文章基本信息

标题：Contamination of groundwater by arsenic: a review of occurrence, causes, impacts, remedies and membrane-based purification
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作者：Parimal Pal ; Mou Sen ; Ajoy Manna 等
期刊名称：Journal of Integrative Environmental Sciences
印刷版ISSN：1943-815X
电子版ISSN：1943-8168
出版年度：2009
卷号：6
期号：4
页码：295-316
DOI：10.1080/19438150903185077
出版社：Taylor & Francis
摘要：The contamination of groundwater by leached out arsenic has assumed an alarming proportion in several countries. Continued and prolonged ingestion even at a very low level can lead to serious arsenic-related diseases. Strong epidemiological evidence of arsenic carcinogenicity has forced the World Health Organization (WHO) to lower the maximum permissible contaminant limit (MCL) in drinking water to 10 ppb from earlier limit of 50 ppb. This has thrown a big challenge to the scientific community to devise efficient methods to purify contaminated water to such a high level. Though literature abounds in occurrence of groundwater contamination by arsenic and its removal from drinking water by laboratory techniques, millions of people continue to suffer, particularly in the developing countries like India (Bangladesh, West Bengal). Through a comprehensive review of the existing literature on the occurrence, causes, impacts and remedial measures, this article finds out what has gone wrong and what is to be done with special emphasis on membrane-based separation that seems to be highly promising in purifying arsenic-contaminated groundwater to a WHO-prescribed level.
关键词：arsenic contamination;health hazards;arsenic removal;membrane separation;nanofiltration