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ISBN:089867865X
Author: Janet Hering,M. Elimelech
ISBN13: 978-0898678659
Title: Arsenic Removal by Enhanced Coagulation and Membrane Processes
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ePUB size: 1288 kb
FB2 size: 1716 kb
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Language: English
Category: Engineering
Publisher: Amer Water Works Assn (July 1, 1996)
Pages: 188

Arsenic Removal by Enhanced Coagulation and Membrane Processes by Janet Hering,M. Elimelech



Enhanced coagulation for arsenic removal. Journal of the American Water Works Association, 86(9), 79–90. Chwirka, J. Thomson, B. & Stomp, J. M. (2000). Removing arsenic from groundwater. Journal of the American Water Works Association, 92(3), 79–88. Environmental Progress, 25(4), 300–311. CrossRefGoogle Scholar. Hering, J. & Elimelech, M. (1997). Arsenic removal by enhanced coagulation and membrane processes (pp. 167–188). American Water Works Association. Hering, . Chen, . Y. Wilkie, J. Arsenic removal from drinking water during coagulation. Journal of Environmental Engineering, 123(8), 800–807. Baek, . & Yang, . W.

Also, Hering et al. found that arsenate. removal by coagulation using FeCl3 was efficient than arsenite. removal and arsenite could not be removed by coagulation. Han et al. indicated that coagulation and. electrocoagulation by FeCl3 could remove arsenic in water. removal of As (V) was enhanced but as a shown in Figure. 3, residual iron after coagulation was more than . mg/l, which is the Iranian maximum contaminant level of iron. 18. Hering JG, Chen PY, Wilkie JA, Elimelech M, Liang S. Arsenic removal. J Am Water Works Assoc 1996;88:155‑67.

1997) "Arsenic Removal from Drinking Water by Coagulation: The Role of Adsorption and Effects of Source Water Composition", in Arsenic: Exposure and Health Effects, ed. . Campbell, Chapman and Hall, pp. 369-381. 1995) "The effects of organic-surface interactions on geochemical processes at the mineral-water interface", in Advances in Aquatic Chemistry, ed. Huang, . Morgan, ACS Advances in Chem. Se. 244, 95-110, American Chemical Society, Wash. Report 91043F, Denver, CO. and Elimelech, M. (1996) Arsenic Removal by Enhanced Coagulation and Membrane Processes, Amer.

Hering, M. Elimelech, Arsenic Removal by Enhanced Coagulation and Membrane Processes, AWWARF, 1996. Jang, W. Cannon, Preloading hydrous ferric oxide into granular activated carbon for arsenic removal, Environ. Borho, P. Wilderer, Optimized removal of arsenate(III) by adaptation of oxidation and precipitation processes to the ltration step, Water Sci. Technol.

A compilation of papers presented at the International Workshop on Technologies for Arsenic Removal from Drinking Water organized by Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh and The United Nations University, Tokyo, Japan. Arsenic Removal by Enhanced Coagulation & Membrane Processes. Hering & Elimelech.

The arsenic removal technologies can be grouped into the following four categories: Coagulation and filtration, Sportive filtration, Oxidation and sedimentation, Membrane filtration. In the process of coagulation and flocculation, arsenic is removed from solution through three mechanisms: Precipitation: The formation of insoluble compounds, Co-precipitation: The incorporation of soluble arsenic species into a growing metal, hydroxide phase, Adsorption: The electrostatic binding of soluble arsenic to external surfaces of the insoluble metal hydroxide  . The possible use of enhanced coagulation for arsenic removal was examined at the facilities of à California utility in 1992 and 1993. The tests Were conducted at bench, pilot, and demonstration scales, with two source waters. Alum and ferric chloride, with cationic polymer, ware investigated at various influent arsenic concentrations.

K. Arsenic Removal by Enhanced Coagulation Membrane and Processes. Soluble Arsenic Removal Full-Scale in Treatment Plants. Arsenic in theEnvironment. Combined Arsenic and Nitrate Removal by Ion exchange. Rich Hydrous Manganese Oxide in the Accumulation of Arsenic in Lake sediments. html US EPA. and McLean. The equlibrium Arsenic Capacity of Activated Alumina. K 19. Arsenic Removal by RO and NF Membranes. Wafer Science and Technology. Evaluating Removal Arsenic Technologies.

Several techniques have been implemented for arsenic removal from water such adsorption on oxides and activated carbon, anion exchange, reverse osmosis or coagulation methods. The adsorption over both natural and synthetic zeolites was widely investigated. Natural clay samples were also studied for arsenic removal in water. Zeolites and clays showed interesting adsorption capacities due to the presence of aluminol and silanol hydroxyl groups in their structures. J. G. Hering, M. Elimelech, Arsenic removal by enhanced coagulation and membrane processes. Driehaus, M. Jekal, U. Hildebrand, Granular ferric hydroxide: a novel adsorbent for the removal of arsenic from natural water, J. Water SRT, 47 (1998) 30-35.

Edwards M (1994) Enhanced coagulation for arsenic removal. Journal of the American Water Works Association 86, 79-89. Gemici Ü, Tarcan G (2004) Hydrogeological and hydrogeochemical features of the Heybeli spa, Afyon, Turkey: arsenic and the other contaminants in the thermal waters. Hering JG, Chen PY, Wilkie JA, Elimelech M (1997) Arsenic removal from drinking water during coagulation. Journal o f Environmental Enginering 123, 800-807. Hering JG, Chen PY, Wilkie JA, Elimelech M, Liang S (1996) Arsenic removal by ferric chloride. Journal o f American Water Works Association 88, 155-167. Karcher S, Caceres L, Jekel M, Contreras R (1999) Arsenic removal from water supplies in N orthern Chile using ferric chloride coagulation. Journal o f Chartered Institution of Water and Environmental Management 13, 164-168.

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