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Статті в журналах з теми "Soils – Arsenic content – Vermont"
Machado, Matheus Rodrigo, David José Miquelluti, and Mari Lucia Campos. "Arsenic in Santa Catarina soils." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 16, no. 5 (October 6, 2021): 1–11. http://dx.doi.org/10.4136/ambi-agua.2720.
Повний текст джерелаKobza, Jozef. "Arsenic in Agricultural Soils of Slovakia." Polish Journal of Soil Science 54, no. 1 (June 29, 2021): 89. http://dx.doi.org/10.17951/pjss.2021.54.1.89-101.
Повний текст джерелаLi, Lian Fang, Xi Bai Zeng, Shi Ming Su, Cui Xia Wu, and Ya Lan Wang. "Arsenic Content and the Bioavailability in Farmland Soils Affected by Mining Activities of a Realgar Ore, South China." Advanced Materials Research 955-959 (June 2014): 3645–54. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.3645.
Повний текст джерелаGersztyn, Leszek, Anna Karczewska, and Bernard Gałka. "Influence of pH on the solubility of arsenic in heavily contaminated soils / Wpływ pH na rozpuszczalność arsenu w glebach silnie zanieczyszczonych." Ochrona Srodowiska i Zasobów Naturalnych 24, no. 3 (September 1, 2013): 7–11. http://dx.doi.org/10.2478/oszn-2013-0031.
Повний текст джерелаde Menezes, Michele Duarte, Fábio Henrique Alves Bispo, Wilson Missina Faria, Mariana Gabriele Marcolino Gonçalves, Nilton Curi, and Luiz Roberto Guimarães Guilherme. "Modeling arsenic content in Brazilian soils: What is relevant?" Science of The Total Environment 712 (April 2020): 136511. http://dx.doi.org/10.1016/j.scitotenv.2020.136511.
Повний текст джерелаKowalska, Joanna, Jerzy Golimowski, and Ewa Kazimierska. "Determination of Total and Mobile Arsenic Content in Soils." Electroanalysis 13, no. 10 (June 2001): 872–75. http://dx.doi.org/10.1002/1521-4109(200106)13:10<872::aid-elan872>3.0.co;2-f.
Повний текст джерелаAlam, M. B., and M. A. Sattar. "Assessment of arsenic contamination in soils and waters in some areas of Bangladesh." Water Science and Technology 42, no. 7-8 (October 1, 2000): 185–92. http://dx.doi.org/10.2166/wst.2000.0568.
Повний текст джерелаGu, Qing Bao, Chang Sheng Peng, Qian Zhang, and Fa Sheng Li. "Growth Effect and Accumulation of as on / in Two Vegetables in Three Types of Chinese Soil." Advanced Materials Research 347-353 (October 2011): 2048–53. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.2048.
Повний текст джерелаZhu, Zongqiang, Shuai Zhou, Xiaobin Zhou, Shengpeng Mo, Yinian Zhu, Lihao Zhang, Shen Tang, Zhanqiang Fang, and Yinming Fan. "Effective Remediation of Arsenic-Contaminated Soils by EK-PRB of Fe/Mn/C-LDH: Performance, Characteristics, and Mechanism." International Journal of Environmental Research and Public Health 19, no. 7 (April 6, 2022): 4389. http://dx.doi.org/10.3390/ijerph19074389.
Повний текст джерелаKaravaeva, Tatiana, Elena Menshikova, Pavel Belkin, and Vyacheslav Zhdakaev. "Features of Arsenic Distribution in the Soils of Potash Mines." Minerals 12, no. 8 (August 16, 2022): 1029. http://dx.doi.org/10.3390/min12081029.
Повний текст джерелаДисертації з теми "Soils – Arsenic content – Vermont"
Mewett, John University of Ballarat. "Electrokinetic remediation of arsenic contaminated soils." University of Ballarat, 2005. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/12797.
Повний текст джерелаMasters of Applied Science
Mewett, John. "Electrokinetic remediation of arsenic contaminated soils." University of Ballarat, 2005. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/14633.
Повний текст джерелаMasters of Applied Science
Ricker, Tracy Ryan. "Arsenic in the Soils of Northwest Oregon." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/927.
Повний текст джерелаHurtado, Heather Ann. "Naturally Occurring Background Levels of Arsenic in the Soils of Southwestern Oregon." PDXScholar, 2015. https://pdxscholar.library.pdx.edu/open_access_etds/2996.
Повний текст джерелаEdvantoro, Bagus Bina. "Bioavailability, toxicity and microbial volatilisation of arsenic in soils from cattle dip sites." Title page, Contents and Abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09A/09ae24.pdf.
Повний текст джерелаFerreira, Gabriela Ribeiro de Sena. "Arsenic Mobilization from Silicic Volcanic Rocks in the Southern Willamette Valley." PDXScholar, 2016. http://pdxscholar.library.pdx.edu/open_access_etds/2752.
