Method utilizing plug flow for separating solids from liquid

Details Method utilizing plug flow for separating solids from liquid Method utilizing plug flow for separating solids from liquid

1974-09-16

1978-06-20

Granger, Theodore A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 65, B01D 3100

Patent

active

040960609

ABSTRACT:
A method utilizing the phenomenon of plug flow for removing solids from liquid. Liquid with suspended solids, such as paper mill effluent, is passed through a conduit under conditions of plug flow. This produces a moving plug containing the suspended particles, with the liquid along the wall of the conduit being relatively free of suspended particles. The wall is made liquid permeable, and liquid is forced through the wall as the liquid moves along the conduit. Preferably the wall is made relatively impermeable to a substantial portion of the suspended solids to assure that relatively pure liquid flows through the wall, leaving the solids concentrated in the remaining liquid flowing through the conduit. Liquid with concentrated solids is recirculated.

REFERENCES:
patent: 3536611 (1970-10-01), Filippi et al.
patent: 3558481 (1971-01-01), Furgerson
patent: 3630378 (1971-12-01), Bauman
patent: 3722694 (1973-03-01), Agranat
patent: 3758405 (1973-09-01), Fremont
patent: 3786924 (1974-01-01), Huffman
patent: 3827565 (1974-08-01), Matsumura
Journal, Filtration & Separation, Nov./Dec. 1971, pp. 715-718.
Lamb, Sir Horace, Hydrodynamics, Dover Publications, New York, N.Y., 1879-1932.

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