Journal articles: 'Waste paper Cleaning'

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Nguyen, Son T., Jingduo Feng, Nhat T. Le, Ai T. T. Le, Nguyen Hoang, Vincent B. C. Tan, and Hai M. Duong. "Cellulose Aerogel from Paper Waste for Crude Oil Spill Cleaning." Industrial & Engineering Chemistry Research 52, no. 51 (December 11, 2013): 18386–91. http://dx.doi.org/10.1021/ie4032567.

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Si, Yifan, and Zhiguang Guo. "Bio-inspired writable multifunctional recycled paper with outer and inner uniform superhydrophobicity." RSC Advances 6, no. 37 (2016): 30776–84. http://dx.doi.org/10.1039/c6ra04259g.

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One kind of multifunctional superhydrophobic recycled paper from the secondary use of waste paper has been prepared successfully with wonderful self-cleaning, anti-fouling and oil absorption abilities.

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Mullakaev, M. S., and G. B. Veksler. "Galvanocoagulative Cleaning of Chromium-Containing Waste Water." Ecology and Industry of Russia 22, no. 8 (August 1, 2018): 8–13. http://dx.doi.org/10.18412/1816-0395-2018-8-8-13.

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The paper presents the results of laboratory and bench experiments to determine the rational modes of galvanochemical cleaning of chromiumcontaining waste water from JSC "Russian Chrome 1915". Recommendations are given on the modernization of the existing purification system of the enterprise on the basis of the developed technological scheme, which can be realized through the creation of two autonomous units: neutralization and separation. The developed technology foundations can be the basis of a new approach in dealing with a wide range of chromium-containing wastewater treatment problems.

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Lu, Qing Yi, Li Qun Chen, and Xiang Kang. "Innovative Design of a New Water-Saving Greenbelt Cleaning Device." Advanced Materials Research 823 (October 2013): 184–87. http://dx.doi.org/10.4028/www.scientific.net/amr.823.184.

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With respect to serious water waste and backward cleaning devices relevant to the cleaning of road greenbelts, this paper describes an independently-designed water-saving greenbelt cleaning device with performance of energy saving and emission reduction. After the device is developed, relevant cleaning experiments are conducted on the gardening vehicles. The results show that the new water-saving greenbelt cleaning device can improve the efficiency of water utilization significantly.

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Feofanov, Yu A. "Operational characteristics of the paper factory's biological wastewater treatment facilities." Вестник гражданских инженеров 17, no. 3 (2020): 162–67. http://dx.doi.org/10.23968/1999-5571-2020-17-3-162-167.

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The results of the biological wastewater treatment facilities of the paper factory using raw materials of different kinds (waste paper and pulp) are analyzed. The main performance characteristics of these structures (oxidative capacity for organic pollution and cleaning efficiency) at different loads on them have been determined. Recommendations have been worked out to improve the performance and efficiency of the treatment plant.

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Lemann, M. "The Waste Handling System of the Waste Disposal Department of the City of Zurich (Abfuhrwesen Zurich)." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 209, no. 3 (August 1995): 233–41. http://dx.doi.org/10.1243/pime_proc_1995_209_041_02.

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This paper outlines the system used by the authorities in Zurich to treat and recycle waste in an environmentally acceptable way. The waste incineration system produces power and incorporates a district heating system as well as a wet gas-cleaning process.

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Yasen Abd, Rasha, Ali Sachit Kaittan, and Raghad Ali Mejeed. "Implementation of a developed water tunnels cleaning model with an automatic sensing and operation mechanism." International Journal of Engineering & Technology 9, no. 3 (August 24, 2020): 718. http://dx.doi.org/10.14419/ijet.v9i3.30827.

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Iraq contains two main rivers with several sub streams and tributaries. One of the most important problems in these streams and tributaries is the amount of waste on the water surface. This waste can lead to many issues such as diseases infection and affects the fisheries. River cleaning machine is one of the most important solutions for this problem. In this paper, a developed cleaning machine was designed based on Arduino and remote sensing mechanism to reduce the operation time and cost. The proposed cleaning machine model was tested and validated and can be used efficiently in many places under different conditions.

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Md Sidek, Mufidah, Azura A. Rashid, and Baharin Azahari. "Effect of Different Thickness of Core Layer on Tensile Properties of Laminated Natural Rubber Latex Film." Advanced Materials Research 1024 (August 2014): 259–62. http://dx.doi.org/10.4028/www.scientific.net/amr.1024.259.

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Laminated natural rubber latex with cleaning agent and waste latex compound was prepared by arranging half-cured latex sheets with various thicknesses of core layer then moulding using hot press according to the Rheometer graph. Laminated layers consist of outer layer (natural rubber latex films with cleaning agent) and core layer (waste natural rubber latex film). The core layer and outer layer are prepared through casting method with different thickness. For core layer, three different thickness of film is cast and for outer layer the thickness is control. The aim of this paper is to study the effect of different thickness of core layer and the different molding temperature on tensile and swelling properties of laminated films. The tensile test was carried out to acquire good interfacial adhesion between the laminates films. The fractured surface morphologies were carried out using digital microscope (Dino-Lite) to understand the interfacial interaction between core and outer layer of the films. The use of NRL lamination films with NRL waste will contribute to novel materials for as mould cleaning product with green and easier cleaning compare to conventional cleaning process.

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Gabbar, Hossam A., Davide Lisi, Mohamed Aboughaly, Vahid Damideh, and Isaac Hassen. "Modeling of a Plasma-Based Waste Gasification System for Solid Waste Generated Onboard of Typical Cruiser Vessels Used as a Feedstock." Designs 4, no. 3 (September 8, 2020): 33. http://dx.doi.org/10.3390/designs4030033.

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In this paper, a model for a single stage plasma gasification system for marine vessels characterized by significant waste production is proposed. The main objective of the model is to investigate the effects of different feedstock compositions on key parameters, such as electrical power produced and heat recovered. The different types of waste generated onboard are described along with their environmental impacts. Specific attention is given to solid wastes, sewage sludge and plastic wastes as potential feedstock. Their average generation, proximate and ultimate analysis are defined, as input to the process model. The process assumptions used in the simulation model are illustrated. The system model is divided into five units: the pre-treatment unit; the gasification unit; the syngas cleaning unit; the energy conversion unit; and the heat recovery unit. Four operational scenarios are investigated to consider several variations of composition of the main feedstock. From the results of the simulations, the system model shows good feedstock flexibility, and the possibility of operating in net electricity gain conditions. The cold gas efficiency of the process is also assessed and its maximum value is obtained for the highest concentrations of sewage sludge (33.3%) and plastic (16.7%). Other parameters investigated are the combustion temperature, sorbent consumption in the cleaning process, feedstock and syngas lower heating value LHV.

