Electro-chemical arsenic remediation: Field trials in West Bengal

Millions of people in rural South Asia are exposed to high levels of arsenic through groundwater used for drinking. Many deployed arsenic remediation technologies quickly fail because they are not maintained, repaired, accepted, or affordable. It is therefore imperative that arsenic remediation tech...

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Bibliographic Details
Published in:The Science of the total environment 2014-08, Vol.488-489, p.539-546
Main Authors: Amrose, Susan E., Bandaru, Siva R.S., Delaire, Caroline, van Genuchten, Case M., Dutta, Amit, DebSarkar, Anupam, Orr, Christopher, Roy, Joyashree, Das, Abhijit, Gadgil, Ashok J.
Format: Article
Language:English
Subjects:
Arsenic
Arsenic - analysis
Arsenic - chemistry
Bangladesh
Drinking Water - chemistry
Electrocoagulation
Environmental Monitoring
Environmental Restoration and Remediation - methods
Field trial
Groundwater - chemistry
India
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - chemistry
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Summary:Millions of people in rural South Asia are exposed to high levels of arsenic through groundwater used for drinking. Many deployed arsenic remediation technologies quickly fail because they are not maintained, repaired, accepted, or affordable. It is therefore imperative that arsenic remediation technologies be evaluated for their ability to perform within a sustainable and scalable business model that addresses these challenges. We present field trial results of a 600L Electro-Chemical Arsenic Remediation (ECAR) reactor operating over 3.5months in West Bengal. These results are evaluated through the lens of a community scale micro-utility business model as a potential sustainable and scalable safe water solution for rural communities in South Asia. We demonstrate ECAR's ability to consistently reduce arsenic concentrations of ~266μg/L to
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2013.11.074