Waste water treatment equipment

Details Waste water treatment equipment Waste water treatment equipment

1992-01-29

1993-08-31

Hruskoci, Peter

Liquid purification or separation

Automatic control

Thermal

210151, 210178, 210199, 210202, 210187, 210206, 210319, 210320, 210258, C02F 302, C02F 1102

Patent

active

052405974

ABSTRACT:
A waste water treatment equipment adapted to treat, with high removal performance at all times, waste water drained from various sources such as sewage containing solid wastes left after crushing garbage sent out from cooking room, home kitchen, etc. The equipment is provided with a pretreatment device in which chemical is supplied to a treatment tank so as to accellerate decomposition of the solid waste left after crushing garbage by fermentation and putrefaction, and digestion of the solid wastes and water pollution materials by anaerobic bacteria. The sewage pretreated in the pretreatment device is introduced in a sewage treatment device in which sewage is caused to flow in a plurality of sewage treament tanks sequentially in order, and the pollution materials such as BOD, COD, etc. in the sewage are subject to oxidation decomposition and removal by activated sludge process beds of specific configuration in which arrangement of activated sludge varies for each tank. A settling tank and a disinfecting tank are further provided.

REFERENCES:
patent: 3260368 (1966-07-01), Wagner et al.
patent: 3607737 (1971-09-01), Gamer
patent: 3875056 (1975-04-01), Inglis
patent: 4002561 (1977-01-01), Traverse
patent: 4608157 (1986-08-01), Graves
patent: 4678567 (1987-07-01), Ueda
patent: 4680111 (1987-07-01), Ueda
patent: 4927530 (1990-05-01), Ueda
patent: 4940539 (1990-07-01), Weber

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