Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1977-09-06
1979-01-30
Lander, Ferris H.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 73W, B01D 1500, C02B 114
Patent
active
041371623
ABSTRACT:
A method for treating waste waters to remove oils and/or COD therefrom, which comprises accomodating solid porous packing pieces and activated carbon particles in a container, the porous packing pieces forming a stationary porous packed bed, the average pore diameter of the porous packing pieces being 1.5 to 8 times the average diameter of the activated carbon particles; introducing a waste water, if desired, together with an oxygen-containing gas and/or an oxidizing gas, from the bottom portion of the container to fluidize the activated carbon particles within the pores of the porous packing pieces and in spaces among the adjoining porous packing pieces and simultaneously to contact the waste water with the activated carbon particles; maintaining the upper level of the fluidized bed of the activated carbon particles at least 5 cm below the upper level of the porous packed bed; and withdrawing the waste water which has been so contacted from the top portion of the container.
REFERENCES:
patent: 2448135 (1948-08-01), Becker
patent: 2533026 (1950-12-01), Matheson
patent: 2602019 (1952-07-01), Odell
patent: 4012210 (1977-03-01), Morris
Kanda Takeshi
Mohri Michihiro
Takeda Hiroo
Tsunemi Masaaki
Uchiumi Tadashi
Lander Ferris H.
Nippon Oil Company Ltd.
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