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Title: Method of removing arsenic and other anionic contaminants from contaminated water using enhanced coagulation

Abstract

An improved water decontamination process comprising contacting water containing anionic contaminants with an enhanced coagulant to form an enhanced floc, which more efficiently binds anionic species (e.g., arsenate, arsenite, chromate, fluoride, selenate, and borate, and combinations thereof) predominantly through the formation of surface complexes. The enhanced coagulant comprises a trivalent metal cation coagulant (e.g., ferric chloride or aluminum sulfate) mixed with a divalent metal cation modifier (e.g., copper sulfate or zinc sulfate).

Inventors:
; ; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175997
Patent Number(s):
7,138,063
Application Number:
11/351,365
Assignee:
Sandia Corporation
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Teter, David M., Brady, Patrick V., Krumhansl, James L., and Khandaker, Nadim R. Method of removing arsenic and other anionic contaminants from contaminated water using enhanced coagulation. United States: N. p., 2006. Web.
Teter, David M., Brady, Patrick V., Krumhansl, James L., & Khandaker, Nadim R. Method of removing arsenic and other anionic contaminants from contaminated water using enhanced coagulation. United States.
Teter, David M., Brady, Patrick V., Krumhansl, James L., and Khandaker, Nadim R. Tue . "Method of removing arsenic and other anionic contaminants from contaminated water using enhanced coagulation". United States. https://www.osti.gov/servlets/purl/1175997.
@article{osti_1175997,
title = {Method of removing arsenic and other anionic contaminants from contaminated water using enhanced coagulation},
author = {Teter, David M. and Brady, Patrick V. and Krumhansl, James L. and Khandaker, Nadim R.},
abstractNote = {An improved water decontamination process comprising contacting water containing anionic contaminants with an enhanced coagulant to form an enhanced floc, which more efficiently binds anionic species (e.g., arsenate, arsenite, chromate, fluoride, selenate, and borate, and combinations thereof) predominantly through the formation of surface complexes. The enhanced coagulant comprises a trivalent metal cation coagulant (e.g., ferric chloride or aluminum sulfate) mixed with a divalent metal cation modifier (e.g., copper sulfate or zinc sulfate).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {11}
}

Patent:

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