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Response Of A Nitrifying Biofilm To Copper, Denise Moldroski Mott
Response Of A Nitrifying Biofilm To Copper, Denise Moldroski Mott
Masters Theses
In pure cultures of Nitrosomonas, copper is known to cause a stimulation of nitrification at low levels (≤ 0.03 mg Cu+2/1) and an inhibition affect at higher levels (≥ 0.05 mg Cu+2/1). Nitrifying activated sludges are much more tolerant of copper showing only 75% inhibition at 150mg Cu+2/1. The purpose of this paper was to determine the copper sensitivity of a nitrifying biofilm grown in a continuous flow trickling filter system.
A continuous flow trickling filter system was built using limestone chips for the biofilm substrate. The biofilm was established from secondary effluent. …