초록 ▼

A method of handling grey water and optionally at least a portion of the black water for disposal from vehicles such as boats, recreational vehicles or rural dwellings such as cottages, camps and the like, not having direct access to sewer systems, involves the treatment of such waste water with ozo

A method of handling grey water and optionally at least a portion of the black water for disposal from vehicles such as boats, recreational vehicles or rural dwellings such as cottages, camps and the like, not having direct access to sewer systems, involves the treatment of such waste water with ozone. A batch system is used whereby a predetermined quantity of water to be treated is captured in a treatment tank. A circulating pump withdraws water from the tank and pushes the water along a treatment conduit, the conduit containing an ozone/water mixer and returns the water to the treatment tank. The treatment conduit has a discharge valve that is maintained in a closed position for a selected period of time. Ozone is fed to the ozone/water mixer from an ozone generator which is advantageously fitted with an air pump to pressurize the feed gas.

대표청구항 ▼

A method of handling grey water and optionally at least a portion of the black water for disposal from vehicles such as boats, recreational vehicles or rural dwellings such as cottages, camps and the like, not having direct access to sewer systems, involves the treatment of such waste water with ozo

A method of handling grey water and optionally at least a portion of the black water for disposal from vehicles such as boats, recreational vehicles or rural dwellings such as cottages, camps and the like, not having direct access to sewer systems, involves the treatment of such waste water with ozone. A batch system is used whereby a predetermined quantity of water to be treated is captured in a treatment tank. A circulating pump withdraws water from the tank and pushes the water along a treatment conduit, the conduit containing an ozone/water mixer and returns the water to the treatment tank. The treatment conduit has a discharge valve that is maintained in a closed position for a selected period of time. Ozone is fed to the ozone/water mixer from an ozone generator which is advantageously fitted with an air pump to pressurize the feed gas. id spent stripping stream are condensed. 7. A method in accordance with claim 4 wherein said circulating hydrocarbon stream comprises isoparaffin and heteroatom-containing compound. 8. A method in accordance with claim 1 further characterized to include the steps of: blocking the introduction of said stripping stream to said contacting zone in step (d); reintroducing said hydrocarbon stream to said contacting zone; and withdrawing said effluent stream from said contacting zone. 9. A method in accordance with claim 1 wherein said hetero atom-containing compound contains sulfur. 10. A method in accordance with claim 1 wherein said hetero atom-containing compound contains nitrogen. 11. A method in accordance with claim 1 wherein said heteroatom-containing compound contains oxygen. 12. A method in accordance with claim 1 wherein said heteroatom-containing compound is a compound selected from the group consisting of acetonitrile, acetone, and combinations thereof. 13. A method in accordance with claim 1 wherein said heteroatom-containing compound is acetonitrile. 14. A method in accordance with claim 1 wherein said heteroatom-containing compound is acetone. 15. A method in accordance with claim 1 wherein said hydrocarbon stream is further characterized to comprise a compound selected from the group consisting of an olefin, an isoparaffin, and combinations thereof. 16. A method in accordance with claim 1 wherein said isoparaffin of said stripping stream contains in the range of from 3 to 5 carbon atoms per molecule, and mixtures thereof. 17. A method of regenerating a hydrocarbon purification system suitable for removing water and at least one heteroatom-containing compound from a hydrocarbon stream, said method for regenerating comprising: (a) introducing a stripping stream comprising an isoparaffin into the contacting zone of a treatment system containing (1) a water adsorbent comprising a molecular sieve having an average pore diameter in the range of from about 3 to about 4 .ANG., which contains water, and (2) a separate, heteroatom-containing compound adsorbent comprising an alumina and a zeolite which contains a heteroatom-containing compound; such that said stripping stream contacts said water adsorbent prior to contacting said heteroatom-containing compound adsorbent; and (b) withdrawing a spent stripping stream comprising isoparaffin, heteroatom-containing compound and water from said contacting zone. 18. A method in accordance with claim 17 wherein said stripping stream contacts said water adsorbent and said heteroatom-containing compound adsorbent at a temperature in the range of from about 350° F. to about 500° F. 19. A method in accordance with claim 17 wherein said stripping stream contacts said water adsorbent and said heteroatom-containing compound adsorbent for a time period in the range of from about 0.2 to about 2 hours. 20. A method in accordance with claim 17 further characterized to include the steps of: (c) cooling said spent stripping stream to form a cooled spent stripping stream; (d) introducing said cooled spent stripping stream to a settler for separation into a hydrocarbon phase and a water phase; (e) removing a portion of said hydrocarbon phase from said settler to form a circulating hydrocarbon stream; (f) mixing said circulating hydrocarbon stream with water to form a hydrocarbon/water mixture; (g) introducing said hydrocarbon/water mixture to said settler for separation into said hydrocarbon phase and said water phase; (h) removing a portion of said hydrocarbon phase from said settler to form a recycle isoparaffin stream, wherein said recycle isoparaffin stream contains less water and less heteroatom-containing compound as compared to said cooled spent stripping stream; and (i) using at least a portion of said recycle isoparaffin stream as at least a portion of said stripping stream. 21. A method in accordance with claim 20 further characterized to include: removing at l