Process for protection of biological nitrification systems

Details Process for protection of biological nitrification systems Process for protection of biological nitrification systems

1986-03-20

1987-09-15

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210605, 210616, 210630, 210903, 210610, C02F 330, C02F 308

Patent

active

046938273

ABSTRACT:
A method for accelerating the startup of biological nitrification systems for wastewater treatment and preventing or reducing the effects of toxic or inhibitory materials or excursions of pH, temperature or dissolved oxygen upon nitrifying organisms. A rapidly metabolized soluble or miscible organic material containing little or no nitrogen is added to the carbon-consuming step of the process. Heterotrophic organisms consume the added material together with soluble ammonia to generate additional organisms. The soluble ammonia concentration in the wastewater is reduced to a non-toxic, less toxic, or less inhibitory level.

REFERENCES:
patent: 3764523 (1973-10-01), Stankewich, Jr.
patent: 3957632 (1976-05-01), Knopp et al.
patent: 4160724 (1979-07-01), Laughton
patent: 4183809 (1980-01-01), Klapwijk et al.
patent: 4338196 (1982-07-01), Mayerle
patent: 4487697 (1984-12-01), Bohnke et al.
patent: 4537682 (1985-08-01), Wong-Chong

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