Повний текст джерелаHuang, Tai-Hsiang, and 黃泰祥. "Using Soil Water Management to Decrease the Arsenic Content of Brown Rice Grown in the Two Arsenic Contaminated Soils." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/84135529787870868218.
Повний текст джерела國立臺灣大學
農業化學研究所
101
Rice (Oryza sativa L.) is efficient to translocate arsenic to the grain. In the arsenic contaminated paddy field, arsenic is reduced and mobilized in the submerged condition. Thus, the potential risk of food safety increased when rice grown in the As-contaminated paddy soil. The solubility of arsenic is decreased in the aerobic soil condition while soil drainage is applied. The aims of the study are (1) to mitigate the arsenic concentration in the brown rice grown in two arsenic contaminated soils with soil water managements, and (2) to investigate the arsenic species in the brown rice under soil water managements. The pot experiment conducted with Er and Gd contaminated soil, and with five soil water managements including, (1) conventional treatment : drainage for one week at the rice maximum-tiller-number stage and keep water head at 3-5 cm depth to the flowering stage, and followed by intermittent irrigation; (2) aerobic before flowering treatment (A/F), keep soil aerobic condition before flowering stage, and then keep water head at 3-5 cm depth in the resting cultivation; (3) aerobic after flowering treatment (F/A), keep water head at 3-5 cm depth before flowering stage and then keep soil aerobic in the resting cultivation; (4) water saturated treatment, maintain the soil pore saturated with water and no water ponded on the soil surface; and (5) flooding treatment, keep the water head at 3-5 cm depth during the whole cultivation period. The flooding treatment serves as control, to investigate the effect of soil drainage at different vegetation period on mitigating the brown rice arsenic. Based on the characteristics of soil drainage in Gd and Er soils, the arsenic concentration in the brown rice was found decreased in conventional treatment in the Gd soils rather than in the Er soil. The arsenic toxicity happened to the paddy rice was reduced in A/F and water saturated treatments (p<0.05), and the arsenic concentration of the brown rice was also decreased. The ratio of arsenic species content in the brown rice depends on soil water managements, the DMA concentration is increased with the arsenic concentration in the brown rice under the conventional, F/A and flooding treatments (p<0.05). While inorganic arsenic was found dominant in the brown rice of the A/F and water saturated treatments, and which contributed 60-100% of the arsenic concentration in the brown rice. Provisional tolerance weekly intake of inorganic arsenic of the treatments in this study was all met the WHO standard of 15 μg/kg (body weight). The A/F and water saturated treatment mitigate the total arsenic concentration of brown rice (p<0.05), which are recommended to the application in the field.
Edvantoro, Bagus Bina. "Bioavailability, toxicity and microbial volatilisation of arsenic in soils from cattle dip sites." Thesis, 2000. http://hdl.handle.net/2440/110365.
Повний текст джерелаMudzielwana, Rabelani. "Synthesis and potential application of Fe3+/Mn2+ bimetal and hexadecyltrimethylammonium bromide (HDTMA-Br) modified clayey soils for arsenic removal in groundwater." Thesis, 2019. http://hdl.handle.net/11602/1288.
Повний текст джерелаDepartment of Ecology and Resource Management
The presence of arsenic in groundwater has drawn worldwide attention from researchers and public health officials due to its effects on human health such as, cancer, skin thickening, neurological disorders, muscular weakness, loss of appetite and nausea. World Health Organisation (WHO) has set the limit of 10 μg/L for arsenic in drinking water in trying to reduce the effects of arsenic. This was further adopted by South African National Standard (SANS). The present study aims at evaluating arsenic concentration in selected groundwater sources around Greater Giyani Municipality in Limpopo Province and further synthesize clay based adsorbents for arsenic removal using Fe3+ and Mn2+ oxides and hexadecylammonium bromide (HDTMA-Br) cationic surfactant as modifying agents. The first section of the work presented the hydrogeochemical characteristics of groundwater in the Greater Giyani Municipality. The results showed that the pH of the samples ranges from neutral to weakly alkaline. The dominance of major anionic and cationic species was found to be in the order: HCO3 ->Cl->SO4 2->NO3 - and Na+>Mg2+>Ca2+>K+>Si4+, respectively. Hydrogeochemical facies identified in the study area include CaHCO3 (90%) and mixed CaNaHCO3 (10%) which shows the dominance of water-rock interaction. About 60% of the tested samples contains arsenic concentration above 10 μg/L as recommended by SANS and WHO. Concentration of arsenic was found to be ranging between 0.1 to 172.53 μg/L with the average of 32.21 μg/L. In the second part of this work, arsenic removal efficiency of locally available smectite rich and kaolin clay was evaluated. Results showed that the percentage As(V) removal by kaolin clay was optimum at pH 2 while the