Method for lime stabilization of wastewater treatment plant slud

Details Method for lime stabilization of wastewater treatment plant slud Method for lime stabilization of wastewater treatment plant slud

1980-07-14

1981-12-22

Hruskoci, Peter A.

Liquid purification or separation

Processes

Chemical treatment

210738, 210751, 210769, 71 12, 110346, C02F 1114

Patent

active

043069789

ABSTRACT:
A method for the lime stabilization of wastewater sludge, includes the steps of dewatering sludge so as to produce a sludge cake containing from about 10 to 60% by weight of dry solids and rapidly and intimately mixing and reacting the sludge cake with calcium oxide so as to produce stabilized sludge pellets. An apparatus for performing the process is also provided.

REFERENCES:
patent: 918744 (1909-04-01), Fryklind
patent: 2026969 (1936-01-01), Flynn
patent: 2723954 (1955-11-01), Young
patent: 3476683 (1969-11-01), Liljegren
patent: 3941357 (1976-03-01), Wurtz
patent: 4012277 (1978-07-01), Wall
patent: 4076620 (1978-02-01), Opferkuch et al.
patent: 4142971 (1979-03-01), LeFur et al.
patent: 4226712 (1980-10-01), Kamei
patent: 4270279 (1981-06-01), Roediger

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