Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1992-04-01
1993-05-04
Hruskoci, Peter
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210708, 210709, 210743, 210745, 210748, 210776, 210804, C02F 124
Patent
active
052079210
ABSTRACT:
A process and system for continuously recovering industrial waste water characterized as divergent hydro-lipophilic waste streams for industrial reuses to enhance water conservation and to reduce environmental pollution is disclosed. The process and system are especially suited for reclaiming animal and food processing discharge water having blood, fat, oil and grease contaminants in the water, for industrial reuse in evaporative condensers, hydraulic system cooling and equipment, non-food contact vehicles and plant or factory area wash-downs. The process can operate continuously for supplying water for such industrial uses, but also includes an automatic shut down if the incoming influent to be treated is too turbid. The process includes chemical pH adjustment, separation of fat, oil and grease (FOG) from the influent and particulate removal in polishing filters. Sensors are used to monitor the pH and component internal water pressures throughout. An air sparging coil and three individual tanks separate the FOG and water in three stages. The polishing filters then remove particulates (including the heme molecules). Finally, the processed water is treated with ultraviolet disinfection to kill microfloura and microfauna bacteria. The water is then ready for industrial reuse in evaporative condensers (cooling towers) water cooled hydraulic systems, vacuum pump systems, wash down of docks, recovery areas or vehicles and outdoor reuse.
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