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Patel, Yuvraj, Deepanshu Pandita, Ashwin Nair, Nikhil Mathapati, and Mimi Cherian. "IoT Based Bot for Flood Water Cleaning and Treatment." International Journal for Research in Applied Science and Engineering Technology 10, no. 4 (April 30, 2022): 2063–67. http://dx.doi.org/10.22214/ijraset.2022.41703.

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Abstract: This survey paper is an attempt to construct a bot that can clean and treat flood water. During floods, water becomes contaminated with waste because the use of plastic and other harmful materials is increasing uncontrollably in many floodaffected areas. Toxins from these elements disrupt the ecosystem and endanger human health, leading to cancer, congenital malformations, and immune system problems. Water scarcity is a severe concern in modern society that requires a lot of attention. As a result, flood water must be treated. By collecting the waste treatment of water using chemicals, a bot for flood water cleaning and treatment utilizing IoT is created. Keywords: Internet of Things, Flood Waste, Water Treatment, Bot, Bluetooth, Arduino

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Patel, Yuvraj, Deepanshu Pandita, Ashwin Nair, Nikhil Mathapati, and Mimi Cherian. "IoT Based Bot for Flood Water Cleaning and Treatment." International Journal for Research in Applied Science and Engineering Technology 10, no. 4 (April 30, 2022): 2063–67. http://dx.doi.org/10.22214/ijraset.2022.41703.

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Abstract: This survey paper is an attempt to construct a bot that can clean and treat flood water. During floods, water becomes contaminated with waste because the use of plastic and other harmful materials is increasing uncontrollably in many floodaffected areas. Toxins from these elements disrupt the ecosystem and endanger human health, leading to cancer, congenital malformations, and immune system problems. Water scarcity is a severe concern in modern society that requires a lot of attention. As a result, flood water must be treated. By collecting the waste treatment of water using chemicals, a bot for flood water cleaning and treatment utilizing IoT is created. Keywords: Internet of Things, Flood Waste, Water Treatment, Bot, Bluetooth, Arduino

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Meng, Yan Mei, Zhen Dong, Fu Ning Lu, Shang Ping Li, and Kai Xu. "Research and Analysis on the Mechanical Characteristics of Brush Shape Cleaning Element in Spiral Installation." Advanced Materials Research 97-101 (March 2010): 3565–70. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.3565.

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The cleaning element is not only the key part of the sugarcane harvester, but it is also the bottleneck of the development within the whole stalk of the sugarcane harvester. In this paper, it will theoretically elaborate on the structural forces that act on the spiraled and brushed shape cleaning elements during the process of the sugarcane cleaning. The paper also elaborates on the combined rigidity of elements in different arrangement installations and the maximum stress that acts on its roots. In addition to this，the FEA (Finite Element Analysis) software-ANSYS is used to analyze the structural force, the maximum stress, and the air resistance that is generated during the working process. The results of the analysis have been validated by experimentations. The experimental results indicate that, with the proper spiral angle cleaning element installed, it can both enhance the cleaning efficiency and reduce the maximum stress and the air resistance. Accordingly, it can improve the cleaning quality, prolong the working life of the cleaning element, and reduce the idling power waste of the cleaning device.

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Bílek, Petr, and Jakub Hrůza. "Optimization of the cleaning process on a pilot filtration setup for waste water treatment accompanied by flow visualization." EPJ Web of Conferences 180 (2018): 02007. http://dx.doi.org/10.1051/epjconf/201818002007.

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This paper deals with an optimization of the cleaning process on a liquid flat-sheet filter accompanied by visualization of the inlet side of a filter. The cleaning process has a crucial impact on the hydrodynamic properties of flat-sheet filters. Cleaning methods avoid depositing of particles on the filter surface and forming a filtration cake. Visualization significantly helps to optimize the cleaning methods, because it brings new overall view on the filtration process in time. The optical method, described in the article, enables to see flow behaviour in a thin laser sheet on the inlet side of a tested filter during the cleaning process. Visualization is a strong tool for investigation of the processes on filters in details and it is also possible to determine concentration of particles after an image analysis. The impact of air flow rate, inverse pressure drop and duration on the cleaning mechanism is investigated in the article. Images of the cleaning process are compared to the hydrodynamic data. The tests are carried out on a pilot filtration setup for waste water treatment.

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Różycka, Agnieszka, and Łukasz Kotwica. "Waste Originating from the Cleaning of Flue Gases from the Combustion of Industrial Wastes as a Lime Partial Replacement in Autoclaved Aerated Concrete." Materials 15, no. 7 (March 31, 2022): 2576. http://dx.doi.org/10.3390/ma15072576.

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This paper aims to study the suitability of partial replacement of lime by waste originating from the cleaning of flue gases from the combustion of industrial wastes in the production of autoclaved aerated concrete (AAC). The compressive strength, bulk density, pore structure, phase composition, and microstructure of hydration products of the AAC were analyzed. According to the results, the addition of the waste can effectively enhance the mechanical properties of AAC due to the differences in morphology of hydration product—1.1 nm tobermorite and related dense microstructure. The pore size distribution was significantly influenced by waste addition, which was one of the main reasons for the increase in thermal conductivity. The XRD and SEM results showed that foreign ions introduced with the wastes affect the synthesis of 1.1 nm tobermorite. Moreover, it was shown that waste containing a high content of CaO can be used as lime replacement, which allows reducing CO2 emissions during the AAC production process.

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Kalyanakumar, S., R. Praveen, Arun Shaji, and Diwakar. "Design and fabrication of drainage cleaning equipment." Journal of Physics: Conference Series 2040, no. 1 (October 1, 2021): 012043. http://dx.doi.org/10.1088/1742-6596/2040/1/012043.

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Abstract Water could also be variety one necessity of humans and each one residing beings. There is a number of water on the earth but it sincerely is not suitable for human use. Clean water is extra important and is used for a couple of purposes. The impurities observed in water can purpose dangerous diseases. Impurities in drainage water are often like empty bottles, polythene bags, papers etc. House drains empty themselves into the foremost drains which run beneath the foremost streets and beneath many lanes. Solid topics which is perhaps created thru human or animal activities, and which is perhaps disposed of due to the reality they’ll be dangerous or useless are mentioned as sturdy waste. Most of the sturdy wastes, like paper, plastic containers, bottles, cans, or even used motors and virtual gadgets aren’t biodegradable, this suggests that they’re not getting lessened through inorganic or herbal processes. Thus, after they collect they purpose a hazard to people. Decaying wastes moreover enchantment to have circle of relatives pests and convey about metropolis areas becoming unhealthy, dirty and unsightly places to be dwelling in. Moreover, it moreover motives damage to terrestrial organisms on the equal time as moreover reducing the uses of the land for specific extra useful purposes. Therefore, this problem goals immediately remedial measures. These impurities observed in drainage water can purpose blockage or the system.

