relevant factors. Despite this positive result for sustainability, suggesting that there is a price at which many farmers would be willing to switch to a more water-saving system, few farmers are making the shift. We conclude that there are strong social pressures that discourage them from doing so. Such social influences are probably an important and often overlooked determinant of efforts to achieve sustainability.

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Vaccari, Mentore, Carlo Collivignarelli, Prapin Tharnpoophasiam, and Francesco Vitali. "Wells sanitary inspection and water quality monitoring in Ban Nam Khem (Thailand) 30 months after 2004 Indian Ocean tsunami." Environmental Monitoring and Assessment 161, no. 1-4 (January 30, 2009): 123–33. http://dx.doi.org/10.1007/s10661-008-0732-5.

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Piriyapada, Sunida, and Erda Wang. "Quantifying the Costs and Benefits of Coastal Water Quality Improvements in the Ko Chang Marine National Park, Thailand." Environmental Processes 1, no. 2 (April 24, 2014): 149–69. http://dx.doi.org/10.1007/s40710-014-0013-y.

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Thaicharoen, C., A. Das Gupta, and S. Vongvisessomjai. "Implications of effluent discharge from a proposed wastewater treatment plant on coastal water quality in the upper gulf of Thailand." Water International 32, no. 4 (December 2007): 644–60. http://dx.doi.org/10.1080/02508060.2007.9709695.

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Shrestha, Sangam, Binod Bhatta, Manish Shrestha, and Pallav K. Shrestha. "Integrated assessment of the climate and landuse change impact on hydrology and water quality in the Songkhram River Basin, Thailand." Science of The Total Environment 643 (December 2018): 1610–22. http://dx.doi.org/10.1016/j.scitotenv.2018.06.306.

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Sampantamit, Tiptiwa, Long Ho, Wout Van Echelpoel, Carl Lachat, and Peter Goethals. "Links and Trade-Offs between Fisheries and Environmental Protection in Relation to the Sustainable Development Goals in Thailand." Water 12, no. 2 (February 2, 2020): 399. http://dx.doi.org/10.3390/w12020399.

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The fisheries sector significantly contributes to global food security, nutrition, and livelihood of people. Its importance for economic benefits, healthy diets, and nutrition, and achieving sustainable food systems is highlighted by several Sustainable Development Goals (SDGs), i.e., SDG 1 (No Poverty), SDG 2 (Zero Hunger), and SDG 14 (Life Below Water). However, due to unprecedented population levels, the contribution of the fisheries sector to fulfills these roles is challenging, particularly given additional concerns regarding environmental well-being and sustainability. From this perspective, this study aims to identify the links and trade-offs between the development of this sector and the environmental sustainability in Thailand via a critical analysis of their trends, current ecological impacts, and more importantly, their contributions to several individual SDGs. A time-series of Thailand’s fisheries production from 1995 to 2015 indicates a recent reduction from around 3.0 million tons in 1995 to 1.5 million tons in 2015 of wild fish and shellfish from marine and freshwater habitats. The maximum sustainable yield of these species has been exceeded. Conversely, Thailand’s aquaculture production has continued to grow over the last decade, resulting in a reduction of mangrove forest area, wild fish stocks, and water quality. While capture fisheries and aquaculture production significantly contribute to several SDG targets, there are potential trade-offs between their development and the achievement of SDGs within the planet dimension, i.e., SDG 6 (Clean Water and Sanitation), SDG 12 (Responsible Consumption and Production), SDG 13 (Climate Action), SDG 14, and SDG 15 (Life on Land). On the one hand, the mitigation of overfishing will be beneficial for the targets of SDG 14, leading to more sustainable resource management. On the other hand, it might cause a decrease in the volume of marine catches and economic and social profits. We conclude that the SDGs can serve as a framework for both policymakers and industrial workers to monitor and compromise on regulations that will optimize productivity in the context of sustainable development.

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Thaipichitburapa, P., C. Meksumpun, and S. Meksumpun. "Province-based self-remediation efficiency of the Tha Chin river basin, Thailand." Water Science and Technology 62, no. 3 (August 1, 2010): 594–602. http://dx.doi.org/10.2166/wst.2010.293.

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The Tha Chin River Basin located in the great central basin of Thailand is used for water supply, aquaculture, transportation, and recreation as well as a sink for wastewater discharges. Because of gradual deterioration of water quality and fishery resources, this study aimed to explain recent status of the river self-remediation efficiency that was influenced by nutrient inputs and outputs from the river system. Field surveys were carried out during May 2007 (early rainy season) and October 2007 (late rainy season) within the Tha Chin River located in 4 provinces; Chainat, Suphan Buri, Nakhon Pathom, and Samut Sakhon. The nutrient budgets in each province section were analyzed. Results indicated that the river was in eutrophic condition all year round. High nitrogen and phosphorus loads from surrounding agricultural land use, agro-industry, and community continuously flew into the river system. Those nutrient concentrations were higher in the early rainy season than the late rainy season. The lowest river zone (in Samut Sakhon province) indicated highest dissolved inorganic nitrogen (DIN) and orthophosphate phosphorus (P) discharges of 145.54 and 36.14 tons/day, respectively. The highest remediation efficiency of the river (ca 60% of the total input) was found in the uppermost area of Suphan Buri province. The lowest remediation efficiency (ca 12%) was found in Samut Sakhon province. From the overall view, long term monitoring of river and estuarine DIN and P should be conducted. To make better condition of aquatic environment and fishery resource in each province-based section, the controls of DIN and P remediation efficiencies (e.g. by effective management of flow speed) at 20 and 50%, respectively, were recommended.

