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公开(公告)号：US20150360989A1
公开(公告)日：2015-12-17
申请号：US14765357
申请日：2013-03-04
Applicant: Evoqua Water Technologies LLC
Inventor： Raymond G. Pepin
CPC classification number: C02F11/14 , C02F1/52 , C02F2303/18 , C02F2305/04
Abstract: Disclosed are apparatus and methods for treating wastewater. In one example there is provided a wastewater treatment system. The wastewater treatment system comprises a separation vessel including a separator inlet and a settled sludge outlet, a source of treated wastewater including a ballast material configured and arranged to introduce the treated wastewater into the separation vessel, a separator configured and arranged to separate ballast from settled sludge output from the settled sludge output of the separation vessel, a sludge conduit providing fluid communication between the settled sludge outlet and the separator, and a source of dispersant configured and arranged to introduce dispersant into the settled sludge prior to separation of the ballast from the settled sludge in the separator.
Abstract translation: 公开了用于处理废水的装置和方法。 在一个实例中，提供了一种废水处理系统。 所述废水处理系统包括分离容器，所述分离容器包括分离器入口和沉降的污泥出口，处理废水源包括压载材料，所述压载材料构造和布置成将经处理的废水引入所述分离容器中;分离器，被配置和布置成将镇流器与沉降物分离 从分离容器的沉降的污泥产出产生的污泥，在沉淀的污泥出口和分离器之间提供流体连通的污泥管道，以及配置和布置成将分散剂引入沉淀的污泥中的分散源，然后将镇流器与 在分离器中沉淀污泥。
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公开(公告)号：US11242271B2
公开(公告)日：2022-02-08
申请号：US16307551
申请日：2017-06-05
Applicant: Evoqua Water Technologies, LLC
Inventor： Rohan Wikramanayake , Raymond G. Pepin , Thomas Miles
Abstract: A system for treating metal-contaminated wastewater includes a primary treatment sub-system, a secondary treatment sub-system, and a tertiary treatment sub-system. The tertiary treatment sub-system includes a reactor tank, a source of ballast material, a source of coagulant, a solids-liquid separator, and a controller configured to recycle ballasted solids from the solids-liquid separator to the reactor tank an amount sufficient to generate metal hydroxide floc in the reactor tank to reduce a concentration of dissolved metal in the reactor tank.
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公开(公告)号：US11772993B2
公开(公告)日：2023-10-03
申请号：US17575057
申请日：2022-01-13
Applicant: Evoqua Water Technologies LLC
Inventor： Rohan Wikramanayake , Raymond G. Pepin , Thomas Miles
CPC classification number: C02F3/1226 , C02F1/5209 , C02F1/5236 , C02F1/56 , C02F1/66 , C02F2003/003 , C02F2101/20 , C02F2209/06 , C02F2305/12 , Y02W10/10
Abstract: A system for treating metal-contaminated wastewater includes a primary treatment sub-system, a secondary treatment sub-system, and a tertiary treatment sub-system. The tertiary treatment sub-system includes a reactor tank, a source of ballast material, a source of coagulant, a solids-liquid separator, and a controller configured to recycle ballasted solids from the solids-liquid separator to the reactor tank an amount sufficient to generate metal hydroxide floc in the reactor tank to reduce a concentration of dissolved metal in the reactor tank.
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公开(公告)号：US20220135455A1
公开(公告)日：2022-05-05
申请号：US17575057
申请日：2022-01-13
Applicant: Evoqua Water Technologies LLC
Inventor： Rohan Wikramanayake , Raymond G. Pepin , Thomas Miles
IPC: C02F3/12
Abstract: A system for treating metal-contaminated wastewater includes a primary treatment sub-system, a secondary treatment sub-system, and a tertiary treatment sub-system. The tertiary treatment sub-system includes a reactor tank, a source of ballast material, a source of coagulant, a solids-liquid separator, and a controller configured to recycle ballasted solids from the solids-liquid separator to the reactor tank an amount sufficient to generate metal hydroxide floc in the reactor tank to reduce a concentration of dissolved metal in the reactor tank.
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