Wastewater treatment plant专利检索-生物滞留净化污水处理水处理环境工程环境工程专利检索查询-专利查询网

Wastewater treatment plant

阅读：313发布：2022-01-01

专利汇可以提供Wastewater treatment plant专利检索，专利查询，专利分析的服务。并且A modified septic tank with a plurality of troughs arranged to be fed in parallel controls the detention time of wastewater passing through the troughs to the range of from 2 to 4 hours thereby minimizing the addition of gasses to the effluent wastewater, particularly hydrogen sulphide that is evolved in the lower portion of the tank in connection with the digestion of settled organic solids. A biological treatment unit such as those employing rotating contactors can be provided to treat the effluent from the septic tank. The substantial reduction in hydrogen sulphide in the effluent wastewater from the septic tank makes available a maximum amount of surface for the growth and maintenance of organisms oxidizing carbonaceous and/or nitrogenous pollutants on the downstream rotating contactors.，下面是Wastewater treatment plant专利的具体信息内容。

权利要求

1. A WASTEWATER TREATMENT PLANT FOR TREATING WASTEWATER CONTAINING SETTLEABLE ORGANIC SOLIDS, COMPRISING A SETTLING TANK STRUCTURE FOR CONFINING SAID WASTEWATER AT A PREDETERMINED DEPTH, SAID TANK STRUCTURE BEING DEFINED BY A PAIR OF SIDE WALLS SEPARATED BY AN END WALL AT EACH END AND A BOTTOM WALL, INLET MEANS DISPOSED ADJACENT ONE OF SAID END WALLS FOR SUPPLYING WASTEWATER TO SAID SETTLING TANK, OUTLET MEANS DISPOSED ADJACENT THE OTHER OF SAID END WALLS FOR REMOVING WASTEWATER FROM SAID SETTLING TANK, A BIOLOGICAL TREATMENT UNIT INCLUDING A PLURALITY OF ROTATABLE CONTACTORS HAVING SURFACE AREA FOR THE GROWTH AND MAINTENANCE OF AEROBIC BIOLOGICAL SLIMES, AND CONDUIT MEANS FOR SUPPLYING EFFLUENT WASTEWATER FROM SAID OUTLET MEANS OF SAID SETTLING TANK TO SAID BIOLOGICAL TREATMENT UNIT, SAID SETTLING TANK STRUCTURE INCLUDING A PLURALITY OF TROUGHS EXTENDING BETWEEN AND COMMUNICATING WITH SAID INLET AND OUTLET MEANS, SAID TROUGHS BEING ARRANGED TO RECEIVE WASTEWATER FROM SAID INLET MEANS IN PARALLEL, EACH OF SAID WASTEWATER TO SAID OUTLET MEANS IN PARALLEL, EACH OF SAID TROUGHS BEING SPACED FROM EACH OTHER AND THE SIDE WALLS OF SAID SETTLING TANK STRUCTURE AND INCLUDING PASSAGE MEANS FOR PERMITTING SOLIDS SETTLED THEREIN TO PASS INTO THE PORTION OF SAID SETTLING TANK BENEATH SAID TROUGHS AND ABOVE SAID BOTTOM WALL WHEREIN SETTLED ORGANIC SOLIDS ARE DIGESTED ANAEROBICALLY, SAID PLURALITY OF TROUGHS BEING ADAPTED TO PROVIDE SAID WASTEWATER WITH A DETENTION TIME IN SAID SETTLING TANK OF FROM ABOUT 2 TO ABOUT 4 HOURS AND SUPPLY INFLUENT WASTEWATER TO SAID BIOLOGICAL TREATMENT UNIT THAT IS VIRTUALLY FREE FROM SIGNIFICANT AMOUNTS OF HYDROGEN SULPHIDE.

2. A wastewater treatment plant according to claim 1, wherein said inlet means includes a receiving chamber for said wastewater defined by at least a portion of one end wall of said tank structure and a weir member spaced from and parallel to said end wall, said weir member adapted to evenly transmit wastewater in said receiving chamber to each of said troughs and to exclude a flow of wastewater from said receiving chamber into said tank structure.

3. Apparatus according to claim 1, wherein said outlet means includes a manifold simultaneously removing wastewater from each of said troughs.

4. A wastewater treatment plant according to claim 1, wherein said inlet means includes distribution means for simultaneously supplying each of said troughs with a substantially equal portion of said raw wastewater.

5. A wastewater treatment plant according to claim 1, wherein said passage means includes a baffled longitudinal slot extending along the bottom of each of said troughs along its full length.

6. A wastewater treatment plant according to claim 5, wherein said longitudinal slot is formed by downwardly converging wall members of each of said troughs and one of said converging wall members extends below the point where the converging wall members would intersect.

7. A wastewater treatment plant according to claim 1, wherein said plurality is at least 3.

8. A treatment plant according to claim 1, wherein said predetermined depth is from about 10 to about 18 feet and the distance beneath said troughs and above said bottom wall is from about 3 to about 10 feet.

9. A treatment plant according to claim 8, wherein the distance between said end wall is not more than about 10 feet.

10. A treatment plant according to claim 9, wherein the width of each of said troughs is from about 2 to about 4 feet.

说明书全文

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