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Visvanathan, C., and Anna Marie M. Hufemia. "Exploring zero discharge potentials for the sustainability of a bottle washing plant." Water Science and Technology 35, no. 9 (May 1, 1997): 181–90. http://dx.doi.org/10.2166/wst.1997.0342.

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The beverage industry which requires large amounts of good quality water in their processes is a major contributor to the problem of excessive pumping from existing aquifers in Thailand. In view of a government restriction on groundwater withdrawal, an overall water management plan was drawn for the sustainability of a softdrink plant in Bangkok which depends solely on a deepwell source for its water needs. Technologies that can recover water for reuse, minimize raw water input and consequently lead to zero discharge were identified. The overall water balance drawn for this plant revealed that 76% of the raw water consumed daily ends up in the biological wastewater treatment plant (WWTP). A large portion (40%) of this wastewater is generated from the bottle-washing units. By employing microfiltration for polishing of the WWTP effluent, the plant can recover process water for reuse such that, groundwater input is reduced by 40% and liquid discharged to the receiving water by 56%. There are two proposed strategies for recovering rinse water from the bottle-washing units. A microfiltration-reverse osmosis system will purify the rinse water for reuse in the bottle washing process, thereby reducing raw water consumption further to 58% and the liquid discharge by 81.5%. On the other hand, a dual filter media-ion exchange system can reduce raw water input to 57% and the liquid discharge by 80.5%.

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Bearden, Bennett L. "The legal regime of the Mekong River: a look back and some proposals for the way ahead." Water Policy 12, no. 6 (December 3, 2009): 798–821. http://dx.doi.org/10.2166/wp.2009.060.

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In 1957, the four lower Mekong River states jointly organized the development of the basin and established a legal regime that has spanned five decades of cooperation. In 1995, Cambodia, Lao PDR, Thailand and Vietnam concluded the Agreement on the Cooperation for the Sustainable Development of the Mekong River Basin and formed the Mekong River Commission, which has been lauded as the most progressive of river institutions and a model for the world. At the core of the 1995 Mekong Agreement is the concept of sustainable development. Guided by this sustainable development paradigm, the Lower Mekong River Basin states attempt to balance the maintenance of water quantity with protection of water quality, and agree to cooperate and use the Mekong's water resources in a manner in which the river system's environmental conditions and ecological balance are conserved and maintained. However, development of the Mekong and its tributaries has rendered the efficacy of the Mekong legal regime to support holistic water resources management questionable. More than ten years of experience has shown that there are aspects of the 1995 Mekong Agreement that should be strengthened in order to secure the environmental, economic and social benefits that it promises.

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Hussain, Nurda, Mukhtar Ahmed, Saowapa Duangpan, Tajamul Hussain, and Juntakan Taweekun. "Potential Impacts of Water Stress on Rice Biomass Composition and Feedstock Availability for Bioenergy Production." Sustainability 13, no. 18 (September 19, 2021): 10449. http://dx.doi.org/10.3390/su131810449.

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Bioenergy from rice biomass feedstock is considered one of the potential clean energy resources and several small biomass-based powerplants have been established in rice–growing areas of Thailand. Rice production is significantly affected by drought occurrence which results in declined biomass production and quality. The impact of water stress (WS) was evaluated on six rice cultivars for biomass quality, production and bioenergy potential. Rice cultivars were experimented on in the field under well–watered (WW) and WS conditions. Data for biomass contributing parameters were collected at harvest whereas rice biomass samples were analyzed for proximate and lignocellulosic contents. Results indicated that WS negatively influenced crop performance resulting in 11–41% declined biomass yield (BY). Stability assessment indicated that cultivars Hom Pathum and Dum Ja were stress–tolerant as they exhibited smaller reductions by 11% in their BY under WS. Statistics for proximate components indicated a significant negative impact influencing biomass quality as ash contents of Hom Chan, Dum Ja and RD-15 were increased by 4–29%. Lignocellulosic analysis indicated, an increase in lignin contents of Hom Nang Kaew, Hom Pathum, Dum Ja and RD–15 ranging 7–39%. Reduced biomass production resulted in a 10–42% reduction in bioenergy potential (E). Results proved that cultivation of stress-susceptible cultivars or farmer’s choice and occurrence of WS during crop growth will reduce biomass production, biomass feedstock availability to biomass-based powerplants and affect powerplant’s conversion efficiency resulting in declined bioenergy production.

