Waste water treatment apparatus and waste water treatment...

Details Waste water treatment apparatus and waste water treatment... Waste water treatment apparatus and waste water treatment...

2006-09-12

2009-08-18

Prince, Fred (Department: 1797)

Liquid purification or separation

Processes

Treatment by living organism

C210S623000, C210S631000, C210S259000, C210S903000

Reexamination Certificate

active

07575684

ABSTRACT:
In waste water treatment apparatus and method, a mineral mixing tank receives biologically treated water, sludge which is generated by biological treatment, and mineral sludge which contains calcium and so on from a settling tank. A mineral pump returns the sludge and the treated water from the mineral mixing tank to a raw water tank. An air-lift pump circulates treatment water between a reaeration tank having a semi-anaerobic section and a denitrification tank. In circulation of the treatment water between the reaeration tank and the denitrification tank, the semi-anaerobic section alleviates the change of environment for microorganisms and thereby realizes the environment easy to propagate for the microorganisms. The air-lift pump allows the agitation with low energy consumption even when the microorganisms are cultured up to a high concentration thereof.

REFERENCES:
patent: 5578214 (1996-11-01), Yamasaki et al.
patent: 6261456 (2001-07-01), Yamasaki et al.
patent: 6863817 (2005-03-01), Liu et al.
patent: 11-000693 (1999-01-01), None
patent: 3095620 (2000-08-01), None
patent: 3467671 (2003-09-01), None
patent: 2003-334548 (2003-11-01), None
patent: 2004-121962 (2004-04-01), None
patent: 2004-321959 (2004-11-01), None

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