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Arsenic filter

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[[Image:arsenic removal two.jpg|thumb|right|250px|Magc-Alcan Filter (left) and Nirmal Filter (right): adsorption method. Photo: Ngai.]]

 

 

==Acknowledgements==

* [http://www.cawst.org/en/resources/pubs/category/24-fact-sheets-simplified Household Water Treatment Fact Sheets.] CAWST.

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