Research Article
Dec 1971
Activated Sludge ATP: Effects of Environmental Stress
Authors: Patrick L. Brezonik and James W. PattersonAuthor Affiliations
Publication: Journal of the Sanitary Engineering Division
Volume 97, Issue 6
Abstract
A series of experiments were performed with laboratory scale activated sludge units to determine the effects of various environmental conditions on the ATP content of activated sludge mixed liquor. ATP was determined by the firefly luciferin-luciferase reaction. The effect of abrupt temperature changes up to about 37°C was small. Anoxia reduced the ATP content by about 40%, but an immediate return to the original level was noted when sludge was reaerated. Complex patterns of ATP response were found for substrate (milk solids) additions and for additions of various inorganic toxicants. ATP responses to toxic heavy metals are rapid and sensitive, and ATP appears to be a good measure of sludge viability and activity.
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Published In
Journal of the Sanitary Engineering Division
Volume 97 • Issue 6 • December 1971
Pages: 813 - 824
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Dec 1971
Published online: Feb 12, 2021
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Patrick L. Brezonik
Assoc. Prof., Environmental Chemistry, Dept. of Environmental Engrg., Univ. of Florida, Gainesville, Fla.
James W. Patterson
Asst. Prof., Environmental Engrg., Dept. of Environmental Engrg., Illinois Inst. of Technology, Chicago, Ill.
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