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Tarasova, E. V. "Waste-water Treatment at Machine-building Enterprises." Izvestiya MGTU MAMI 4, no. 1 (January 10, 2010): 170–74. http://dx.doi.org/10.17816/2074-0530-69686.

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Analysis and evaluation of project documentation of construction of wastewater treatment facilities of industrial enterprises showed that the purification of industrial wastewater and surface waste water must be carried out at different treatment plants with different cleaning lines. The paper also reveals that the calculation determining the weighted average concentrations of pollutants in surface sewage is carried out incorrectly. The author proposes an improved method for determining the initial concentration of pollutants in surface wastewater.

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Barrulas, Raquel V., André D. Nunes, Sílvia O. Sequeira, Maria Helena Casimiro, and Marta C. Corvo. "Cleaning fungal stains on paper with hydrogels: The effect of pH control." International Biodeterioration & Biodegradation 152 (August 2020): 104996. http://dx.doi.org/10.1016/j.ibiod.2020.104996.

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Zhu, Jiannan, Yixin Yang, and Yuwei Cheng. "SMURF: A Fully Autonomous Water Surface Cleaning Robot with A Novel Coverage Path Planning Method." Journal of Marine Science and Engineering 10, no. 11 (November 1, 2022): 1620. http://dx.doi.org/10.3390/jmse10111620.

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In recent years, more attention has been paid to water surface environment protection. Current water surface waste cleaning mainly relies on manual operations, which are low-efficiency and dangerous. Therefore, in this paper, we design a fully autonomous water surface cleaning robot, SMURF, which achieves high-efficiency water surface cleaning without human operation and adapts to be used in various types of real-world water bodies. In addition, we propose a novel coverage path planning method on water surfaces and an improved nonlinear model predictive controller. The real-world experiment shows that SMURF works well in different kinds of water bodies and achieves much higher efficiency than traditional water surface cleaning methods.

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Dahab, M. F., D. L. Montag, and J. M. Parr. "Pollution prevention and waste minimization at a galvanizing and electroplating facility." Water Science and Technology 30, no. 5 (September 1, 1994): 243–50. http://dx.doi.org/10.2166/wst.1994.0243.

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Pollution prevention, often referred to as source reduction, encompasses all activities that lead to reductions in the amount and/or toxicity of wastes. Waste minimization, on the other hand, refers to all activities including source reduction, on-site reuse, and recycling that lead to reductions in the amount and/or toxicity of waste generated, stored, treated, or disposed of by a given facility. Pollution prevention generally is regarded as the most cost-effective component of integrated waste management strategies. This paper describes an industrial pollution prevention program at an aging manufacturing facility in the Midwestern United States. The study focuses on metal electroplating and galvanizing. The facility under study produces fabricated metal products for farm and industrial use. The facility performs many operations including electroplating, conversion coating, cleaning, machining, grinding, impact deformation, shearing, welding, sand blasting, hot-dip galvanizing, painting, assembly and testing. Many of these processes result in the production of a variety of pollutants (gaseous, solid, and liquid) that must be disposed of in some fashion. For example, the electroplating line results in the production of acids and rinse water containing zinc and chromium and the hot-dip galvanizing line results in the production of acids and rinse water containing zinc and iron. All of these wastes must be treated as hazardous substances. The painting processes result in the production of used industrial acids, solvents, and chemicals used for cleaning and de-greasing metal components. Most of the recommended operational and process modifications were simple to implement, and their pay-back periods were fairly short.

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Zilverentant, A. G. "Pilot-testing, design and full-scale experience of a sequencing batch reactor system for the treatment of the potentially toxic waste water from a road and rail car cleaning site." Water Science and Technology 35, no. 1 (January 1, 1997): 259–67. http://dx.doi.org/10.2166/wst.1997.0061.

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A cleaning site for road and rail car tankers emits a waste water stream of 200-250 m3/d. The waste water was originally treated in a physico-chemical waste water treatment plant. It was required to improve the effluent quality in order to meet the future discharge limits. As a possible treatment technique the sequencing batch reactor (SBR) technology, with an option for powdered activated carbon (PAC) dosing, was selected. Waste water originating from road and rail car cleaning installations is known to be potentially toxic/inhibitory. As a first step in the design procedure a pilot test was run for a period of 8 months. This pilot showed the SBR to be an appropriate technology for the treatment of the waste water. The PAC option was not feasible. Based on the pilot results a full scale installation, comprising a batch reactor with a diameter of 10.4 m and a maximum water depth of 17.3 m, was designed and successfully started up. This paper presents the highlights of the total project.

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Moura, Leonardo De Lima, Claudio Fernando Mahler, and Heitor Mansur Caulliraux. "ASSESSMENT OF KITCHEN WASTE GENERATED IN A MATERNITY HOSPITAL: A CASE STUDY IN BRAZIL." Ciência e Natura 39, no. 2 (May 23, 2017): 402. http://dx.doi.org/10.5902/2179460x25752.

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Healthcare waste management (HCWM) is at problem in many developing countries. One of the main steps to implement a proper HCWM process is knowledge of the amount and composition of material generated. There are rare studies of the contribution of kitchen waste to the total mass of non-hazardous waste generated by hospitals in the world. This paper reports a diagnosis of waste generation by the kitchen of a maternity hospital in the state of Rio de Janeiro, Brazil. Using the method established by the World Health Organization (WHO), non-hazardous wastes of all sectors were weighed for seven consecutive days in July and August, 2015. The average kitchen waste generated was 92.77 kg.day-1 and 76,73 kg.day-1, respectively, corresponding to 43.65% and 46.44% of the total mass of general waste produced in the period, although there was no positive correlation between the generated mass of kitchen waste and the number of meals prepared and served. We concluded that kitchen waste poses a considerable challenge to HCWM, mainly involving temporary internal storage, external storage and container cleaning, as well in the physical conditions of the workers that transport the waste.

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Niu, Ru Xuan, Ying Qun Ma, Qun Hui Wang, Bo Yue, Yu Fei Yang, and Hong Zhi Ma. "Environmental Risk Assessment and Environmental Management of Waste Organic Solvents in Electronics Industry." Applied Mechanics and Materials 768 (June 2015): 595–601. http://dx.doi.org/10.4028/www.scientific.net/amm.768.595.

