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Review
. 2006 Sep;24(3):267-72.

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

Ana María Sancha  1
Affiliations
Review

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

Ana María Sancha. J Health Popul Nutr. 2006 Sep.

Abstract

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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Figures

Fig. 1.
Fig. 1.
Name and location of water-treatment plants for removal of arsenic, Chile
Fig. 2.
Fig. 2.
General schematic Chillean arsenic-removal treatment process: (a) Surface water and (b) Groundwater
See this image and copyright information in PMC

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References

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