Liquid purification or separation – With means to add treating material – Chromatography
Patent
1976-12-22
1979-05-08
Sever, Frank
Liquid purification or separation
With means to add treating material
Chromatography
62 66, 62533, 210241, B01D 1700, F25C 100
Patent
active
041535553
ABSTRACT:
An improved method and apparatus are disclosed herein for cryogenically cleaning and restoring sandy beaches which have become contaminated by oil spills. In the method, a mixture of particulate, pulverized and recycled rubber and wood fines is applied to the contaminated area for absorbing the oil prior to cryogenic treatment. The absorption of the oil by the particulate rubber and wood enhances the solidification during the cryogenic treatment. In the apparatus, a hopper is mounted to a beach cleaning vehicle forwardly of a liquid cryogen spray head. The hopper is constructed to receive and discharge particulate absorbent before the contaminated area is contacted by the liquid cryogen.
REFERENCES:
patent: 3614873 (1971-10-01), Cole et al.
patent: 3800950 (1974-04-01), Hess et al.
patent: 3888766 (1975-06-01), De Young
patent: 3962083 (1976-06-01), Goldman
patent: 4043140 (1977-08-01), Wendt et al.
Acker Jan R.
Braton Norman R.
Koutsky James A.
Wendt Robert F.
Geren Gerald S.
Sever Frank
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