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Waste organic solvents have been classified as hazardous waste in many countries because of their toxicity, high volatility and Ignitability. Waste organic solvents are produced in a lot of industries including of the electronics industry. In this industry, organic solvents are used as cleaning agent and developer, which would generate a lot of waste organic solvents. In China, in the management and re-use of waste organic solvents, the current management systems are not completely. So it is need to learn the laws and regulations, treatment and disposal technologies, control standards of waste organic solvents generated in electronics industry in the developed countries. In this paper, based on an organic solvent waste for feature analysis and risk assessment, which generated by the electronics industry, Therefore, the waste organic solvent has a more serious environmental risk and human health risk through the soil and underwater than the air. Forbid the waste organic solvents produced company casual dump, in order to avoid the waste pollution. The evaluation result of the waste organic solvents produced by China's electronics industry is the data basis to obtain relevant management regulations On this basis, put forward the suggestion and management specifications of waste organic solvents, provide strong supports for the revise of the " National Catalogue of Hazardous Wastes ".

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Zimina, Daria A., Chingis A. Zhapkhandaev, and Artem A. Petrov. "Analysis of the Effect of Nanosilicates on the Strength and Porosity of Cement Stone." Key Engineering Materials 854 (July 2020): 175–81. http://dx.doi.org/10.4028/www.scientific.net/kem.854.175.

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The paper deals with well cementing, which is a complex engineering task requiring special tools and technologies. The authors give an example of complications that arise due to the poor quality of well cementing. The aim of the work is to study the mineral ultrafine additive-nanosilicates, which increase the strength of cement stone and reduce its porosity. Nanosilicate is formed during the cleaning of ore-thermal furnaces in metallurgical plants. One of such technologies is application of metallurgical waste, since it can improve the environment by cleaning the sludge fields from waste and reduce the cost of cement slurry by reducing the amount of cement in the composition. The study provides practical data showing that nanosilicates positively affect the strength of cement stone, reducing its porosity.

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Czapiewski, Konrad, Damian Mazurek, Anna Traczyk, and Marcin Wójcik. "Waste material flow analysis in the Łódź Metropolitan Area." European Spatial Research and Policy 27, no. 2 (December 30, 2020): 95–114. http://dx.doi.org/10.18778/1231-1952.27.2.07.

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The main sources of waste generation are: industry, municipal sector, and agriculture. Municipal waste is solid and liquid waste that arise in households, public utilities (trade, services, handicrafts) and municipal services (e.g. street cleaning and maintenance of green areas). The main aim of this paper are the analysis of the flow of municipal solid waste in Łódź Metropolitan Area, its composition, presentation of the process towards a more selective waste system, and the extraction of biodegradable waste from the MSW. The article is based on a report prepared within the Horizon 2020 project REPAiR “Resource Management in Peri-urban Areas: Going Beyond Urban Metabolism”.

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Suwarno, Peter, and Nurhayati Nurhayati. "Traditional Views and Attitude Toward Waste and Rivers in Indonesia: Challenges of Cleaning Up the Indonesia Polluted Enviroment." E3S Web of Conferences 317 (2021): 01002. http://dx.doi.org/10.1051/e3sconf/202131701002.

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Since water is an indispensable part of humanity, human communities settle near water sources, and one of the most popular water sources is a river. In the past millennial, around 80% of Javanese communities were located near rivers. However, traditional views, attitudes, and behavior during the development and urbanization era and lack of political will have compromised sustainable uses of rivers choked with pollution from industrial and neighborhood wastes. This paper will discuss the stories of pollution and waste management that have led to Indonesia being one of the most polluted nations by looking at traditional socio-cultural views of waste and rivers and efforts to deal with the problems of garbage. This study is mainly based on various data from previous research, NGO and government programs, and interviews with local community members and leaders. In addition to the challenges of garbage disposal and cleaning up Indonesian rivers, this study will conclude with suggestions on how to change people’s attitudes and behavior and government programs to create long-term sustainable and participative waste management efforts in Indonesia.

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Yuliati, Uci. "ANALISIS PERAN PEREMPUAN DALAM PENGELOLAAN SAMPAH RUMAH TANGGA (STUDI PADA MASYARAKAT KOTA BATU)." Jurnal Perempuan dan Anak 2, no. 1 (April 21, 2019): 39. http://dx.doi.org/10.22219/jpa.v2i1.5634.

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This research was carried out in Batu City. Women in the house-holds were the respondents of this research. This reseach was very important to be done because women were still dominating the cleaning activities at home in Indonesian society. Therefore it was interesting to learn deeply about their activities, access and control, beneficial and impact profiles while they were cleaning house-holds waste.Total area sampling consists three sub-district and respondents were choosen purposively with its criterions who were women as mother in the house-holds. The number of respondents were 73 women. Questionairres were used as an instrument for data collecting. SPSS program was the data analyses for having the cross-tabulation various profiles above. The result of analyses shown that women activities profile could be classify in to their activities from resulting house-hold waste until how they were cleaning their home from waste.Accsess and controll profile shown how they were managing their home waste, how to select it and throw it away to dumpsite then how they comunicated their difficulties to Waste Local Collector.The impact and beneficial profile shown what they had economic impact by selecting, separating and collecting house-holds solid waste. The result of research shows that most of women produced house-holds waste from cooking in their kitchen. Women used to manage household waste from providing boxs or plastic bags, broom, and then to sweap and to collect it and then through away from home to dumpsite.They used to clean their home from waste everyday dan sometimes their husbands, daugther and son help them. Women who often separate from wet and dry solid house-holds waste could find out the beneficial one namely plastic or glass bottle and paper. After separating it, women collected and then sold it after a few time for earning money.

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Chen, Xiao Ling, Kui Yu Gao, and Cheng Li. "Cleaning Waste Sulfuric Acid from PVC Gas Analysis Scheme Design and Composition Analysis." Applied Mechanics and Materials 675-677 (October 2014): 280–83. http://dx.doi.org/10.4028/www.scientific.net/amm.675-677.280.

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HWasu Corporation produces an enormous amount of PVC acetylene gas to wash waste sulfuric acid every year, and the composition of waste acid impurity is complex. The stench restricts the reuse of waste sulfuric acid, This paper establishes the detection scheme which is divide int three parts,respectively: escaping of the exhaust gas, liquid slag washing and washing slag quantitative analysis.Burning waste acid solid content of 11.40%, light component is 97.18%, sulfuric acid content of 79.22%, after washing slag of weight percent is 7.30%, Washing liquid slag quality percentage of 4.10%.Escaping gases mainly contain acetylene, hydrogen chloride, sulfur oxide impurities. Washing slag liquids mainly contain phosphoric acid root, organophosphorus, chloride, calcium, magnesium,iron ions and sulfuric acid root ion. Washing slags mainly contain silicon dioxide, carbon, hydrogen, calcium oxide, magnesium oxide, ferric oxide,and etc. Finally through the balance calculation of data, We can figure out that the experimental data is accurate and reliable for comprehensive utilization of wast sulfuric acid to provide basic theory data.

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A. M., Kola. "EVALUATION OF WASTE MANAGEMENT SYSTEMS IN A KENYAN TEA FACTORY: A CASE STUDY OF MARAMBA TEA FACTORY IN KIAMBU COUNTY." Journal of Engineering in Agriculture and the Environment 6, no. 1 (June 30, 2020): 31. http://dx.doi.org/10.37017/jeae.v6i1.65.

