C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
71/18, 362/44.5
C02F 1/78 (2006.01) C02F 3/24 (2006.01) C02F 9/00 (2006.01) C02F 11/00 (2006.01) C02F 11/12 (2006.01) C05F 7/00 (2006.01)
Patent
CA 1145866
ABSTRACT This sewage and waste water treatment system introduces a different approach to the usual biological digestion of organic solids and sterilization thereof in the effluent. -It proceeds from the concept that all sediments and suspended solids to 20 microns or less are removed immediately and continuously from the in-flow, and the almost suspended solid- free flow therefrom is treated in a unique manner with ozone so as to react chemically with the dissolved and remaining suspended solids by oxidation to produce precipitations, gasifications and sterilization which in turn are removed from the system immediately and continuously to 5 microns or less, thus greatly reducing the ozone requirements for the oxidation reactions. The liquid effluent discharged from this process is a clear and sterilized liquid having no contaminants harmful to biological life. The system also includes the treatment of the removed solids from sewage with ozone to produce a completely deod- orized and sterile product without the requirement of substan- tial chemical oxidation reactions, thereby reducing the ozone demand, and further treatment of the solids in such a manner so as to produce useful dry commercial fertilizers containing a maximum amount of non-pathogenic soil microorganisms required to sustain plant life. The steps herein are performed largely by existing equip- ment of proven ability with a minimum of moving parts. The ozone treating method can be applied to liquids and liquids containing a substantial amount of suspended solids in compara- tively large and varied particulated sizes.
348657
Osler Hoskin & Harcourt Llp
Ozodyne Inc.
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