Feasibility/development study for the removal of ammonia from wastewater using biologically regenerated clinoptilolite

Semmens, Michael J.

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https://hdl.handle.net/2142/90299 Copy

Description

Title

Feasibility/development study for the removal of ammonia from wastewater using biologically regenerated clinoptilolite

Author(s)

Semmens, Michael J.

Contributor(s)

• Goodrich, Robert R., Jr.
• Wang, James T.
• Booth, Alan C.
• Seyfarth, Marian
• University of Illinois at Urbana-Champaign

Issue Date

1976-08

Keyword(s)

• Water resource development--Illinois
• Water resources development
• Wastewater
• Waste water
• Wastewater treatment
• Amrnonia removal
• Nitrification
• Ion exchange
• Heavy rnetals
• Regeneration

Geographic Coverage

Illinois (state)

Abstract

Ammonium nitrogen may be readily removed from wastewaters by means of an ammonium selective ion exchanger, clinoptilolite. The major cost in this process is the cost of regenerating the exchanger in order that it may be reused. This report presents the results of a study to develop a process in which nitrifying bacteria were employed to regenerate the exchanger. The biological regeneration process is shown feasible in both batch and column studies. The mechanism of regeneration was shown to be ion exchange followed by nitrification of the liberated ammonium. The influence of salt concentration, salt composition, particle size, dissolved oxygen, aeration tank configuration, aeration tank size on the r a t e o f regeneration were identified. The selectivity of clinoptilolite for barium, lead, copper, cadmium and zinc was measured in exchange for sodium. To further identify possible toxic effects of heavy metals toxicity studies were conducted with free and complexed copper.

Publisher

University of Illinois at Urbana-Champaign. Water Resources Center

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/90299

Sponsor(s)/Grant Number(s)

• U.S. Department of the Interior
• U.S. Geological Survey

Copyright and License Information

Copyright 1976 held by Michael J. Semmens

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