Disposal Problem of Arsenic Sludge Generated During Arsenic Removal from Drinking Water
详细信息 查看全文
- 作者：Prasanta Mandal ; S.R. Debbarma ; Arup Saha ; Biswajit Ruj ; biswajitruj@yahoo.co.in" class="auth_mail" title="E-mail the corresponding author ; bruj@cmeri.res.in" class="auth_mail" title="E-mail the corresponding author
- 关键词：Arsenic Sludge ; Arsenic Removal ; Drinking Water
- 刊名：Procedia Environmental Sciences
- 出版年：2016
- 出版时间：2016
- 年：2016
- 卷：35
- 期：Complete
- 页码：943-949
- 全文大小：698 K
文摘
Arsenic (As) causes acute and chronic toxicity, it harm the skin and associated with increase risk of cancer in the skin, bladder and kidney. It is very difficult to diagnose the early symptoms of arsenicosis so it depends largely on awareness with improving the quality of drinking water. There are several methods are available for removal of As from water. The most commonly used technologies are oxidation, co-precipitation, adsorption, absorption, coagulation, ion-exchange resin, lime treatment and membrane techniques. Now today the safe disposal of large quantity of As contaminated sludge generated from As removal water treatment plant which contain about 5-7kg of arsenic per cubic meter due to risk of underground water contamination as arsenic has very high leaching potential. For safe disposal of solid hazardous waste of As requires treatment. A long term solution appears to solidification/stabilization (s/s) of As-sludge and using it for beneficial purposes like bricks and concretes etc. In the field of active research, this paper identifies the gap between the implementation of process as well as new technologies for safe disposal of arsenic sludge.