percentage As(III) removal was greater than 60% at pH 2 to 12. For smectite rich clay soils, the percentage of As(III) and As(V) removal was found to be optimum at pH between 6 and 8. The adsorption isotherm data for As(III) and As(V) removal by both clays fitted better to Freundlich isotherm. Adsorption of both species of arsenic onto the clay mineral occurred via electrostatic attraction and ion exchange mechanisms. Both clay soils could be regenerated twice using Na2CO3 as a regenerant. Kaolin clay showed a better performance and was selected for further modification. In the third section of this work, Fe-Mn bimetal oxide modified kaolin clay was successfully synthesized by precipitating Fe3+ and Mn2+ metal oxides to the interlayer surface of kaolin clay. Modification of kaolin clay increased the surface area from 19.2 m2/g to 29.8 m2/g and further v decreased the pore diameter from 9.54 to 8.5 nm. The adsorption data fitted to the pseudo second order of reaction kinetics indicating that adsorption of As(III) and As(V) occurred via chemisorption. The adsorption isotherm data was described by Langmuir isotherm models showing a maximum As(III) and As(V) adsorption capacities of 2.16 and 1.56 mg/g, respectively at a temperature of 289 K. Synthesized adsorbent was successfully reused for 6 adsorptiondesorption cycles using K2SO4 as a regenerant. Column experiments showed that maximum breakthrough volume of ≈2 L could be treated after 6 hours using 5 g adsorbent dosage. Furthermore, the concentration of Fe and Mn were within the WHO permissible limit. In the fourth part of the work kaolin clay was functionalized with hexadecyltrimethylamonium bromide (HDTMA-Br) cationic surfactant and its application in arsenic removal from groundwater was investigated. The results revealed that adsorption of As(III) and As(V) is optimum at pH range 4-8. The maximum As(III) and As(V) adsorption capacities were found 2.33 and 2.88 mg/g, respectively after 60 min contact time. Pseudo first order model of reaction kinetics described the adsorption data for As(V) better while pseudo second order model described As(III) adsorption data. The adsorption isotherm data for As(III) and As(V) fitted well to Langmuir model indicating that adsorption of both species occurred on a mono-layered surface. Adsorption thermodynamics model revealed that adsorption of As(III) and As(V) was spontaneous and exothermic. The As(III)/As(V) adsorption mechanism was ascribed to electrostatic attraction and ion exchange. The regeneration study showed that synthesized adsorbent can be used for up to 5 times. In the firth part of the work inorgano-organo modified kaolin clay was successfully synthesized through intercalation of Fe3+ and Mn2+ metal oxides and HDTMA-Br surfactant onto the interlayers of the clay mineral. The batch experiments showed that As(III) removal was optimum at pH range of 4-6, while the As(V) removal was optimum at pH range 4-8. The adsorption data for both species of arsenic showed a better fit to pseudo second order of reaction kinetics which suggest that the dominant mechanism of adsorption was chemisorption. The isotherm studies showed better fit to Langmuir isotherm model as compared to Freundlich model. The maximum adsorption capacity As(III) and As(V) at room temperature as determined by Langmuir model were found to be 7.99 mg/g and 7.32 mg/g, respectively. The thermodynamic studies for sorption of As(III) and As(V) showed negative value of ΔGᴼ and ΔHᴼ indicating that adsorption process occurred spontaneously and is exothermic in nature. The regeneration study showed that the vi inorgano-organo modified kaolin clay can be reused for up 7 adsorption-regeneration cycles using 0.01 M HCl as a regenerant. Thomas kinetic model and Yoon-Nelson model showed that the rate of adsorption increases with increasing flow rate and initial concentration and decreases with increasing of the bed mass. In conclusions, adsorbents synthesized from this work showed a better performance as compared to other adsorbents available in the literature. Among the synthesized adsorbents, inorgano-organo modified clay showed highest adsorption capacity as compared to surfactant functionalized and Fe-Mn bimetal oxides modified kaolin clay. However, all adsorbents were recommended for use in arsenic remediation from groundwater. The following recommendations were made following the findings from this study: 1) routine monitoring of arsenic in groundwater of Greater Giyani Municipality, 2) evaluating the possible link between arsenic exposure and arsenic related diseases within Giyani in order to find the extent of the problem in order to establish the population at risk, 3) The toxicity assessment for HDTMA-Br modified kaolin clay should be carried out, 4) Materials developed in the present study should be modeled and tested at the point of use for arsenic removal, and lastly, 5) this study further encourage the development of other arsenic removal materials that can be used at household level.
NRF
Nicholson, Heather Christine. "Arsenic in plants important to two Yukon First Nations : impacts of gold mining and reclamation practices." Thesis, 2002. http://hdl.handle.net/2429/13867.
