Toxicity Bioassay Using Nitrifying Bacteria

by Chikashi Sato, Polytechnic Univ, Brooklyn, United States,
Yongwoo Lee, Polytechnic Univ, Brooklyn, United States,

Document Type: Proceeding Paper

Part of: Environmental Engineering


Monitoring water quality by the use of toxicity bioassay was studied with respect to the interrelationship between nitrifying activities, ammonium and inorganic compounds. Differential inhibition of nitrifiers (i.e., Nitrosomonas sp. and Nitrobacter sp.) was examined. Nitrification inhibition in a suspended growth (Activated Sludge) reactor and a suspended/attached growth (BIO-PORR) reactor was also investigated with emphasis on the effect of shock loading of copper and chloride.

Subject Headings: Water quality | Toxicity | Bacteria | Biological processes | Water pollution | Water supply | Activated sludge | Waste treatment

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