Methods of removing oil and metal ions from oily wastewater

Details Methods of removing oil and metal ions from oily wastewater Methods of removing oil and metal ions from oily wastewater

1992-06-05

1993-10-26

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210728, 210730, 210912, 210913, 210914, 252338, 252358, 252180, C02F 156

Patent

active

052563049

ABSTRACT:
Methods are disclosed for removing oil and metal ions from oily wastewaters. Polymeric tannin amine compounds are added to the oily wastewater to demulsify the oil, and flocculate the metal ions.

REFERENCES:
patent: Re29908 (1979-02-01), Fowler et al.
patent: 4558080 (1985-12-01), Quamme et al.
patent: 4758353 (1988-07-01), Spence et al.
patent: 4775744 (1988-10-01), Schilling et al.
patent: 4781839 (1988-11-01), Kelly et al.
patent: 4781840 (1988-11-01), Schilling et al.

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