Nitrogen removal by tubular gel containing Nitrosomonas europaea and Paracoccus denitrificans.

AUTOR(ES)

Uemoto, H

RESUMO

A new bioreactor for the removal of nitrogen from wastewater is described which consists of a tubular polymeric gel containing Nitrosomonas europaea and Paracoccus denitrificans. The outer surface of the tube is in aerobic contact with wastewater containing ammonia, while the inside of the tube is in anaerobic contact with ethanol flowing through the tube. N. europaea oxidizes ammonia to nitrite in the gel, and then P. denitrificans reduces the nitrite to nitrogen gas in the same gel. This concept would be effective for simplifying nitrogen removal systems requiring aerobic and anaerobic operations.

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