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Tomioka, Noriko, Wilasinee Yoochatchaval, Yasuyuki Takemura, Norihisa Matsuura, Tsuyoshi Danshita, Pornpawee Srisang, Noppamas Mungjomklang, and Kazuaki Syutsubo. "Detection of potentially pathogenic Arcobacter spp. in Bangkok canals and the Chao Phraya River." Journal of Water and Health 19, no. 4 (June 21, 2021): 657–70. http://dx.doi.org/10.2166/wh.2021.239.

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Abstract The management of pathogenic bacteria in waterways is a public health issue. Here, we investigated the concentrations of potentially pathogenic bacteria, Arcobacter spp. and Campylobacter spp., and Escherichia coli, by quantifying species-specific genes in surface water samples from canals and the Chao Phraya River from June 2017 to June 2018 in Bangkok, Thailand. We assessed the relationship between the specific bacterial concentrations, water quality, and seasonal changes. Arcobacter spp. were detected at high density in all samples and showed seasonal fluctuations according to analyses based on 16S rDNA and the invasion gene ciaB. High levels of 16S rDNA and dut gene of E. coli were detected in the polluted drainage canals. A high correlation was observed between E. coli and chemical and biochemical oxygen demand (COD and BOD), suggesting that untreated domestic wastewater was the source of the E. coli. In contrast, Arcobacter spp. were detected with high density even in water samples with relatively low COD, suggesting that Arcobacter spp. are more likely than E. coli to survive in the water environment. The analysis of 16S rDNA and ciaB gene sequence analyses indicated that the Arcobacter spp. isolated from the drainage canals were A. butzleri and A. cryaerophilus.

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Meksumpun, Charumas, and Shettapong Meksumpun. "Integration of aquatic ecology and biological oceanographic knowledge for development of area-based eutrophication assessment criteria leading to water resource remediation and utilization management: a case study in Tha Chin, the most eutrophic river of Thailand." Water Science and Technology 58, no. 12 (December 1, 2008): 2303–11. http://dx.doi.org/10.2166/wst.2008.929.

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This research was carried out in Tha Chin Watershed in the central part of Thailand with attempts to apply multidisciplinary knowledge for understanding ecosystem structure and response to anthropogenic pollution and natural impacts leading to a proposal for an appropriate zonation management approach for sustainable utilization of the area. Water quality status of the Tha Chin River and Estuary had been determined by analyzing ecological, hydrological, and coastal oceanographic information from recent field surveys (during March 2006 to November 2007) together with secondary data on irrigation, land utilization, and socio-economic status.Results indicated that the Tha Chin River and Estuary was eutrophic all year round. Almost 100% of the brackish to marine areas reflected strongly hypertrophic water condition during both dry and high-loading periods. High NH4+ and PO43− loads from surrounding agricultural land use, agro-industry, and community continuously flew into the aquatic environment. Deteriorated ecosystem was clearly observed by dramatically low DO levels (ca 1 mg/l) in riverine to coastal areas and Noctiluca and Ceratium red tide outbreaks occurred around tidal front closed to the estuary. Accordingly, fishery resources were significantly decreased. Some riverine benthic habitats became dominated by deposit-feeding worms e.g. Lumbriculus, Branchiura, and Tubifex, while estuarine benthic habitats reflected succession of polychaetes and small bivalves. Results on analysis on integrated ecosystem responses indicated that changing functions were significantly influenced by particulates and nutrients dynamics in the system.Based on the overall results, the Tha Chin River and Estuary should be divided into 4 zones (I: Upper freshwater zone; II: Middle freshwater zone; III Lower freshwater zone; and IV: Lowest brackish to marine zone) for further management schemes on water remediation. In this study, the importance of habitat morphology and water flow regimes was recognized. Moreover, nearshore extensive shrimp culture ponds, irrigation canals, and surrounding mangrove habitats belonging to local households seemed to act as effective natural water treatment system that can yet provide food resources in turns. These remediation-production integrated functions should be deserved depth considerations for water quality development of the Tha Chin areas.

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MOHAMMED, ESSAM YASSIN. "MEASURING THE BENEFITS OF RIVER QUALITY IMPROVEMENT USING THE CONTINGENT VALUATION METHOD: THE CASE OF THE PING RIVER, CHIANG MAI, THAILAND." Journal of Environmental Assessment Policy and Management 11, no. 03 (September 2009): 349–67. http://dx.doi.org/10.1142/s1464333209003403.

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Rivers provide us with general life support, water supply, transportation, waste assimilation, and a wide array of recreation and tourism activities. However, due to undervaluation of the functions of rivers and river ecosystems, rivers of the world have been overexploited or degraded. To tackle the problem of undervaluation, this study measures the benefits of Ping River quality improvement using the contingent valuation method (CVM). The study estimates the lower-bound and higher-bound annual benefits gained by the residents of Chiang Mai District from the river quality improvement as 42,453,000 THB (1.25 million USD) and 102,835,317 THB (3 million USD), respectively. Moreover, in an attempt to explain the determinants of willingness to pay (WTP) statements, it was found that both behavioural and attitudinal factors affect WTP positively. The study also found distance decay, where WTP statements decreased with increased distance. And rather interestingly, male respondents tend to pay more than their female counterparts. Two other socioeconomic factors which affected WTP positively and significantly are education, partly because it can lead to a well paying and stable job, and normally raises the awareness of citizens towards environmental conservation, as well as income.

