Arsenic removal from groundwater by small-scale reverse osmosis unit in rural Bihar, India

Hoinkis, J. and Hermann, M. and Schmidt, S. and Gukelberger, E. and Ghosh, A. and Chatterjee, D. and Bundschuh, J. (2012) Arsenic removal from groundwater by small-scale reverse osmosis unit in rural Bihar, India. In: 4th International Congress on Arsenic in the Environment: Understanding the Geological and Medical Interface of Arsenic (AS 2012), 22-27 July 2012, Cairns, Australia.

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Arsenic contamination of groundwater poses a serious threat to the population in low-lying Gangetic plain of Bihar where arsenic in groundwater occurs in a wide range from Below Detection Limit (BDL) up to more than 600 μg/L. Pilot-scale trials on arsenic removal were conducted at two locations employing an energy efficient small-scale Reverse Osmosis (RO) unit with upstream Granular Media Filters (GMFs) in order to remove precipitated iron(hydr)oxide. The trials showed that the major part of arsenic can be removed through co-precipitation and subsequent GMF, however, the arsenic level in most cases cannot comply with the Indian National Standard of 10 μg/L. Only subsequent treatment by RO will ensure safe values below the stipulated limit.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
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Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 31 Aug 2012 04:39
Last Modified: 30 Sep 2014 02:53
Uncontrolled Keywords: drinking water; urban areas; Bihar,India; purification; arsenic removal
Fields of Research : 04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040603 Hydrogeology
09 Engineering > 0904 Chemical Engineering > 090410 Water Treatment Processes
16 Studies in Human Society > 1605 Policy and Administration > 160507 Environment Policy
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering

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