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Review of coagulation technology for removal of arsenic: case of Chile

Sancha, A.María.

Journal of Health Population and Nutrition 24(3): 267-272

2006

ISSN/ISBN: 1606-0997
PMID: 17366767
Document Number: 595408
Coagulation technology has been used since 1970 in northern Chile for removing arsenic from drinking-water. This experience suggests that coagulation is an effective technology for the removal of arsenic. It is currently possible to reduce arsenic from 400 microg/L to 10 microg/L at a rate of 500 L/sec, assuming pH, oxidizing and coagulation agents are strictly controlled. The Chilean experience with the removal of arsenic demonstrates that the water matrix dictates the selection of the arsenic-removal process. This paper presents a summary of the process, concepts, and operational considerations for the use of coagulation technology for removal of arsenic in Chile.

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