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This paper evaluates the effectiveness of waste management systems in Maramba Tea Factory in Kiambu County, Kenya. Performance of the already existing systems is therefore critical in sustaining our environment. Tea processing generates different types of wastes. A waste management system design should at least begin from a clear characterization of these wastes, the quantities and qualities of the wastes and identification of sources. This study attempted to bring these challenges to the fore. It evaluated the waste management systems for Maramba Tea factory in Kiambu County, Kenya. Primary data and secondary data, Purposively and Convenience sampling techniques, Benchmarking evaluation technique were utilised. The types of wastes identified were organic solid wastes, inorganic solid wastes, Liquid wastes and Thermal wastes. The quantities of wastes were determined by weighing. The Organic solid wastes from tea processing stages was 486.47 kilograms per month and inorganic solid wastes (sacks and polythene bags) was 15.38 kilograms per month. The amount of liquid wastes generated for the study period were estimated. The highest with major cleaning done weekly averaged of 139.4m3 and least with minor cleaning done daily averaged at 52.8m3. The thermal wastes generated was due to heat loss from the wood fuel used as a source of energy. The total amount of heat loss was 1145.51kcal/kg representing 37.45%. of the Gross Calorific Value (GCV) of wood fuel. The highest heat loss was due to dry flue gas with a 22.09% of GCV of wood fuel representing 675.85kcal/kg and the least due to moisture present in the combustion air at 24.78kcal/kg representing 0.810 % of the total GCV of wood fuel. The qualities of wastewater were achieved through analysing the BOD5, COD, pH and Electrical conductivity and comparing the values to the standards recommended by National Environment Management Authority (NEMA). The BOD5 at 83.7mg/L and COD at 106.63mg/L exceeded the NEMA limits of 30mg/L and 50mg/L respectively. The thermal waste systems were evaluated by determining the boiler efficiency. Boiler efficiency at Maramba Tea Factory was 62.55%. The boiler efficiency of 62.55% is lower compared to the set values of 75.01% and 75%. The analysis with ANOVA showed significant differences in the water parameter values from source through the lagoon to the river. The coefficient of determination (R2) for most of the parameter analysed were above 97%. It was concluded that the waste management systems are only partially effective at Maramba Tea Factory. More targeted studies need to be carried out in other food industries to make a general conclusion on the state of waste management systems in Kenya.

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UMIT HALIS, ERDOGAN, DURAN HICRAN, and SELLI FIGEN. "Recycling of cellulose from vegetable fiber waste for sustainable industrial applications." Industria Textila 70, no. 01 (March 1, 2019): 37–41. http://dx.doi.org/10.35530/it.070.01.1553.

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Recently two significant topics that became important for textile industry namely ‘providing sustainability by reusing of textile wastes’ and ‘developing high-valued new textile raw materials. Cellulose, which is a fascinating polymer, has been used for years as a raw material to obtain various products such as papers, fibers and films. In this study, it is aimed to provide sustainability with recycling of cellulose from waste jute fibers, considering the amount of waste jute weft yarns released in the production process of machine carpets. For this purpose, pre-cleaning of waste fibers was carried out at first, and then extraction of cellulose was accomplished, and finally characterization of recycled cellulose was performed. Organic acid extraction method was effective for isolation of cellulose from waste fibers with 43.65% yield performance. Microscopic and experimental analyses confirmed that non-cellulosic part of waste fibers were removed successfully and recycled cellulose has similar structure with control cellulose. Our results suggest that, waste vegetable fibers can be used as a potential source for cellulose. Recycled cellulose can be used in the production of paper, composites, regenerated cellulose fibers and other industrial applications.

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Steinberg, I., A. Bockreis, C. Rohde, and J. Jager. "Ecological assessment of waste air treatment systems in the case of biological waste treatment." Water Science and Technology 50, no. 4 (August 1, 2004): 33–38. http://dx.doi.org/10.2166/wst.2004.0213.

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In this paper, the authors present a technique aimed at increasing the efficiency of biological waste air treatment. The objective is to modify the existing biological waste air treatment systems (i.e. biofilters) to reduce the emitted substances and their potential environmental impacts. The principle of the ionization system is described, along with the first experiences of applying those methods during the rotting process. The investigated system is evaluated by means of life cycle impact assessment, with a focus on odour. It is demonstrated which of the measured substances (i.e. VOC) can potentially contribute to the odorant concentration. Further, it is shown which odour-intensive substances can be reduced by deploying ionization. Finally, the authors respond to the fact that the cleaning efficiency of ionization strongly depends on the humidity of the treated waste gas stream.

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Maysyuk, Elena. "Measures to prevent emissions of pollutants when burning coals in small-capacity boilers in the central ecological area of the Baikal natural territory." E3S Web of Conferences 77 (2019): 04007. http://dx.doi.org/10.1051/e3sconf/20197704007.

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The paper presents a brief description of the municipal coal-fired boiler plants of the central ecological zone and estimation of the emission of pollutants into the atmosphere. The intensity and volume of emissions depend on many factors. These are the capacity and efficiency of the boiler units, the amount of fuel consumed and its physicochemical properties, the type of furnace and the degree of flue gas cleaning. The study indicates that 25% of the total emissions from coal-fired boilers is produced by the energy sources with manually - loaded boilers with a unit capacity of up to 1 Gcal/hr without flue gas cleaning systems. The paper presents the main ways to reduce the emission of harmful substances into the atmosphere from heat production. The best available technologies for reducing emissions into the atmosphere and reducing waste generation are reviewed with a focus on preliminary fuel preparation and cleaning, technological measures and the installation of flue gas cleaning systems. Recommendations on their application in coal-fired small-capacity boiler plants in the central ecological zone of the Baikal natural territory are given.

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He, Tuo, Dongjie Niu, Gan Chen, Fan Wu, and Yu Chen. "Exploring Key Components of Municipal Solid Waste in Prediction of Moisture Content in Different Functional Areas Using Artificial Neural Network." Sustainability 14, no. 23 (November 22, 2022): 15544. http://dx.doi.org/10.3390/su142315544.

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Moisture content is a very important parameter for municipal solid waste (MSW) treatment technology selection and design. However, the moisture content of MSW collected from different urban areas is influenced by its physical composition in these areas. The aim of this study was to analyze the key components of MSW for predicting moisture content in different functional areas via the development of an artificial neural network (ANN) model. The dataset used in this study was collected in Shanghai from 2007 to 2019. Considering the influence of functional areas, the model obtained the performance with MAE of 2.67, RMSE of 3.29, and R2 of 0.83, and an eight-fold cross validation showed acceptable results. The inter-quartile range (IQR) and isolation forest were compared to detect and remove outliers. In descending order, the moisture content was ranked as commercial/residential > office > cleaning areas. Based on a parameter exclusion method, kitchen, rubber, and plastic wastes show the greatest influence on moisture content in residential and commercial areas. In cleaning and office areas, paper, wood and bamboo waste products were the most important components. The determination of key components in different functional areas is of benefit for reducing the workload of moisture content estimation.

