Liquid purification or separation – Processes – Treatment by living organism
Patent
1987-12-21
1989-03-14
Castel, Benoit
Liquid purification or separation
Processes
Treatment by living organism
210610, 210612, 210617, 210631, 210650, 210652, C02F 330
Patent
active
048122378
ABSTRACT:
A closed water purification and recycle system processes domestic wastewater to produce potable water for cooking, drinking and dishwashing and water suitable for general household use, such as washing clothes and personal hygiene. The system consists of septic tanks, a biological sand filter, an ultrafilter, a disinfection unit, pumps, valves, water quality and quantity sensors to monitor and control the process. The system also includes an incinerator toilet to eliminate the need for toilet flush water. Water for cooking, drinking and dishwashing is produced by a still using some of the recycled water for feed. The quality of the recycled water is monitored to assure the product water is suitable for the intended uses. Water thus produced is stored until reused. The system will be automatically shut down if the final product water quality does not meet specifications. Blowdown containing concentrated salts from the still is evaporated and incinerated in the incinerator toilet to maintain a satisfactory concentration of salts in the recycled water. The system equipment is designed and sized to allow unattended operation between inspections, scheduled periodically, at which time routine maintenance is performed and makeup water is added to the system to replace water lost to evaporation.
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Cawley William E.
Mercer Basil W.
Bio Tech, Inc.
Castel Benoit
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