Method for the removal of nutrients containing carbon, nitrogen

Details Method for the removal of nutrients containing carbon, nitrogen Method for the removal of nutrients containing carbon, nitrogen

1995-04-13

1997-02-25

Wyse, Thomas G.

Liquid purification or separation

Processes

Treatment by living organism

210615, 210630, 210903, 210906, 210921, C02F 330

Patent

active

056056290

ABSTRACT:
The method is of the type wherein the raw or untreated water to be treated is made to circulate in cells or biofilters with submerged filtering beds working anaerobically and then aerobically or vice versa. A treatment module is used comprising at least two cells or biofilters in series (for example one biofilter under anaerobic conditions and one to five biofilters under aerobic conditions) in making phases of anaerobiosis and then aerobiosis alternate cyclically. The entry of flow to be treated takes place always in the anaerobic cell. Advantageously, each phase of the cycle is separated from another by a hold phase comprising a halt in the supply of water to be treated.

REFERENCES:
patent: 4253966 (1981-03-01), Lebesgue et al.
patent: 5147547 (1992-09-01), Savall et al.
patent: 5482630 (1996-01-01), Lee et al.

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