Waste water treatment method employing a continuous respiration

Details Waste water treatment method employing a continuous respiration Waste water treatment method employing a continuous respiration

1994-11-14

1996-12-17

Upton, Christopher

Liquid purification or separation

Processes

Treatment by living organism

210620, 210103, 210143, C02F 312

Patent

active

055850014

ABSTRACT:
Disclosed herein is a method for treating a waste water comprising a high concentration of organic substances in a stable and controllable manner and an apparatus therefor.
The method comprises the steps of determining continuously a dissolved oxygen(DO) within a reactor in which the waste water is biologically degraded by using a continous respiration meter; determining a relationship between a loading rate and a respiration rate by using the DO value transmitted as an electrical signal from the respiration meter, establishing a set loading rate which is optimum for the reactor, and controlling the waste water input flow rate into the reactor in order to maintain a loading rate of the influent waste water is to be close to the set loading rate. The apparatus comprises a continous respiration meter for detecting the DO within a reactor and a control part for determining a relationship between a loading rate and a respiration rate and controlling the waste water input flow rate into the reactor.

REFERENCES:
patent: 4329232 (1982-05-01), McKenna
patent: 4620930 (1986-11-01), McDowell
patent: 4783750 (1988-11-01), Smith
patent: 5106511 (1992-04-01), Kodukula
patent: 5296147 (1994-03-01), Koster et al.

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