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公开(公告)号：EP4304994A1
公开(公告)日：2024-01-17
申请号：EP22768243.2
申请日：2022-03-14
申请人： Hampton Roads Sanitation District , D.C. Water and Sewer Authority , O'Shaughnessy, Maureen , Wett, Bernhard , Murthy, Sudhir
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公开(公告)号：EP4304993A1
公开(公告)日：2024-01-17
申请号：EP22768181.4
申请日：2022-03-14
申请人： Hampton Roads Sanitation District , D.C. Water and Sewer Authority , Wett, Bernhard , Murthy, Sudhir
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3.发明公开
公开(公告)号：EP2925676A1
公开(公告)日：2015-10-07
申请号：EP13858077.4
申请日：2013-11-27
申请人： Hampton Roads Sanitation District , D.C. Water & Sewer Authority , Nyhuis, Geert , O'Shaughnessy, Maureen , Wett, Bernhard , Bott, Charles , Murthy, Sudhir
CPC分类号： C02F3/1205 , B01D21/00 , B01D21/2488 , B01D21/262 , B01D21/267 , C02F1/385 , C02F3/12 , C02F3/1221 , C02F3/1268 , C02F3/1273 , C02F3/2813 , C02F9/00 , C02F2001/007 , C02F2203/004 , C02F2301/046 , C02F2303/24 , Y02W10/12 , Y02W10/15
摘要： A method and a system for selecting and retaining solids with superior settling characteristics, the method comprising feeding wastewater to an input of a processor that carries out a treatment process on the wastewater, outputting processed wastewater at an output of the processor, feeding the processed wastewater to an input of a gravimetric selector that selects solids with superior settling characteristics, and outputting a recycle stream at a first output of the gravimetric selector back to the processor.
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公开(公告)号：EP2925676B1
公开(公告)日：2018-12-26
申请号：EP13858077.4
申请日：2013-11-27
申请人： Hampton Roads Sanitation District , D.C. Water & Sewer Authority , O'Shaughnessy, Maureen , Wett, Bernhard
CPC分类号： C02F3/1205 , B01D21/00 , B01D21/2488 , B01D21/262 , B01D21/267 , C02F1/385 , C02F3/12 , C02F3/1221 , C02F3/1268 , C02F3/1273 , C02F3/2813 , C02F9/00 , C02F2001/007 , C02F2203/004 , C02F2301/046 , C02F2303/24 , Y02W10/12 , Y02W10/15
摘要： A method and a system for selecting and retaining solids with superior settling characteristics, the method comprising feeding wastewater to an input of a processor that carries out a treatment process on the wastewater, outputting processed wastewater at an output of the processor, feeding the processed wastewater to an input of a gravimetric selector that selects solids with superior settling characteristics, and outputting a recycle stream at a first output of the gravimetric selector back to the processor.
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公开(公告)号：EP3483123A1
公开(公告)日：2019-05-15
申请号：EP18214969.0
申请日：2013-11-27
申请人： Hampton Roads Sanitation District , D.C. Water & Sewer Authority , O'Shaughnessy, Maureen , Wett, Bernhard
摘要： A method and a system for selecting and retaining solids with superior settling characteristics, the method comprising feeding wastewater to an input of a processor that carries out a treatment process on the wastewater, outputting processed wastewater at an output of the processor, feeding the processed wastewater to an input of a gravimetric selector that selects solids with superior settling characteristics, and outputting a recycle stream at a first output of the gravimetric selector back to the processor.
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公开(公告)号：EP4169882A1
公开(公告)日：2023-04-26
申请号：EP22200155.4
申请日：2015-06-30
IPC分类号： C02F3/12 , C02F3/30 , C02F3/34 , C02F1/38 , C02F1/52 , C02F11/02 , B01D21/02 , B01D21/26 , B01D21/32
摘要： A method and an apparatus for biological wastewater treatment that includes a biological selector and a physical selector. The apparatus comprises an internal biological reactor where wastewater and recycled biomass are combined to provide a high substrate and high electron acceptor gradient for generating morphological biomass features that favor granule formation over floc and filament formation, and an external gravimetric or external screen selector operating on the biomass waste stream for collecting and retaining densified biomass aggregates including dense granule selection and for wasting lighter filaments and flocs. In the method and apparatus, particles may be added to provide cores to promote the formation of aggregates encapsulating the seeded particles. The particles may be added as various materials, for example, in the bioreactor, to initiate or seed the formation of a granule, that could then be separated by or integrated with either the external gravimetric or external screen selector. Further, organisms may be selected for biological phosphorus removal, denitrifying methane oxidizers, biological sulfur or sulfide oxidation, methanogenesis.
