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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
Subject(s):Water resource development--Illinois
Water resources development
Waste water
Wastewater treatment
Amrnonia removal
Ion exchange
Heavy rnetals
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.
Issue Date:1976-08
Publisher:University of Illinois at Urbana-Champaign. Water Resources Center
Genre:Report (Grant or Annual)
Sponsor:U.S. Department of the Interior
U.S. Geological Survey
Rights Information:Copyright 1976 held by Michael J. Semmens
Date Available in IDEALS:2016-06-20

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