Addressing arsenic mass poisoning in South Asia with electrochemical arsenic remediation

Ashok Gadgil, Susan Amrose, Siva Bandaru, Caroline Delaire, Andrew Torkelson, Case van Genuchten

Research output: Chapter in Book/Report/Conference proceedingChapter in bookResearchpeer-review

5 Citations (Scopus)


Millions of people in rural South Asia are exposed to high levels of naturally occurring arsenic through groundwater used for drinking. Many arsenic remediation technologies and other safe water strategies have been deployed, but quickly failed because they were not maintained, repaired, accepted, or affordable. In this chapter, we review the development to date of electrochemical arsenic remediation (ECAR) and demonstrate its promise to cornerstone a comprehensive sustainable and scalable safe water solution for rural communities in South Asia, directly addressing the causes of previous arsenic remediation failures. Specifically, we present results from experiments in synthetic groundwater, field trials in West Bengal, waste sludge stabilization in concrete, development of a predictive chemical dynamic model of ECAR performance, and preliminary studies of Escherichia coli and MS2 virus removal using ECAR. These results suggest that ECAR is a promising technology with the potential to provide a sustainable, scalable, and comprehensive clean water solution in arsenic-affected areas of South Asia.

Original languageEnglish
Title of host publicationWater reclamation and sustainability
EditorsSatinder Ahuja
Number of pages40
ISBN (Electronic)978-0-12-416576-2
ISBN (Print)978-0-12-411645-0
Publication statusPublished - 5 Jun 2014
Externally publishedYes


  • Arsenic
  • Bangladesh
  • Electrocoagulation
  • Groundwater
  • Heavy metals
  • In situ
  • South Asia
  • Water treatment

Programme Area

  • Programme Area 2: Water Resources


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