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Ritnim, Nittaya, and Charumas Meksumpun. "Influence of environmental factors on abundance and temporal variation of benthic fauna resources in the eutrophic Tha Chin estuary, Samut Sakhon province, Thailand." Water Science and Technology 64, no. 6 (September 1, 2011): 1261–69. http://dx.doi.org/10.2166/wst.2011.681.

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The influence of environmental factors on the abundance and temporal variation of benthic fauna resources was studied in the eutrophic Tha Chin estuary located in Samut Sakhon province. The objectives were to analyze the status of abundance and temporal variation of the benthic fauna and to clarify the impacts from environmental factors (water and sediment quality). Field surveys were conducted monthly from August 2007 to March 2008 at 11 sampling stations in the estuary. Based on freshwater runoff volumes, the high-, medium-, and low-loading periods were categorized to be from August to October 2007, November to December 2007, and January to March 2008, respectively. The benthic fauna resources were composed of 57 species in eight phyla. Annelids were the dominant species (with the maximum density being 19,885 individuals/m2), followed by the mollusks. Both densities decreased during the low-loading period in 2008. Water quality deteriorated during the high-loading period. Land-based wastewater discharges decreased the levels of salinity and dissolved oxygen but dramatically increased various nutrients. Consequently, the sediment quality deteriorated during the medium-loading period. Bottom deposits during this time depicted high accumulation of acid volatile sulfides (more than 0.76 mg/g dry weight). Analyzing the environmental relationships, deposit feeders (for example, Nereis sp. and Prionospio sp.) and a clam (Arcuatula sp.) showed potential as bio-indicators for environmental monitoring. The overall results revealed the importance of changes in the water and sediment qualities that had an influence on related benthic resources. The increase in the level of NH4+-N had a negative impact on the economic clam species, while the sedimentary TOM showed positive correlation (P < 0.05) with this increase. The succession of groups based on feeding behavior seemed to correspond with stress in eutrophication along the salinity gradient and in different estuarine parts. In addition, the economic clam population decreased noticeably during the medium-loading period, as a consequence of deteriorated sediment conditions. Thus, the land-based runoff should be controlled for the protection of resources. Further effective sustainable management will be enhanced by giving serious consideration to an eco-based zoning scheme for conservation and restoration of the Tha Chin estuary.

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Md. Amirul Islam, Aovijite Bosu, Md. Monjurul Hasan, Farhana Yasmin, Abu Bakker Siddique Khan, Mousumi Akhter, Md. Rahamat Ullah, Ehsanul Karim, Md. Harunor Rashid, and Yahia Mahmud. "Culture technique of seabass, Lates calcarifer in Asia: A review." International Journal of Science and Technology Research Archive 4, no. 1 (January 30, 2023): 006–17. http://dx.doi.org/10.53771/ijstra.2023.4.1.0174.

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Mariculture could be a new horizon in Bangladesh, and seabass is one of the most promising species. This paper goes into detail about seabass culture techniques and their future potential. Two culture methods have been prominent: Nursery to grow out culture and cage culture in coastal water. The study's main finding is that cannibalism occurs, resulting in mortality and failure to reach predicted growth. For seabass culture, the suitability of the site, whether for a pond or cage, is critical. The culture relies heavily on optimal water quality, particularly salinity maintenance. Proper feeding and disease management are also critical for higher production from the culture. One of the key concerns in seabass culture is the availability of live feed. Sea bass cage culture is extensively established in Malaysia, Indonesia, Thailand, Hong Kong, and Singapore. It could be a good option for culturing seabass in the coastal environment of Bangladesh although proper monitoring should be conducted. Seabass culture both in ponds or cages may contribute to our mariculture development and boost our national economy. This review will help the researchers, policymakers, entrepreneurs, and commercial culturists to introduce seabass for mariculture in the coastal regions which are salinity prone

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Doan, Thuy Thu, Phimmasone Sisouvanh, Thanyakan Sengkhrua, Supranee Sritumboon, Cornelia Rumpel, Pascal Jouquet, and Nicolas Bottinelli. "Site-Specific Effects of Organic Amendments on Parameters of Tropical Agricultural Soil and Yield: A Field Experiment in Three Countries in Southeast Asia." Agronomy 11, no. 2 (February 15, 2021): 348. http://dx.doi.org/10.3390/agronomy11020348.

