Record Display for the EPA National Library Catalog
RECORD NUMBER: 76 OF 312
|OLS Field Name||OLS Field Data|
|Main Title||Design optimization of the chlorination process /|
|Author||Finlayson, B. J. ; Nelson, J. L. ; Hansen., R. J.|
|CORP Author||California State Dept. of Fish and Game, Rancho Cordova. Water Pollution Control Lab.;Municipal Environmental Research Lab., Cincinnati, OH.|
|Publisher||Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,|
|Report Number||EPA/600/2-80/133; EPA-S-803459|
|Subjects||Chlorine--Physiological effect. ; Fishes--Effect of water pollution on. ; Aquatic animals--Effect of water pollution on. ; Chlorination--Physiological effect|
|Additional Subjects||Toxicology ; Chlorine ; Disinfection ; Water pollution ; California ; Water quality ; Design criteria ; Fishes ; Ammonia ; Coliform bacteria ; Waste treatment ; Lethal dosage ; Concentration(Composition) ; Fathead minnows ; Toxic substances ; Water pollution effects(Animals)|
|Collation||125 pages : illustrations, charts ; 28 cm.|
The California Department of Health Services in cooperation with the California Department of Fish and Game developed and implemented a chlorine optimization study of eight wastewater treatment plants in northern California. Two mobile units were constructed for the project: a pilot chlorination plant and a mobile toxicity testing and water quality laboratory. The pilot chlorination plant tested several optimized chlorination design criteria against existing wastewater treatment plant chlorination systems. The mobile laboratory evaluated the toxicity of the optimized and existing chlorinated effluents. The toxicity associated with the existing unchlorinated and dechlorinated effluents increased with un-ionized ammonia concentrations. Most of the toxicity associated with the unchlorinated and dechlorinated effluents, however, was the result of an artificial increase in pH created by a toxicity test design problem. The optimized chlorinated effluents, with one exception, had lower and more stable chlorine residuals than did the existing chlorinated effluents and hence, were generally less toxic. The toxicity of all effluents investigated increased proportionately with increased chlorine residual.
"California Department of Fish and Game, Water Pollution Control Laboratory." "Wastewater Research Division, Municipal Environmental Research Laboratory." "August 1980." Includes bibliographical references (pages 49-50). "Grant no. S803459." Microfiche.
v. 2. Comparison of acute toxicity of chlorinated effluents from optimized and existing facilities.