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Schanbacher, Ansgar. "„eine der nöthigsten und wichtigsten Policey-Anstalten“." Zeitschrift für Historische Forschung: Volume 48, Issue 3 48, no. 3 (July 1, 2021): 437–73. http://dx.doi.org/10.3790/zhf.48.3.437.

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“One of the most necessary and most important public institutions”. Waste and Waste Management in the Early Modern City Historical research on waste has usually focused on the Late Middle Ages as well as on the 19th and 20th centuries when important technical and organisational changes took place. The early modern city has received less attention. Yet, it was by no means a place of stagnancy. It saw new developments such as a growing awareness of dirt and time, the leasing of street cleaning and discussions on spatial aspects of waste disposal. Indeed, early modern approaches to waste varied in different European regions. To give a sense of this diversity, this paper offers a micro-study of the city of Braunschweig’s waste management in Northwest Germany.

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Wilfred Shiju, D. "Canny Junk System based on IOT." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 3 (December 1, 2017): 639. http://dx.doi.org/10.11591/ijeecs.v8.i3.pp639-641.

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<p>Waste organization is one of the fundamental issue that the world goes up against free of the case of made or making country. The key issue in the waste organization is that the junk canister at open spots stretches out beyond time some time as of late the start of the accompanying cleaning process. It is this way prompts distinctive dangers, for instance, horrendous aroma and disagreeableness to that place which may be the principle driver for spread of various afflictions. To avoid all such hazardous circumstance and keep up open cleanliness also, prosperity this work is mounted on a splendid decline structure. The guideline subject of the work is to develop a sagacious astute deny prepared structure for a real junk organization .This paper proposes a smart prepared structure for junk space by giving an alert banner to the common web server for minute cleaning of dustbin with honest to goodness check based on level of waste filling. This technique is bolstered by the ultrasonic sensor which is interfaced with Arduino UNO to check the level of waste filled in the dustbin and sends the alert to the common web server once if waste is filled. </p>

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Tyutrin, Andrey A., and Andrey S. Vologin. "Analysis of the Composition and Properties of the Silicon Production Wet Cleaning Sludge to Identify Sustainable Techniques for its Processing." Solid State Phenomena 316 (April 2021): 649–54. http://dx.doi.org/10.4028/www.scientific.net/ssp.316.649.

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The paper is devoted to the urgent issue of processing the dust waste of metallurgical-grade silicon production, i.e. wet cleaning sludge, which contains a significant amount of valuable silica. The paper analyzes the formation of finely dispersed techno-genic materials that are generated in significant quantities (up to 120 t/d) at the Kremniy JSC. The composition and properties of the silicon production wet cleaning product have been studied. In analytical studies of the wet cleaning sludge samples, the modern certified analysis techniques have been used: laser diffraction, X-ray diffraction, and X-ray fluorescence. According to the analysis, the L:S ratio of liquid sludge is 2.1:1; after dehydration, the sludge cake has a grain size of 150 μm, with the prevailing (90 %) grain size of 59.65 μm in the test sample. The chemical composition of the sludge is 95.86 % SiO2; therefore, the wet cleaning sludge is a valuable raw material to produce metallurgical-grade silicon. Based on the analysis of the composition and properties of the silicon production wet cleaning sludge sample, we have developed a program for its processing. Sustainable sludge processing techniques are aimed at obtaining a briquetted charge, which can be used as an additive to the main raw material.

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Sevostyanov, Ivan, Anatoliy Hrytsun, Ihor Babyn, and Sergei Chuiko. "EQUIPMENT FOR HIGHLY EFFICIENT TREATMENT OF WASTE WATER AT AGRICULTURAL ENTERPRISES." ENGINEERING, ENERGY, TRANSPORT AIC, no. 1(104) (June 27, 2019): 36–46. http://dx.doi.org/10.37128/2520-6168-2019-1-5.

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The paper proposes a highly efficient equipment for the preliminary mechanical treatment of wastewater from agricultural enterprises, ensuring a continuous working process, the necessary quality of cleaning with minimal energy expenditure. The equations for determining the basic operating parameters of the equipment are given: changes in the flow area, flow rates of water passing through the installation, the required power of the electric motors. Also presented are graphical dependencies calculated using the obtained equations.

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Kijo-Kleczkowska, Agnieszka. "Combustion of Coal-Mule Briquettes / Spalanie Brykietów Z Mułu Węglowego." Archives of Mining Sciences 58, no. 3 (September 1, 2013): 617–28. http://dx.doi.org/10.2478/amsc-2013-0043.

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Abstract Combustion technologies coal-mule fuels create a number of new possibilities for organising combustion processes so that they fulfil contemporary requirements (e.g., in terms of the environment protection- related issues). The paper describes the problems of coal-mule fuel combustion that have acquired a wider significance as the quality requirements of coal combustion in power plants have been growing. Coal mines that want to fulfill expectations of power industry workers have been forced to develop and modernize plants of coal wet cleaning. It all results in the growing amount of waste arising in the process of coal wet cleaning which contains smaller and smaller coal undersizes. In this situation the concept of direct combustion of the above mentioned waste and their co-combustion with other fuels, coal and biomass, seems to be attractive. Biomass is one from the most promising sources of renewable energy. The main aim of the paper is to identify the mechanism and kinetics of combustion of coal-mule fuels and their co- -combustion with coal and biomass in the briquettes form based on extensive experimental research in air.

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Kübler, Jakob, R. Baechtold, Gurdial Blugan, K. Lemster, and S. Fuso. "Failure Analysis on a De-NOx Catalyst of a Large Waste Burner." Key Engineering Materials 290 (July 2005): 78–85. http://dx.doi.org/10.4028/www.scientific.net/kem.290.78.

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Modern waste burners are equipped with catalysts to reduce NOX. During operation the catalysts and their performance are influenced by, for example rapid temperature changes, facility vibrations, cleaning procedures and unwashed exhaust gas (when the catalyst is installed before the washer). The catalyst discussed in this paper comprised over 2’500 extruded elements of 150 x 150 x 770 mm3. During commissioning the catalyst elements exhibited a tendency to spall off pieces, thus preventing acceptance of the plant. For the failure analysis, one element from the catalyst was removed and two spare elements were selected. The investigation comprised a visual check, fractography, measurement of the most important physical, mechanical and chemical properties, and a microstructural analysis. It could be shown that: − Processing defects, such as extrusion defects, were the source of cracks which led to pieces spalling off; − Hot steam, used for periodic cleaning, reduced the structural strength by half; − The elements were exposed to higher mechanical loads than expected during transport; − The cleaning process, in combination with particles transported by the exhaust gas, has an erosive effect on the catalyst material; − Blockages, caused by catalyst material among other things, could be found at different depths; − The chemical composition did not significantly differ between used and unused elements. In summary, the failure analysis led to an understanding of the failure mechanism and to a set of recommendations for improvements whose implementation ultimately led to the plant being cleared for operation.

