METHOD FOR RECOVERING A DISPOSAL TRENCH WITH A BIOMAT SLIME, AND METHOD FOR OPERATING A WASTE TREATMENT VESSEL

摘要

A soil-based disposal trench that has failed from a biomat slime is recovered by adding (110) a facultative anaerobic bacteria to an effluent that flows into the disposal trench. The facultative anaerobic bacteria consumes the biomat slime and, in one embodiment, supplants (512) a strictly aerobic bacteria in the soil that converts nitrites to nitrates. As a result, the facultative anaerobic bacteria interrupt the conventional process of nitrification, changing the nitrites to nitrogen gas.