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Organic amendments may improve the quality of acidic tropical agricultural soils with low organic carbon contents under conventional management (mineral fertilization and irrigation) in Southeast Asia. We investigated the effect of biochar, compost and their combination on maize growth and yield, soil physical, biological and chemical properties at harvesting time at four sites in three countries: Thailand, Vietnam and Laos. Treatments consisted of 10 t·ha−1 cow manure compost and 7 t·ha−1 of Bamboo biochar and their combination. Maize biomass production and cop yields were recorded for two seasons. Elemental content, pH and nutrient availability of soils were analyzed after the first growing season. We also characterized macrofauna abundance and water infiltration. Few changes were noted for maize biomass production and maize cop yield. Soil chemical parameters showed contrasting, site-specific results. Compost and biochar amendments increased soil organic carbon, pH, total K and N, P and K availability especially for sandy soils in Thailand. The combination of both amendments could reduce nutrient availability as compared to compost only treatments. Physical and biological parameters showed no treatment response. We conclude that the addition of compost, biochar and their mixture to tropical soils have site-specific short-term effects on chemical soil parameters. Their short-term effect on plants is thus mainly related to nutrient input. The site-dependent results despite similar crops, fertilization and irrigation practices suggest that inherent soil parameters and optimization of organic amendment application to specific pedoclimatic conditions need future attention.

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Qiao, Sha, Caihong Zhang, Lizeth Cuesta, Rafael Alvarado, Stefania Pinzón, and Diana Bravo-Benavides. "Impact of Government Stability and Investment Profile on Forest Area: The Role of Natural Protected Areas." Sustainability 14, no. 8 (April 7, 2022): 4395. http://dx.doi.org/10.3390/su14084395.

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Forest area plays a fundamental role in air and water quality and directly impacts agricultural productivity. This research aims to examine the impact of government stability and investment profiles on forest cover in countries within the ASEAN region. Specifically, the research includes Brunei Darussalam, Indonesia, Malaysia, Myanmar, the Philippines, Singapore, Thailand, and Vietnam. In the research development, we examine the role which protected natural areas play in the conservation of forests. We employ second-generation cointegration methods of cross-section dependence and slope heterogeneity. The results suggest that forest cover has been significantly reduced in this region, while government stability and the investment profile have a volatile behavior. The second-generation cointegration test results suggest there is no long-term relationship between the three series. Likewise, the short- and long-term elasticities highlight the importance of environmental protection policies to conserve forests.

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Onutai, Sujitra, Takaomi Kobayashi, Parjaree Thavorniti, and Sirithan Jiemsirilers. "Metakaolin Based Geopolymer from Thailand as an Adsorbent for Adsorption of Multi- and Mono- Cations from Aqueous Solution." Key Engineering Materials 777 (August 2018): 245–50. http://dx.doi.org/10.4028/www.scientific.net/kem.777.245.

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Waste management and water quality are two main problems nowadays. Geopolymer material has efficiency for adsorbing the ions from wastewater. In this research, the metakaolin based geopolymer was studied and used as an adsorbent to remove heavy metal ions. Moreover, the factors which affect adsorption process of heavy metals on geopolymer materials were investigated. The kaolin as used in this research was from Thailand. The metakaolin geopolymer was synthesized by mixed raw materials with an alkaline solution. The metakaolin geopolymer was washed and sieved through 100 mesh. The produced metakaolin geopolymer powder was used as an adsorbent. The XRD results showed a highly amorphous structure in obtained metakaolin geopolymer. Moreover, the BET surface area of metakaolin and geopolymer particles were 9.83 m2/g and 20.36 m2/g, respectively. The parameters of adsorbent amount, initial pH, time of shaking, temperature and initial metal ions concentration on the removal potential of geopolymer were studied. In addition, the multi-and mono-cations solution were demonstrated to compare the efficiency of each heavy metal ions. The results showed that the amount of Pb2+, Cu2+, Cd2+, and Ni2+ions adsorbed onto metakaolin geopolymer increased with an increasing contact time, pH, temperature and amount of geopolymer. It is concluded that Pb2+, Cu2+, Cd2+, and Ni2+ions in aqueous solution are efficiently removed by metakaolin geopolymer which could be applied as a low cost and good alternative for wastewater treatment.

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Gunathilake, Miyuru B., M. N. M. Zamri, Tharaka P. Alagiyawanna, Jayanga T. Samarasinghe, Pavithra K. Baddewela, Mukand S. Babel, Manoj K. Jha, and Upaka S. Rathnayake. "Hydrologic Utility of Satellite-Based and Gauge-Based Gridded Precipitation Products in the Huai Bang Sai Watershed of Northeastern Thailand." Hydrology 8, no. 4 (November 3, 2021): 165. http://dx.doi.org/10.3390/hydrology8040165.