Повний текст джерелаКниги з теми "Soils – Arsenic content – Vermont"
Peryea, Frank J. Leaching of lead and arsenic in soils contaminated with lead arsenate pesticide residues. Wenatchee, Wash: Tree Fruit Research and Extension Center, Washington State University, 1989.
Знайти повний текст джерелаPutilina, V. S. Povedenie myshʹi︠a︡ka v pochvakh, gornykh porodakh i podzemnykh vodakh: Transformat︠s︡ii︠a︡, adsorbt︠s︡ii︠a︡/desorbt︠s︡ii︠a︡, migrat︠s︡ii︠a︡ : analiticheskiĭ obzor. Novosibirsk: GPNTB SO RAN, 2009.
Знайти повний текст джерелаGakkai, Nihon Dojō Hiryō. Dojō kankyōchū no yūgai genso no kyodō: Hōsha kōgen ekkususen kyūshū bunkōhō ni yoru bunshi sukēru supeshiēshon. Tōkyō-to Arakawa-ku: Hakuyūsha, 2012.
Знайти повний текст джерелаDavis, Andy. Predicting arsenic mobility as part of the Anaconda Sewage Treatment Lagoon Waterfowl Project. Place of publication not identified]: Camp Dresser & McKee, 1986.
Знайти повний текст джерелаPeryea, Frank J. Bioremediation of lead arsenate-contaminated soils. [S.l: s.n., 1991.
Знайти повний текст джерелаGolding, Steven. Survey of typical soils arsenic concentrations in residential areas of the City of University Place. Olympia, Wash: Washington State Dept. of Ecology, Environmental Assessment Program, 2001.
Знайти повний текст джерелаRichard, Jack. Mobilization and impacts of arsenic species and selected metals on a wetland adjacent to the B&L Landfill, Milton. Olympia, Wash: Dept. of Ecology, 2002.
Знайти повний текст джерелаRichard, Jack. Mobilization and impacts of arsenic species and selected metals on a wetland adjacent to the B & L Landfill, Milton. Olympia, Wash: Dept. of Ecology, Environmental Assessment Program, 2002.
Знайти повний текст джерелаWashington State University. Cooperative Extension. and United States. Dept. of Agriculture., eds. Gardening on lead- and arsenic-contaminated soils. [Pullman, WA]: Washington State University, Cooperative Extension, 1999.
Знайти повний текст джерелаFeroze, Ahmed M., and ITN-Bangladesh (Network), eds. Arsenic contamination: Bangladesh perspective. Dhaka: ITN-Bangladesh, Centre for Water Supply and Waste Management, 2005.
Знайти повний текст джерелаЧастини книг з теми "Soils – Arsenic content – Vermont"
Chandrasekhar, V., A. Joshi, and D. Chandrasekharam. "Arsenic content in groundwater and soils of Ballia, Uttar Pradesh." In Water-Rock Interaction. Taylor & Francis, 2007. http://dx.doi.org/10.1201/noe0415451369.ch212.
Повний текст джерела"Content of arsenic and heavy metals in the soils around the Novocherkassk Power Station." In Understanding the Geological and Medical Interface of Arsenic - As 2012, 303–5. CRC Press, 2012. http://dx.doi.org/10.1201/b12522-104.
Повний текст джерелаТези доповідей конференцій з теми "Soils – Arsenic content – Vermont"
Avkopashvili, Guranda, Alexander Gongadze, Lasha Asanidze, Marika Avkopashvili, and Irakli Avkopashvili. "ARSENIC AND LEAD CONTENT OF RACHA, SAMEGRELO AND ZEMO SVANETIAN SOILS, GEORGIA." In 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021. STEF92 Technology, 2021. http://dx.doi.org/10.5593/sgem2021/3.1/s13.52.
Повний текст джерелаBaeva, Yulia. "THE CONTENT OF HEAVY METALS AND ARSENIC IN POST-AGROGENIC SOILS OF VARIOUS CLIMATIC ZONES IN RUSSIA." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/3.2/s13.063.
Повний текст джерелаGeddes, Brian, Chris Wenzel, Michael Owen, Mark Gardiner, and Julie Brown. "Remediation of Canada’s Historic Haul Route for Radium and Uranium Ores: The Northern Transportation Route." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59303.
Повний текст джерелаЗвіти організацій з теми "Soils – Arsenic content – Vermont"
Akinleye, Taiwo, Idil Deniz Akin, Amanda Hohner, Indranil Chowdhury, Richards Watts, Xianming Shi, Brendan Dutmer, James Mueller, and Will Moody. Evaluation of Electrochemical Treatment for Removal of Arsenic and Manganese from Field Soil. Illinois Center for Transportation, June 2021. http://dx.doi.org/10.36501/0197-9191/21-019.
Повний текст джерела