Science Inventory

ZEOLITE PERFORMANCE AS AN ANION EXCHANGER FOR ARSENIC SEQUESTRATION IN WATER

Citation:

Shevade, S. AND R Ford*. ZEOLITE PERFORMANCE AS AN ANION EXCHANGER FOR ARSENIC SEQUESTRATION IN WATER. Chapter 22, O'Day, Vlassopoulos, Meng, and Benning (ed.), Advances in Arsenic Research. American Chemical Society, Washington, DC, ACS Symp Series(915):306-320, (2005).

Impact/Purpose:

To inform the public

Description:

Zeolites are well known for their use in ion exchange and acid catalysis reactions. The use of zeolites in anion or ligand exchange reactions is less studied. The NH4+ form of zeolite Y (NY6, Faujasite) has been tested in this work to evaluate its performance for arsenic removal from water in continuous flow reactions. Zeolite NY6 performed well for arsenate removal under simple and complex inlet chemistries. The results from column studies indicate that contact time and zeolite particle size can be varied to optimize both the physical and chemical performance of the continuous flow process. Evaluation of a physical mixture of NY6 and the NH4+ form of zeolite ZSM-5 indicate the potential for treatment of complex contaminant streams containing As, Cd, Pb and MTBE. Overall, these experimental results indicate that synthetic zeolites offer significant flexibility in designing continuous flow treatment processes for the removal of inorganic and organic contaminants in aqueous waste streams.

URLs/Downloads:

Advances in Arsenic Research   Exit

Record Details:

Record Type: DOCUMENT (BOOK CHAPTER)
Product Published Date: 10/31/2005
Record Last Revised: 07/24/2009
OMB Category: Other
Record ID: 103955

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL RISK MANAGEMENT RESEARCH LABORATORY

GROUND WATER AND ECOSYSTEMS RESTORATION DIVISION

TECHNICAL AND ADMINISTRATIVE SUPPORT STAFF