Liquid purification or separation – Recirculation – Of filtrate
Patent
1990-05-16
1991-12-03
Hruskoci, Peter
Liquid purification or separation
Recirculation
Of filtrate
210197, 210202, 210207, 2102212, 210260, 210266, 210275, C02F 128
Patent
active
050697838
ABSTRACT:
A liquid treatment multi-stage process and apparatus thereof for removing dissolved, colloidal, volatile, suspended and living contaminants from water, wastewater or sludge streams which includes chemical feeding, static mixing, gas pressurization, hydraulic flocculation, sedimentation, flotation, adsorption, filtration and disinfection by converting dissolved solids to insoluble forms by oxidation and chemical precipitation, coagulating and clarifying colloidal substances and microorganisms, adsorbing, filtering and disinfecting the remaining contaminants in the liquid to produce a purified liquid. A majority of insoluble suspended particles in the liquid are collected by sedimentation and flotation separation procedures and subsequently dewatered and dried and all necessary unit processes operations are incorporated into an apparatus with common walls and drive mechanisms for improving the liquid treatment efficiency, reducing secondary pollution caused by scums/sludges, and eliminating the needs of a separate mixer, flocculator, pressure vessel, aerator, adsorber, filter, clear well and chlorinator.
REFERENCES:
patent: 3171804 (1965-03-01), Rice
patent: 3307701 (1967-03-01), Krofta
patent: 3403096 (1968-09-01), Mackrle et al.
patent: 3408288 (1968-10-01), Messa
patent: 3429442 (1969-02-01), Mackrle et al.
patent: 3820659 (1974-06-01), Parlette
patent: 4022696 (1977-05-01), Krofta
patent: 4151093 (1979-04-01), Krofta
patent: 4157952 (1979-06-01), Krofta
patent: 4184967 (1980-01-01), Krofta
patent: 4303517 (1981-12-01), Love et al.
patent: 4303518 (1981-12-01), Grosshandler
patent: 4377485 (1983-03-01), Krofta
patent: 4626345 (1986-12-01), Krofta
patent: 4626346 (1986-12-01), Hall
patent: 4673494 (1987-07-01), Krofta
patent: 4673498 (1987-06-01), Swinney et al.
patent: 4673500 (1987-06-01), Hoofnagle et al.
patent: 4931175 (1990-06-01), Krofta
The U.S. Dept. of Commerce, National Technical Information Service (NTIS) Report #PB 89-158,398 (1988).
L. K. Wang and W. J. Mahoney, Part A: Wastewater Treatment Proceedings of Purdue Industrial Waste Conference, May 1989.
L. K. Wang, M. H. S. Wang and W. J. Mahoney, Part B: Waste Sludge Management, Proceedings of Purdue Industrial Waste Conference, May 1989.
Hwang Chong S.
Rhow Harold
Wang Lawrence K.
Wang Mu H. S.
Globe Environmental Protection, Inc.
Hruskoci Peter
Int'l Environmental Systems, Inc.
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