公开(公告)号：US09145315B2

公开(公告)日：2015-09-29

申请号：US13783126

申请日：2013-03-01

申请人： Paradigm Environmental Technologies Inc.

发明人： Robert John Stephenson ,  Scott Christopher Laliberte ,  Preston Yee Ming Hoy ,  Patrick William George Neill

IPC分类号： C02F3/12 ,  C02F11/04 ,  C02F11/12

CPC分类号： C02F11/02 ,  C02F3/1221 ,  C02F11/04 ,  C02F11/12 ,  C02F2101/20 ,  C02F2203/00 ,  C02F2203/004 ,  C02F2303/06 ,  Y02W10/15

摘要： A process and system for treating wastewater is described. The invention degrades sludge produced by treatment of the wastewater to reduce or eliminate the need for sludge dewatering and disposal. The invention also reduces the amount of nutrient additives required to sustain the aerobic wastewater treatment process. In one embodiment the invention includes the steps of (a) providing an aerobic treatment system receiving a supply of the wastewater; (b) treating a supply of the sludge to rupture microbial cells present therein to produce treated sludge having an increased liquid:solid ratio and an increased degradation potential in comparison to untreated sludge; (c) conveying a supply of the treated sludge to the aerobic treatment system; and (d) substantially degrading the supply of treated sludge in the aerobic treatment system. The treated sludge may optionally be subjected to anaerobic digestion prior to delivery to the aerobic treatment system.

摘要翻译： 描述了一种处理废水的方法和系统。 本发明降低了废水处理产生的污泥，以减少或消除污泥脱水和处置的需要。 本发明还减少维持需氧废水处理过程所需的营养添加剂的量。 在一个实施方案中，本发明包括以下步骤：（a）提供接收废水供应的好氧处理系统; （b）与未处理的污泥相比，处理污泥的供应以破坏其中存在的微生物细胞以产生具有增加的液体：固体比和增加的降解潜力的处理过的污泥; （c）将经处理的污泥供应给需氧处理系统; 和（d）在需氧处理系统中大大降低处理过的污泥的供应。 经处理的污泥可以任选地在输送到需氧处理系统之前进行厌氧消化。

公开(公告)号：US3120870A

公开(公告)日：1964-02-11

申请号：US12942261

申请日：1961-08-04

申请人： PHILLIPS PETROLEUM CO

发明人： MELCON SANTOURIAN

IPC分类号： E21B43/16 ,  E21B43/30

CPC分类号： E21B43/30 ,  E21B43/164

公开(公告)号：US6013183A

公开(公告)日：2000-01-11

申请号：US129422

申请日：1998-08-05

申请人： Robert J. Stephenson ,  Harpreet S. Dhaliwal

发明人： Robert J. Stephenson ,  Harpreet S. Dhaliwal

IPC分类号： C02F3/12 ,  C02F11/00 ,  C02F11/02 ,  C02F11/04 ,  C02F11/18 ,  C02F3/00

CPC分类号： C02F3/1294 ,  C02F11/18 ,  C02F2303/06 ,  C02F2303/26 ,  Y02E50/343 ,  Y02W10/15

摘要： A process for liquefying microorganisms present in biosolids, such as waste activated sludge, generated by municipal or industrial wastewater treatment plants is disclosed. The process includes the step of passing a slurry of the sludge at a high pressure through a nozzle having a restricted flow area to cause liquefication of the microorganisms as they are discharged from the nozzle. The pressure drop across the nozzle preferably exceeds 5,000 psi. At least part of the liquefied microorganisms may be recirculated to the treatment facility to feed nutrients to the wastewater treatment process. Optionally, the liquefied microorganisms may be anaerobically converted to methane and carbon dioxide. For optimum results, the sludge is subjected to pH adjustment and/or maceration prior to being pumped through the high pressure nozzle.

摘要翻译： 公开了一种液化生物固体中存在的微生物的方法，例如由市政或工业废水处理厂产生的废活性污泥。 该方法包括使污泥在高压下通过具有限制流动面积的喷嘴的步骤，以在微生物从喷嘴排出时引起液化。 喷嘴上的压降优选超过5000psi。 至少部分液化微生物可以再循环到处理设施中以将营养物质供应到废水处理过程。 任选地，液化微生物可以厌氧地转化成甲烷和二氧化碳。 为获得最佳结果，在泵送通过高压喷嘴之前，将污泥进行pH调节和/或浸渍。

公开(公告)号：US20140246369A1

公开(公告)日：2014-09-04

申请号：US13783126

申请日：2013-03-01

申请人： PARADIGM ENVIRONMENTAL TECHNOLOGIES INC.

发明人： Robert John Stephenson ,  Scott Christopher Laliberte ,  Preston Yee Ming Hoy ,  Patrick William George Neill

IPC分类号： C02F3/12 ,  C02F3/30

CPC分类号： C02F11/02 ,  C02F3/1221 ,  C02F11/04 ,  C02F11/12 ,  C02F2101/20 ,  C02F2203/00 ,  C02F2203/004 ,  C02F2303/06 ,  Y02W10/15

摘要： A process and system for treating wastewater is described. The invention degrades sludge produced by treatment of the wastewater to reduce or eliminate the need for sludge dewatering and disposal. The invention also reduces the amount of nutrient additives required to sustain the aerobic wastewater treatment process. In one embodiment the invention includes the steps of (a) providing an aerobic treatment system receiving a supply of the wastewater; (b) treating a supply of the sludge to rupture microbial cells present therein to produce treated sludge having an increased liquid:solid ratio and an increased degradation potential in comparison to untreated sludge; (c) conveying a supply of the treated sludge to the aerobic treatment system; and (d) substantially degrading the supply of treated sludge in the aerobic treatment system. The treated sludge may optionally be subjected to anaerobic digestion prior to delivery to the aerobic treatment system.

摘要翻译： 描述了一种处理废水的方法和系统。 本发明降低了废水处理产生的污泥，以减少或消除污泥脱水和处置的需要。 本发明还减少维持需氧废水处理过程所需的营养添加剂的量。 在一个实施方案中，本发明包括以下步骤：（a）提供接收废水供应的好氧处理系统; （b）与未处理的污泥相比，处理污泥的供应以破坏其中存在的微生物细胞以产生具有增加的液体：固体比和增加的降解潜力的处理过的污泥; （c）将经处理的污泥供应给需氧处理系统; 和（d）在需氧处理系统中大大降低处理过的污泥的供应。 经处理的污泥可以任选地在输送到需氧处理系统之前进行厌氧消化。