Method for removing polychlorinated biphenyl compounds from wate

Details Method for removing polychlorinated biphenyl compounds from wate Method for removing polychlorinated biphenyl compounds from wate

1986-04-30

1988-02-23

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

134 7, 210909, C02F 128, B08B 700

Patent

active

047269057

ABSTRACT:
A method for removing polychlorinated biphenyl compounds from water is disclosed. The method encompasses the use of a cyclodextrin polymer made by forming a water-insoluble cross-linked cyclodextrin polymer to treat water contaminated with the polychlorinated biphenyl compounds. Both a batch and a continuous method are disclosed. Both methods operate at ambient conditions. Additionally, a method to absorb the polychlorinated biphenyl is disclosed.

REFERENCES:
patent: 3472835 (1969-10-01), Buckler et al.
patent: 4274985 (1981-06-01), Szejtli et al.
patent: 4276179 (1981-06-01), Soehngen
patent: 4357468 (1982-11-01), Szejtli et al.
Die Starke Nr. 5/1969--Properties of Cyclodextrins--Part III--N. Wiedenhof--pp. 119-123.
Die Starke Nr. 6/1969--Properties of Cyclodextrins--Part IV--N. Wiedenhof--pp. 163-166.
Die Starke Nr. 4/1971--Properties of Cyclodextrins--Part V--N. Wiedenhof--pp. 129-132.
M. G. Pepe--Adhesion-Binding of 2,2',4,4',5,5'-Hexachlorobiphenyl to Glass and Plastic: A Possible Source of Error for PCB Analysis--Bull. Environm. Contam. Toxicol. 25, 936-940, (1980).
J. Lawrence--Adsorption of Polychlorinated Biphenyls from Aqueous Solutions and Sewage--Environmental Science & Technology--vol. 10, No. 4, Apr. 1976--pp. 381-383.
D. J. Wildish--Flux of Aroclor 1254 Between Estuarine Sediments and Water, Bull. Environm. Contam. Toxicol. 24, 20-26, (1980).
Fisheries Research Board of Canada--Manuscript Report Series No. 1083--Polychlorinated Biphenyls: Determination by Optical Methods, Solubility and Solubilization in Water, Preliminary Results on Toxicity to Salmon--V. Zitko--Mar. 1970.

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