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Kablov, D. F., P. A. Zimovets, and I. N. Khlobzheva. "DEVELOPMENT OF A METHOD OF INDUSTRIAL WASTEWATER TREATMENT FROM THE RESIDUES OF IMPREGNATING SOLUTION." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 5(240) (May 19, 2020): 109–13. http://dx.doi.org/10.35211/1990-5297-2020-5-240-109-113.

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The paper Describes the process of cleaning liquid waste from the remnants of washing process equipment for the production of technical fabrics impregnated with synthetic fibers contaminated with impregnating solution using coagulants, flocculants, sorbents and filtrating materials. The problems of application of reagents for flocculation and coagulation and filtration of wastewater in modern conditions of anthropogenic pollution are considered. The main stages of liquid waste purification from pollutants are considered. The choice of modern reagents is made, their doses for decrease in turbidity of washing waters are defined.

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Jiang, Ming, and Zhenyu Liu. "Research on Solid Waste Transfer Strategy Based on Internet of Things." Journal of Advanced Computational Intelligence and Intelligent Informatics 22, no. 7 (November 20, 2018): 1104–8. http://dx.doi.org/10.20965/jaciii.2018.p1104.

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Innovation in this paper adopts the method of Internet of things, add solved the transportation scheduling based on the experience of the solid waste before feedback slower, based on the mathematical model of solid waste transportation scheduling problems cannot cope with the sudden situation. After fully considering the requirements of solid waste transportation green sustainability and the maximization of waste clearance in sanitation PPP project, the scheduling strategy based on iot data is given. And through in XX city, XX district cleaning section for example, the application shows that this method can meet the demand of public sanitation services, the basis of the solution of the maximum fuel consumption, reduce sanitation company the possibility of a fine, maximize trash pickup company interests, improve the efficiency of transportation.

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Xiong, Sheng, Xiujie Jia, Shuangshuang Wu, Fangyi Li, Mingliang Ma, and Xing Wang. "Parameter Optimization and Effect Analysis of Low-Pressure Abrasive Water Jet (LPAWJ) for Paint Removal of Remanufacturing Cleaning." Sustainability 13, no. 5 (March 8, 2021): 2900. http://dx.doi.org/10.3390/su13052900.

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As an environmentally friendly method, water jet (WJ) technology plays a significant role in the field of remanufacturing cleaning. The cleaning capacity of a WJ is severely restricted by the water pressure, while the impact force will be too large and may damage the cleaned substrate as well as cause energy waste if the pressure is too high. However, by adding abrasives, the cleaning capacity of a low-pressure water jet (LPWJ) will be considerably improved. Although abrasive water jet (AWJ) technology has been used in mechanical machining for decades, very limited research work can be found in the literature for remanufacturing cleaning. In this paper, the role of abrasives in low-pressure abrasive water jet (LPAWJ) cleaning was described. Cleaning performance with different parameters (abrasive feed rate condition, water pressure and standoff distance) in paint removal was experimentally investigated by using the Taguchi design of experiment. The experimental results indicated that the water pressure was the most dominant factor and the optimal parameter combination was the second feed rate condition, 9 MPa water pressure and 300 mm standoff distance. The influence law between the cleaning performance and various factors was explored, which can provide remanufacturers with directions in selection of the optimal parameters in the LPAWJ cleaning process. By designing contrast experiments, the results showed that the cleaning capacity of an LPAWJ is better than that of a pure LPWJ and the residual effect in terms of changes in surface roughness, residual stress and morphology is a little larger.

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Nguyen, Ngan Hong, Lon Cong Huynh, and Tung Anh Ha. "Optimizing the parameters of manure scraper equipment in cow milk dairy farm by the manure scraper model." Science and Technology Development Journal 20, K6 (October 31, 2017): 35–42. http://dx.doi.org/10.32508/stdj.v20ik6.1169.

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The sanitation system for dairy farms is very significant in increasing the productivity and quality of cow's milk, holding on the cow-shed clean and ensuring the health of cattle. The paper presents the theoretical basis for the design of an arrow-shaped raking mechanism and the effects of mechanical properties of the waste on the quality of the cleaning system. The experimental investigation determines the speed parameter, the appropriate angle for the work, which depends on the type of the floor and the characteristics of the waste, to achieve the highest efficiency. The results provide the parameters to clean the farm effectively.

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Pilip, Larisa V., and Maria E. Kazakova. "Chemical method of eliminating odors in commercial pig production." Butlerov Communications 62, no. 4 (April 30, 2020): 88–93. http://dx.doi.org/10.37952/roi-jbc-01/20-62-4-88.

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According to the Federal Waste Classification Catalogue swine manure and slurry are classified as hazardous wastes of class 3. When stored these wastes emit various gases into the atmosphere including greenhouse gases. It is possible to solve this problem by using a chemical approach. For binding pollutants of acidic nature it is proposed to use sodium hypochlorite showing the properties of bases, while for the substances having basic properties it is possible to use sulfuric acid. The distinctive feature of this method is the technology of using the wastes of chemical industry. This paper proposes and justifies the technological scheme of the chemical method for cleaning the air polluted by emissions from industrial pig enterprises. The research was performed under laboratory conditions, taking into account the technological specifics of pig industry. In the course of the study, gravimetric and potentiometric methods were used. The object of the study was native manure obtained from 4-month-old pigs. In the experiment, we used waste sulfuric acid and alkaline solution of sodium hypochlorite produced By "HaloPolymer Kirovo-Chepetsk". The handbook of best available methods in pig industry recommends using low-waste technologies, while it is possible to use waste products from local chemical enterprises for recycling agricultural waste. The technological solution will make it possible to reduce the concentration of odorigenic substances in the air of livestock premises, to eliminate odors from ventilation emissions, to reduce the toxicity of manure effluent and to process toxic fresh pig manure into granular organic fertilizer. The introduction of this scheme into industrial pig farming will dramatically reduce the amount of malodorous animal waste, significantly reduce odor pollution and improve the environmental situation in the areas adjacent to pig farms.

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Vos, Martijn C., Jessica Sauren, Olaf Knoop, Mirjam Galetzka, Mark P. Mobach, and Ad T. H. Pruyn. "Into the light: effects of the presence of cleaning staff on customer experience." Facilities 37, no. 1/2 (February 4, 2019): 91–102. http://dx.doi.org/10.1108/f-10-2017-0105.