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Accurate rainfall estimates are important in many hydrologic activities. Rainfall data are retrieved from rain gauges (RGs), satellites, radars, and re-analysis products. The accuracy of gauge-based gridded precipitation products (GbGPPs) relies on the distribution of RGs and the quality of rainfall data records obtained from these. The accuracy of satellite-based precipitation products (SbPPs) depends on many factors, including basin climatology, basin topography, precipitation mechanism, etc. The hydrologic utility of different precipitation products was examined in many developed regions; however, less focused on the developing world. The Huai Bang Sai (HBS) watershed in north-eastern Thailand is a less focused but an important catchment that significantly contributes to the water resources in Thailand. Therefore, this research presents the investigation results of the hydrologic utility of SbPPs and GbGPPs in the HBS watershed. The efficiency of nine SbPPs (including 3B42, 3B42-RT, PERSIANN, PERSIANN-CCS, PERSIANN-CDR, CHIRPS, CMORPH, IMERG, and MSWEP) and three GbGPPs (including APHRODITE_V1801, APHRODITE_V1901, and GPCC) was examined by simulating streamflow of the HBS watershed through the Soil & Water Assessment Tool (SWAT), hydrologic model. Subsequently, the streamflow simulation capacity of the hydrological model for different precipitation products was compared against observed streamflow records by using the same set of calibrated parameters used for an RG simulated scenario. The 3B42 product outperformed other SbPPS with a higher Nash–Sutcliffe Efficiency (NSEmonthly>0.55), while APHRODITE_V1901 (NSEmonthly>0.53) performed fairly well in the GbGPPs category with closer agreements with observed streamflow. In addition, the CMORPH precipitation product has not performed well in capturing observed rainfall and subsequently in simulating streamflow (NSEmonthly<0) of the HBS. Furthermore, MSWEP and CHIRPS products have performed fairly well during calibration; however, they showcased a lowered performance for validation. Therefore, the results suggest that accurate precipitation data is the major governing factor in streamflow modeling performances. The research outcomes would capture the interest of all stakeholders, including farmers, meteorologists, agriculturists, river basin managers, and hydrologists for potential applications in the tropical humid regions of the world. Moreover, 3B42 and APHRODITE_V1901 precipitation products show promising prospects for the tropical humid regions of the world for hydrologic modeling and climatological studies.

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Nantasaksiri, Kotchakarn, Patcharawat Charoen-amornkitt, Takashi Machimura, and Kiichiro Hayashi. "Multi-Disciplinary Assessment of Napier Grass Plantation on Local Energetic, Environmental and Socioeconomic Industries: A Watershed-Scale Study in Southern Thailand." Sustainability 13, no. 24 (December 7, 2021): 13520. http://dx.doi.org/10.3390/su132413520.

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Napier grass is an energy crop that is promising for future power generation. Since Napier grass has never been planted extensively, it is important to understand the impacts of Napier grass plantations on local energetic, environmental, and socioeconomic features. In this study, the soil and water assessment tool (SWAT) model was employed to investigate the impacts of Napier grass plantation on runoff, sediment, and nitrate loads in Songkhla Lake Basin (SLB), southern Thailand. Historical data, collected between 2009 and 2018 from the U-tapao gaging station located in SLB were used to calibrate and validate the model in terms of precipitation, streamflow, and sediment. The simulated precipitation, streamflow, and sediment showed agreement with observed data, with the coefficients of determination being 0.791, 0.900, and 0.997, respectively. Subsequently, the SWAT model was applied to evaluate the impact of land use change from the baseline case to Napier grass plantation cases in abandoned areas with four different nitrogen fertilizer application levels. The results revealed that planting Napier grass decreased the average surface runoff and sediment in the watershed. A multidisciplinary assessment supporting future decision making was conducted using the results obtained from the SWAT model; these showed that Napier grass will provide enhanced benefits to hydrology and water quality when nitrogen fertilizers of 0 and 125 kgN ha−1 were applied. On the other hand, the benefits to the energy supply, farmer’s income, and CO2 reduction were highest when a nitrogen fertilization of 500 kgN ha−1 was applied. Nonetheless, planting Napier grass should be supported since it increases the energy supply and creates jobs while also reducing surface runoff, sediment yield, nitrate load, and CO2 emission.

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Chowdhury, Afnan Alam, Md Shahab Uddin, Suvashis Vaumik, and Abdulla Al Asif. "Aqua drugs and chemicals used in aquaculture of Zakigonj upazilla, Sylhet." Asian Journal of Medical and Biological Research 1, no. 2 (November 23, 2015): 336–49. http://dx.doi.org/10.3329/ajmbr.v1i2.25628.

