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Extramural Research

Grantee Research Project Results

Grantee Research Project Results

Arsenic Removal and Ecologically Safe Containment of Arsenic-waste: A Sustainable Solution for Arsenic Crisis in Cambodia

EPA Grant Number: SU834717
Title: Arsenic Removal and Ecologically Safe Containment of Arsenic-waste: A Sustainable Solution for Arsenic Crisis in Cambodia
Investigators: SenGupta, Arup K. , Chatterjee, Prasun , Smith, Ryan , Uy, Davin
Institution: Lehigh University , Institute of Technology of Cambodia
EPA Project Officer: Nolt-Helms, Cynthia
Project Period: August 15, 2010 through August 14, 2011
Project Amount: $10,000
RFA: P3 Awards: A National Student Design Competition for Sustainability Focusing on People, Prosperity and the Planet (2010)
Research Category: Pollution Prevention/Sustainable Development , P3 Challenge Area - Materials & Chemistry , P3 Challenge Area - Water


An appalling degree of arsenic contamination in groundwater has affected more than a million people in wide region of Mekong delta flood plain in Cambodia. Arsenic is by far the most toxic species of all naturally occurring groundwater contaminants and disposal of removed arsenic is as important as its removal from ground water. The general objective is to provide arsenic-safe water to villagers while providing ecologically safe containment of arsenic-laden sludge.


This project proposes a sustainable solution for arsenic crisis in a remote location of Cambodia using regenerable adsorbents, decreasing volume of arsenic-wastes significantly through regeneration process and containing arsenic-sludge in a well-aerated coarse sand filter with minimum leaching potential.

Expected Results:

The project will provide arsenic-safe water to nearly 500 arsenic-affected villagers. Reuse of adsorbent media through regeneration will allow significant reduction in volume of arsenic-sludge which will be contained in an ecologically safe manner without further possibility of arsenic leaching into soil or groundwater.

Supplemental Keywords:

Arsenic-selective sorbent, Regeneration,

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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

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