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PurposeThe purpose of this paper is to determine how the presence of cleaning staff affects perceptions and satisfaction of train passengers. Day-time cleaning is becoming increasingly popular in (public) service environments. It is however unknown how the presence of cleaning staff in the service environment affects perceptions and satisfaction of end-users.Design/methodology/approachTwo experimental field studies were performed. Data for the first study were collected on the trajectory between the train station of Assen and the station of Groningen (N= 506) in the northern part of the Netherlands. Data for the second study were collected on the trajectory between train station “Amsterdam Amstel” and train station “Utrecht Centraal” (N= 1,113) in the central part of the Netherlands. In the experimental condition, two cleaners collected waste and performed minor cleaning activities (i.e. empty trash bins, cleaning doors and tables) during the journey. After the first study, cleaners received hospitality training and corporate uniforms.FindingsThe presence of cleaning staff positively influenced train passengers’ perceptions and satisfaction. Effects were stronger in the second study, after the second consecutive intervention (i.e. hospitality training, corporate uniforms). In both studies, the presence of cleaners positively influenced passengers’ perceptions of staff, cleanliness and comfort. The perception of atmosphere was only significant after the intervention.Practical implicationsThe findings of this study allow in-house and corporate facility managers to better understand the possible effects of the presence of their cleaning staff on end-user perceptions and satisfaction.Originality/valueThe study’s value lies in its human centred approach by demonstrating the importance of day-time cleaning. This area of research has been largely neglected in the field of facilities and (public) services management research.

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Rakovsky, Slavcho, Metody Anachkov, and Gennady Zaikov. "Fields of Ozone Applications." Chemistry & Chemical Technology 3, no. 2 (June 15, 2009): 139–61. http://dx.doi.org/10.23939/chcht03.02.139.

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The powerful oxidative action of ozone provides basis for development of novel or improved technologies which are widely used in ecology and industry. Special attention is paid to purification of waste gases, water, and soils. The disinfection and cleaning of drinking and process water are considered in detail. Applications of ozone in chemical, pharmaceutical and perfume industries, cosmetics, cellulose, paper and sugar industries, flotation, microelectronics, and many others are also examined in the review

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Ruzhitskaya, Olga A., and Elena S. Gogina. "Intensifying the Processes of Wastewater Purification from Phosphates and Organic Impurities." Advanced Materials Research 919-921 (April 2014): 2141–44. http://dx.doi.org/10.4028/www.scientific.net/amr.919-921.2141.

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The paper presents the results of research aimed at understanding the deep removal of phosphates from household wastewater. Provides a method for deep cleaning of waste water using reinforced material. The most complete removal of phosphate is achieved when using the technology without a return activated sludge. Displaying activating effect of reinforced material to the biological treatment process of organic pollution. Were obtained coefficients of the activation of the biological process with reinforced material.

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Raček, Jakub, Natalia Anferova, Petr Hluštík, and Petr Hlavínek. "Optimizing Sludge Management at the Municipal Solid Waste Incinerator—A Case Study." Proceedings 2, no. 11 (August 6, 2018): 651. http://dx.doi.org/10.3390/proceedings2110651.

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Sludge disposal is becoming an issue at the municipal solid waste incinerator (MSWI), especially for environmental and economic reasons. This paper describes a case study of the optimization of the sludge management (SM) system at the MSWI in the Czech Republic. The original concept of SM at MSWI was designed as waste-free. However, the present operation indicates that there is a need to carry out regular extraction and disposal of sludge settling at the bottom ash tank and the bottom of the retention basin. The current status of SM causes problems not only in terms of operation but it also entails significant financial costs given the necessary regular cleaning of tanks. The aim of the applied research presented in this paper is SM optimization by a mobile sludge dewatering (DW) press unit with optimal polymer combination for DW.

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Bleoju, Anca, Alin Pohilca, Daniela-Ioana Tudose, and Costel Iulian Mocanu. "Ship concept for cleaning the navigable inland water of floating debris." Analele Universităţii "Dunărea de Jos" din Galaţi Fascicula XI Construcţii navale/ Annals of "Dunărea de Jos" of Galati Fascicle XI Shipbuilding 44 (December 3, 2021): 39–46. http://dx.doi.org/10.35219/annugalshipbuilding/2021.44.06.

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Rivers like the Danube crossing many countries gather floating debris. These countless times block locks, access roads to ports, access walkways on the berths of passenger ships and more. The paper presents the studies carried out in order to design a ship for the collection of these floating debris. Several variants have been chosen, of which one will be presented that is optimal from the point of view of the propulsion installation and especially of the wave front that it produces during the operation of waste collection and navigation to the place of unloading. In order to optimize the shapes of the ship, the NUMECA calculation program was used. It provides important data on the wavefront produced by the ship.

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Liu, Zhen Dong, Fang Wang, Yong Li Chen, Huo Wu, Chen Lu, and Ji Hua Zhang. "Energy-Saving Design for a Composite Heating Water System from Kitchen Waste Heat and Solar Energy." Applied Mechanics and Materials 446-447 (November 2013): 1498–501. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.1498.

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This paper proposed an energy-saving system which combination solar collectors for heating water system with heat pipe heat exchanger to recover kitchen waste heat. Its working principle is using heat pipe exchangers exhaust heat to warm the cold water from water storage tank, and during the day, take advantage of solar collectors to help heat pipe heat exchanger heating the water. In this design, the heat exchanger tank and the heat storage tank arranged independently, water tank associated control system was provided with automatic temperature regulator to control the opening and stopping of the pump. This system made full use of kitchen waste heat and solar to meet the kitchen cooking and cleaning process hot water supply needs.

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Chen, Ke‐Zhang. "Development of integrated design for disassembly and recycling in concurrent engineering." Integrated Manufacturing Systems 12, no. 1 (February 1, 2001): 67–79. http://dx.doi.org/10.1108/09576060110361555.

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The extremely high and ever‐increasing annual disposal rates of solid waste have caused a big problem for environmental protection in the world. Unlike the first environmental revolution in the 1970s, which was aimed at cleaning up hazardous waste from contaminated sites and natural resources, the second revolution is addressing waste reduction at the source. The solution of these problems cannot rely only on legislation and must be supported by effective methods. This goal can be achieved through the design of products that promote disassembly, reusing and recycling. In order to design environmentally friendly products in concurrent engineering, this paper applies axiomatic design to develop the integrated design guidelines with Axiom 1 (independence axiom) for generating acceptable designs and an evaluation score with Axiom 2 (information axiom) for determining better or the best design from the acceptable designs.

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Journal articles on the topic 'Waste paper Cleaning'

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