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In order to investigate present status of aqua chemicals and drugs used in various aquaculture activities in Zakigonj upazilla, Sylhet. A survey was conducted, with carp polyculture, tilapia and catfish farmers, aqua-medicine sellers, representatives of pharmaceuticals companies, from July 2014 to November 2014. Each group consisted of 25 respondents. According to the survey the most common dose of lime used by the farmers during pond preparation (62.67%) and culture period (53%) is 0.5-1 kg/40m2. Urea and TSP used by the farmers mostly during culture period with most common dose of 100-150g/40m2(37.3%) and 50-100 g/40m2 (68%) respectively. Various categories of aqua drugs and chemicals were identified that were used by fish farmers for different purposes such as water quality management, disinfectants, improve dissolve oxygen level, disease treatment, antibiotics and growth promoter. Many pharmaceutical companies were found to provide these aqua drugs and chemicals with different trade names to fulfill the farmers demand. For pond and water quality management lime, urea and TSP are mostly used. Bleaching powder, Timsen, EDTA, Polgard, Virex, Aquakleen, Germnill, Pond safe were widely used as disinfectant. Health management and disease treatment were the major activities where farmers were seen to use a lot of chemicals. A range of chemicals including antibiotics were found available in market and being used in the aquaculture sector. Commonly found traditional chemicals in heath management included Potassium permanganate, Lime, Salt, Virex, Timsen, Aquakleen, Germnil, Pond Safe, Deletrix, Spa, Albez, Ablez were used regularly for disease treatment. Mostly used antibiotics are Renamycin, Oxysentin 20% Chlorsteclin Oxy-D Vet, Aquamycin, Orgamycin 15 %, Orgacycline-15% etc. Major active ingredients of these antibiotics were oxytetracycline, chlorotetracycline, amoxicillin, doxycycline etc. There are approximately fifty two pharmaceutical companies have been recorded to market around 300 products. Most of the products have been marketed from different countries like USA, Thailand, Malaysia, Belgium and China etc. The study also indicated some problems associated with the use of such chemicals due to lack of knowledge of farmers about the use of chemicals, appropriate dose, method of application and their indiscriminate use of chemicals. The study also highlighted the names and approximate price of aquaculture chemicals available with the chemicals sellers in Zakigonj, Sylhet.Asian J. Med. Biol. Res. June 2015, 1(2): 336-349

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Polpanich, Orn-uma, Dhyey Bhatpuria, Tania Fernanda Santos Santos, and Chayanis Krittasudthacheewa. "Leveraging Multi-Source Data and Digital Technology to Support the Monitoring of Localized Water Changes in the Mekong Region." Sustainability 14, no. 3 (February 2, 2022): 1739. http://dx.doi.org/10.3390/su14031739.

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The limited availability of high-resolution monitoring systems for the drought phenomena and water dynamics affected by weather anomalies hinders policy decisions in a multitude of ways. This paper introduces the availability of the high-resolution Water Monitoring System (WMS) developed from a mix of sophisticated multi-spectral satellite imageries, analytic and data sciences, and cloud computing, for monitoring the changes in water levels and vegetation water stress at the local scale. The WMS was tested in the Lower Mekong Region (LMR) case basin, Thailand’s Chi River Basin, in the period from January 2021 to April 2021, the dry season. The overall quality of the VHI, VCI, TCI, and NDVI drought simulation results showed a statistically positive Pearson correlation with the reservoir and dam water volume data (ranged between 0.399 and 0.575) but demonstrated a strong negative correlation with the groundwater level data (between −0.355 and −0.504). Further investigation and more detailed analysis of the influence of different physical environmental conditions related to change in groundwater level should be considered to increase scientific knowledge and understanding about the changing nature of the local system from local perspectives with the alternative use of drought indices in data-poor areas. Our result suggests that the WMS can provide quantitative spatiotemporal variations of localized and contextualized surface water changes as a preliminary analysis. The WMS results can offer guidance for finding a better smaller unit management that suits the local conditions, such as water resource management, disaster risk reduction measures (i.e., drought and flood), irrigation practice, land use planning, and crop management. The existing WMS is geared toward the early warning of water and agricultural development, progress on the SDGs, utilization of digital innovation, and improved abilities of decision-makers to monitor and foresee extreme weather events earlier and with high spatial accuracy.

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Koottatep, Thammarat, Stephanie Connelly, Tatchai Pussayanavin, Sopida Khamyai, Wattanapong Sangchun, William Sloan, and Chongrak Polprasert. "‘Solar septic tank’: evaluation of innovative decentralized treatment of blackwater in developing countries." Journal of Water, Sanitation and Hygiene for Development 10, no. 4 (November 2, 2020): 828–40. http://dx.doi.org/10.2166/washdev.2020.168.

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Abstract An innovative decentralized wastewater treatment system, namely the ‘Solar Septic Tank (SST)’, was constructed and tested at the household scale in a community in central Thailand. This study aimed to investigate the long-term performance of the SST in treating blackwater subject to year-round variation. Results of the 3-year continuous operation and monitoring showed significant improvement in the SST effluent quality with the potential to minimize environmental problems and public health risks. The SST achieved significantly higher total chemical oxygen demand, soluble chemical oxygen demand, total biochemical oxygen demand (TBOD), soluble biochemical oxygen demand, total kjeldahl nitrogen, total solid and total volatile solid removal efficiencies than a conventional septic tank (CST). The average TBOD concentration of the SST effluent was 150 ± 75 mg/L, meeting the Thai discharge standard (less than 200 mg/L of TBOD), while the average TBOD concentration of the CST was 240 ± 140 mg/L, higher than the Thai discharge standard. The Escherichia coli inactivation in the SST was 1–2 log reduction more than that in the CST. The removal efficiencies of TBOD and pathogens exhibited positive correlation with the ratios of the SST temperature.

