Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Method of arsenic removal from water

Patent ·
OSTI ID:1016017
 [1]
  1. El Cerrito, CA
+ Show Author Affiliations
A method for low-cost arsenic removal from drinking water using chemically prepared bottom ash pre-treated with ferrous sulfate and then sodium hydroxide. Deposits on the surface of particles of bottom ash form of activated iron adsorbent with a high affinity for arsenic. In laboratory tests, a miniscule 5 grams of pre-treated bottom ash was sufficient to remove the arsenic from 2 liters of 2400 ppb (parts per billion) arsenic-laden water to a level below 50 ppb (the present United States Environmental Protection Agency limit). By increasing the amount of pre-treated bottom ash, even lower levels of post-treatment arsenic are expected. It is further expected that this invention supplies a very low-cost solution to arsenic poisoning for large population segments.
Research Organization:
The Regents of the University of California (Oakland, CA)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC03-76SF00098
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Number(s):
7,820,052
Application Number:
12/467,927
OSTI ID:
1016017
Country of Publication:
United States
Language:
English

References (5)

Reducing Sb-leaching from municipal solid waste incinerator bottom ash by addition of sorbent minerals journal June 1998
Removal of Pollutants from Wastewater by coal Bottom ash journal September 2002
Corrosion-Resistant Linings and Coatings patent January 2001
Removal of Arsenic in Drinking Water by Iron Oxide-Coated Sand and Ferrihydrite — Batch Studies journal February 2001
Removal of Arsenic from Ground Water by Iron Oxide-Coated Sand journal August 1996

Similar Records

Treated bottom ash medium and method of arsenic removal from drinking water
Patent · Tue Jun 09 00:00:00 EDT 2009 · OSTI ID:986751
Design of a rural water provision system to decrease arsenic exposure in Bangladesh
Thesis/Dissertation · Thu Jan 08 23:00:00 EST 2009 · OSTI ID:946594
Design Strategies and Preliminary Prototype for a Low-Cost Arsenic Removal System for Rural Bangladesh
Technical Report · Mon Sep 14 00:00:00 EDT 2009 · OSTI ID:972644

Related Subjects