Waste water treatment plant and process

Details Waste water treatment plant and process Waste water treatment plant and process

1989-03-21

1990-10-30

Hruskoci, Peter

Liquid purification or separation

Processes

Treatment by living organism

210623, 210104, 210138, 2101953, 210201, 210220, C02F 330

Patent

active

049667050

ABSTRACT:
A waste water treatment plant of simple design and high efficiency which is particularly adapted for use in small communities is described. The plant comprises a reaction tank and an aeration tank, inlet means to admit raw waste water continuously into the reaction tank, a first airlift pump or a penstock to transfer waste water intermittently from the reaction tank to the aeration tank to displace treated waste water therefrom through an outlet, aerators to aerate the aeration tank when the first airlift pump or penstock is inoperative, a second pump for transferring sludge and waste water from the aeration tank to the reaction tank after the first airlift pump has ceased operation and before the aerator is actuated, and control means to stop the aeration in sufficient time before actuation of the first airlift pump or penstock to allow substantial settling of the sludge in the aeration tank.

REFERENCES:
patent: 3355019 (1967-11-01), Mitchell
patent: 3400822 (1968-09-01), McKeown
patent: 3419146 (1968-12-01), Kovlovatos
patent: 3487937 (1970-01-01), Kovlovatos
patent: 3563382 (1971-02-01), Regent
patent: 3598236 (1971-08-01), Nordlander et al.
patent: 3721344 (1973-03-01), Rost
patent: 3834536 (1974-09-01), Kelsey
patent: 3883424 (1975-05-01), Stamblesky et al.

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