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7.发明公开
公开(公告)号：EP3160911A1
公开(公告)日：2017-05-03
申请号：EP15814999.7
申请日：2015-06-30
IPC分类号： C02F3/12 , C02F3/30 , C02F3/34 , C02F1/38 , C02F1/52 , C02F11/02 , B01D21/02 , B01D21/26 , B01D21/32
CPC分类号： C02F3/28 , C02F3/1268 , C02F3/223 , C02F3/2866 , C02F3/308 , C02F11/127 , C02F2101/105 , C02F2203/004 , C02F2203/006 , C02F2209/001 , C02F2209/14 , C02F2209/15 , C02F2209/22 , C02F2303/16 , C02F2303/24 , C02F2305/06 , Y02E50/343 , Y02W10/15
摘要： A method and an apparatus for biological wastewater treatment that includes a biological selector and a physical selector. The apparatus comprises an internal biological reactor where wastewater and recycled biomass are combined to provide a high substrate and high electron acceptor gradient for generating morphological biomass features that favor granule formation over floc and filament formation, and an external gravimetric or external screen selector operating on the biomass waste stream for collecting and retaining densified biomass aggregates including dense granule selection and for wasting lighter filaments and flocs. In the method and apparatus, particles may be added to provide cores to promote the formation of aggregates encapsulating the seeded particles. The particles may be added as various materials, for example, in the bioreactor, to initiate or seed the formation of a granule, that could then be separated by or integrated with either the external gravimetric or external screen selector. Further, organisms may be selected for biological phosphorus removal, denitrifying methane oxidizers, biological sulfur or sulfide oxidation, methanogenesis.
摘要翻译： 一种用于生物废水处理的方法和设备，其包括生物选择器和物理选择器。 该设备包括内部生物反应器，其中废水和循环的生物质被组合以提供高基质和高电子受体梯度，用于产生有利于絮状物和絮状物形成的颗粒形成的形态生物学特征，以及外部重力或外部筛选器， 生物质废物流用于收集和保留致密的生物质聚集体，包括致密颗粒选择和用于浪费较轻的细丝和絮状物。 在该方法和装置中，可以添加颗粒以提供芯以促进包封种子颗粒的聚集体的形成。 颗粒可以作为各种材料加入，例如在生物反应器中，以引发或接种颗粒的形成，然后可以将颗粒与外部重量筛选器或外部筛选器分离或整合。 此外，可以选择生物体用于生物除磷，反硝化甲烷氧化剂，生物硫或硫化物氧化，甲烷生成。
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公开(公告)号：EP2895430A1
公开(公告)日：2015-07-22
申请号：EP13837547.2
申请日：2013-09-13
发明人： WETT, Bernhard , REGMI, Pusker , OMARI, Ahmed , MILLER, Mark , BOTT, Charles, B. , MURTHY, Sudhir, N.
CPC分类号： C02F3/006 , C02F3/303 , C02F3/305 , C02F3/307 , C02F3/34 , C02F3/348 , C02F2003/001 , C02F2101/16 , C02F2103/005 , C02F2209/14 , C02F2209/15 , C02F2209/22 , Y02W10/15
摘要： One or more reactor and one or more control methods are used for nitrogen removal in wastewater treatment to achieve measured control of maintaining high ammonia oxidizing bacteria (AOB) oxidation rates while achieving nitrite oxidizing bacteria (NOB) outselection, using various control strategies, including: I) ammonia and the use of ammonia setpoints; 2) operational DO and the use of DO setpoints; 3) bioaugmentation of anammox and lighter flocculant AOB fraction; and 4) implementation of transient anoxia in several reactor configurations and conditions for removal of oxidized nitrogen using anammox or heterotrophic organisms. Controls described maximize nitrogen removal with minimal aeration, through control of transient anoxia and aerobic SRT, out-selection of NOB, and control of DO concentrations or aeration interval by keeping the reactor ammonia (NH4) and oxi
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