Process and apparatus for treating wastes by a combined activated sludge and biological filter bed
阅读：225发布：2022-12-05
专利汇可以提供Process and apparatus for treating wastes by a combined activated sludge and biological filter bed专利检索，专利查询，专利分析的服务。并且This invention relates to an improvement in aerobic biological processes for treating waste fluids or sewage.，下面是Process and apparatus for treating wastes by a combined activated sludge and biological filter bed专利的具体信息内容。
1. A PROCESS FOR THE TREATMENT OF SEWAGE AND THE LIKE, SAID PROCESS COMPRISING: MAINTAINING A SUBMERGED BIOLOGICAL FILTER BED ZONE CONTAINING FINELY DIVIDED, PARTICULATE FILTER MEDIA, MAINTAINING AN ACTIVATED SLUDGE ZONE IN UPSTREAM FLUID FLOW RELATIONSHIP TO SAID BIOLOGICAL FILTER BED ZONE; FEEDING SEWAGE OR THE LIKE TO BE TREATED TO SAID ACTIVATED SLUDGE ZONE; AERATING BOTH SAID BIOLIGICAL FILTER BED ZONE AND SAID ACTIVATED SLUDGE ZONE; WITHDRAWING TREATED EFFLUENT FROM SAID BIOLOGICAL FILTER BED ZONE; AND BACKWASHING SAID BIOLOGICAL FILTER BED ZONE AS OFTEN AS REQUIRED TO MAINTAIN THE OPERATING EFFECTIVENESS OF SAID BIOLOGICAL FILTER BED ZONE AND AN ACCEPTABLE HEAD AT THE POINT OF WITHDRAWAL OF THE TREATED EFFLUENT, AN UPPER LAYER OF SAID FILTER MEDIA BEING TRANSPORTED TO A CONDUIT HAVING AN UPPER SAID ACTIVATED SLUDGE ZONE, SAID CONDUIT HAVING UPPER LIMIT END FOR THE TRANSPORTED FILTER MEDIA AND A LOWER OUTLET END THROUGH WHICH SAID TRANSPORT FILTER MEDIA IS RETURNED TO SAID UPPER LAYER OF SAID FILTER MEDIA, THE SAID TRANSPORTED FILTER MEDIA BEING AERATED DURING THE PASSAGE THEREOF THROUGH SAID CONDUIT.
2. The process according to claim 1, wherein the sewage or like is fed to the biological filter bed zone in an upstream fluid flow relationship to the activated sludge zone.
3. The process according to claim 1, wherein sludge is concentrated in an activated sludge concentrating zone adjacent to and in communication with said activated sludge zone for removal therefrom.
4. A process as claimed in claim 1, in which the sewage or the like is fed through said filter bed zone and said activated sludge zone under pressure.
5. A process as claimed in claim 1, in which the sewage or the like is drawn through said filter bed zone and said activated sludge zone under vacuum.
6. A process as claimed in claim 1, in which at least a portion of the filtering media is circulated to enable said backwashing to be carried out continuously.
7. A process as claimed in claim 6, in which at least part of the circulating filter media is aerated.
8. A process as claimed in claim 1, in which air is fed into the bottom portion of the biological filter bed zone.
9. A process as claimed in claim 1, in which air is fed into the bottom portion of the activated sludge zone.
10. A process as claimed in claim 1, in which said aerating is carried out intermittently.
11. A process as claimed in claim 1, in which aeration is carried out with a gas selected from oxygen and oxygen-enriched air.
12. Apparatus for the treatment of sewage and the like, said apparatus comprising: means for maintaining a submerged biological filter bed zone containing finely divided, particulate filter media; means for maintaining an activated sludge zone in upstream fluid flow relationship to said biological filter bed zone; means for supplying sewage or the like to said activated sludge zone; means for aerating said biological filter bed zone and said activated sludge zone; means for removing treated effluent from said biological filter zone; means for backwashing said biological filter bed; and means for removing backwashings from a point upstream from the said filter bed zone, said apparatus further comprising means for transporting an upper layer of said filter media, a conduit positioned in said activated sludge zone, said conduit having an upper inlet end for the transported filter media and a lower outlet end through which transported filter media is returned to said upper layer of said filter media, and means for aerating said filter media as it passes through Said conduit.
13. An apparatus as claimed in claim 12, that includes an activated sludge concentrator operatively associated with said means for maintaining an activated sludge zone.
14. An apparatus as claimed in claim 13 that includes means to reduce the amount of foam in said sludge concentrator.
15. An apparatus as claimed in claim 13, in which the sludge concentrator is open at the bottom to allow a recirculation of the sludge.
16. An apparatus as claimed in claim 12, including means to circulate said filter media.
17. An apparatus as claimed in claim 16, in which said means to circulate said filter media is an air lift.
18. An apparatus as claimed in claim 16, including means to aerate at least part of the circulated filter media.
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 一种纸箱包装中印刷废水处理方法 | 2020-05-11 | 452 |
| 一种南美白对虾养殖系统 | 2020-05-11 | 913 |
| 脱氮除磷活性生物载体、其制备方法及其应用 | 2020-05-11 | 40 |
| 一种采用全封闭循环水养殖虾的方法和装置 | 2020-05-08 | 675 |
| 一种养猪场废水处理方法 | 2020-05-12 | 567 |
| 一种水产养殖尾水处理及循环装置 | 2020-05-11 | 644 |
| 一种去除排泥水中嗅味物质的方法及系统 | 2020-05-12 | 332 |
| 一种改良反硝化深床滤池 | 2020-05-12 | 169 |
| 一种新型的曝气生物滤池 | 2020-05-11 | 648 |
| 一种应用于水处理的专效除铁锰滤料层结构 | 2020-05-12 | 823 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。
分析报告
专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。
生物滤池热门专利
QQ群二维码
意见反馈
意见反馈