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Connelly, Stephanie, Tatchai Pussayanavin, Richard J. Randle-Boggis, Araya Wicheansan, Suparat Jampathong, Ciara Keating, Umer Z. Ijaz, Willian T. Sloan, and Thammarat Koottatep. "Solar Septic Tank: Next Generation Sequencing Reveals Effluent Microbial Community Composition as a Useful Index of System Performance." Water 11, no. 12 (December 17, 2019): 2660. http://dx.doi.org/10.3390/w11122660.

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Septic tanks are widely deployed for off-grid sewage management but are typified by poor treatment performance, discharge of polluting effluents and the requirement for frequent de-sludging. The Solar Septic Tank (SST) is a novel septic tank design that uses passive heat from the sun to raise in-tank temperatures and improves solids degradation, resulting in a cleaner effluent. Treatment has been shown to exceed conventional systems, however, the underlying biology driving treatment in the system is poorly understood. We used next generation sequencing (Illumina Miseq (San Diego, CA, USA), V4 region 16S DNA) to monitor the microbiology in the sludge and effluent of two mature systems, a conventional septic tank and an SST, during four months of routine operation in Bangkok, Thailand, and evaluated the ecology against a suite of operating and performance data collected during the same time period. Significant differences were observed between the microbiome of the sludge and effluent in each system and the dominant taxa in each appeared persistent over time. Furthermore, variation in the microbial community composition in the system effluents correlated with effluent water quality and treatment performance parameters, including the removal of chemical and biochemical oxygen demand and the concentration of fecal and total coliforms in the effluent. Thus, we propose that a wide-scale survey of the biology underlying decentralised biotechnologies for sewage treatment such as the SST could be conducted by sampling system effluent rather than sampling sludge. This is advantageous as accessing sludge during sampling is both hazardous and potentially disruptive to the anaerobic methanogenic consortia underlying treatment in the systems.

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Teniwut, Yuliana Kaneu, Marimin Marimin, and Nastiti Siswi Indrasti. "Spatial intelligent decision support system for increasing productivity on natural rubber agroindustry by green productivity approach." International Journal of Productivity and Performance Management 66, no. 6 (July 10, 2017): 742–65. http://dx.doi.org/10.1108/ijppm-01-2016-0005.

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Purpose The purpose of this paper is to develop a spatial intelligent decision support system (SIDSS) for increasing productivity in the rubber agroindustry by green productivity (GP) approach. The SIDSS was used to measure the productivity of rubber plantation and rubber agroindustry by GP approach, and select the best strategies for increasing the productivity of rubber agroindustry. Design/methodology/approach This system was developed by combining spatial analysis, GP, and fuzzy analytic network process (ANP) with the model-based management system, which is able to provide comprehensive and meaningful decision alternatives for the development of natural rubber agroindustry. Rubber plantation productivity measurement model was used to find the productivity level of rubber plantation with fuzzy logic, and also to provide information and decision alternatives to all stakeholders regarding spatial condition of rubber agroindustry, production process flow, and analysis of the seven green wastes at each production process flow using the geographic information system. GP measurement model was used to determine the productivity performance of the rubber agroindustry with the green productivity index (GPI). The best strategy for increasing the productivity was determined with fuzzy ANP. Findings Rubber plantation measurement model showed that the average of plantation productivity was 6.25 kg/ha/day. GP measurement model showed that the GPI value of ribbed smoked sheet (RSS) was 0.730, whereas of crumb rubber (CR) was 0.126. The best strategy for increasing the productivity of rubber agroindustry was raw material characteristics control. Based on the best strategy, the GPI value of RSS was 1.340, whereas of CR was 0.228. Research limitations/implications This decision support system is still limited as it is based on static data; it needs further development so that it can be more dynamically based on developments in the rubber agroindustry related levels of productivity and environmental impact. In addition, details regarding the decision to increase the productivity of the rubber section by benchmarking efforts should be studied further, both among plantation as well as among countries such as Thailand so that the productivity of rubber plantation and agroindustry can be integrated. Practical implications This research can help the planters to select superior clones for rubber trees, to improve the technique of tapping latex, and to use a better coagulant. The good quality and quantity of raw material is a key factor in increasing the productivity of rubber agroindustry; if the quality of latex is good then the resulting product will also have a good quality and production cost can be reduced. In addition, the application of GP through the calculation of GPI value using improvement scenarios can be used as a reference and comparison for evaluating the performance of rubber agroindustry to reduce the waste generated by the activities of rubber processing plant. Social implications Reduction of waste generated by production activities can improve the quality of life of the workforce and the environment. The calculation of GPI value can also be used as a basis to use raw materials, water, and electricity more efficiently. Originality/value This system was developed by combining spatial analysis, GP, and fuzzy ANP with the model-based management system, which is able to provide comprehensive and meaningful decision alternatives for the development of natural rubber agroindustry.

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Journal articles on the topic 'Water quality management Thailand'

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