公开(公告)号：US5256303A

公开(公告)日：1993-10-26

申请号：US916905

申请日：1992-07-20

申请人： E. H. Kelle Zeiher ,  Cynthia A. Soderquist ,  Claudia C. Pierce ,  Kenneth P. Fivizzani

发明人： E. H. Kelle Zeiher ,  Cynthia A. Soderquist ,  Claudia C. Pierce ,  Kenneth P. Fivizzani

IPC分类号： B01D61/04 ,  B01D65/08 ,  C02F5/12 ,  C02F5/14

CPC分类号： C02F5/12 ,  B01D61/025 ,  B01D61/04 ,  B01D65/08 ,  C02F5/14 ,  B01D2311/04 ,  B01D2321/162 ,  B01D2321/168

摘要： A method for inhibiting calcium sulfate scale formation and deposition and/or dispersing iron from a feedstream passing through a reverse osmosis system which comprises the steps of: controlling the pH of the feedstream within the range between about 6.0 to about 7.0; controlling the temperature of the feedstream within the range between about 50.degree. to about 80.degree. F.; and adding a scale inhibitor and/or iron disperant to the feedstream in an amount between about 0.002 ppm per ppm hardness (as CaCO.sub.3) of the feedstream to about 0.005 ppm per ppm hardness (as CaCO.sub.3) of the feedstream, the scale inhibitor comprising a water-soluble organic phosphonate and an N-substituted acrylamide polymer containing an amide structure as follows: ##STR1## where R.sub.2 is hydrogen or methyl, R.sub.1 is a hydrogen or an alkyl, and R is alkylene or phenylene and X is sulfonate, (poly) hydroxyl, (poly) carboxyl or carbonyl, and combinations thereof, with the weight ratio of polymer to phosphonate being within the range of about 0.2:1 to about 2:1; provided that when X is sulfonated then R--X-- is selected from the group consisting of sulfomethyl and 2-sulfoethyl.

摘要翻译： 一种通过反渗透系统从进料流中抑制硫酸钙垢形成和沉积和/或分散铁的方法，其包括以下步骤：将原料流的pH控制在约6.0至约7.0之间的范围内; 将进料流的温度控制在约50至约80°F之间的范围内; 并且以进料流的每ppm硬度（作为CaCO 3）的约0.002ppm至进料流的每ppm硬度（作为CaCO 3）至约0.005ppm的量向进料流中加入防垢剂和/或铁挥发物，阻垢剂包含 水溶性有机膦酸酯和含有酰胺结构的N-取代丙烯酰胺聚合物如下：其中R 2是氢或甲基，R 1是氢或烷基，R是亚烷基或亚苯基，X是磺酸酯（聚 ）羟基，（多）羧基或羰基及其组合，聚合物与膦酸酯的重量比在约0.2:1至约2:1的范围内; 条件是当X被磺化时，则R-X-选自磺基甲基和2-磺乙基。

公开(公告)号：US5358640A

公开(公告)日：1994-10-25

申请号：US122729

申请日：1993-09-16

申请人： E. H. Kelle Zeiher ,  Cynthia A. Soderquist

发明人： E. H. Kelle Zeiher ,  Cynthia A. Soderquist

IPC分类号： B01D61/04 ,  B01D65/08 ,  C02F1/44 ,  C02F5/00 ,  C02F5/10 ,  C02F5/12 ,  C02F5/14

CPC分类号： C02F5/12 ,  B01D61/025 ,  B01D61/04 ,  B01D65/08 ,  C02F5/14 ,  B01D2311/04 ,  B01D2321/162 ,  B01D2321/168

摘要： A method for inhibiting calcium sulfate scale formation and deposition and/or dispersing iron from a feedstream passing through a reverse osmosis system which comprises the steps of: controlling the pH of the feedstream within the range between about 6.0 to about 7.0; controlling the temperature of the feedstream within the range between about 50.degree. to about 80.degree. F.; and adding a scale inhibitor and/or iron dispersant to the feedstream in an amount between about 0.002 ppm per ppm hardness (as CaCO.sub.3) of the feedstream to about 0.005 ppm per ppm hardness (as CaCO.sub.3) of the feedstream, the scale inhibitor comprising a water-soluble organic phosphonate, an N-substituted acrylamide polymer, caustic and water.

摘要翻译： 一种通过反渗透系统从进料流中抑制硫酸钙垢形成和沉积和/或分散铁的方法，其包括以下步骤：将原料流的pH控制在约6.0至约7.0之间的范围内; 将进料流的温度控制在约50至约80°F之间的范围内; 并且将进料流中的阻垢剂和/或铁分散剂以约0.002ppm / ppm的进料流硬度（作为CaCO 3）加入到原料流的每ppm硬度（如CaCO 3）至约0.005ppm，防垢剂包含 水溶性有机膦酸盐，N-取代丙烯酰胺聚合物，苛性碱和水。

公开(公告)号：US06838001B2

公开(公告)日：2005-01-04

申请号：US10722750

申请日：2003-11-26

申请人： E. H. Kelle Zeiher ,  Bosco P. Ho ,  John E. Hoots

发明人： E. H. Kelle Zeiher ,  Bosco P. Ho ,  John E. Hoots

IPC分类号： B01D61/12 ,  B01D61/22 ,  B01D61/54 ,  B01D65/10 ,  C02F1/44

CPC分类号： B01D65/102 ,  B01D61/12 ,  B01D61/22 ,  B01D61/54 ,  C02F1/441

摘要： Methods and systems for monitoring and/or controlling membrane separation systems or processes are provided. The present invention utilizes measurable amounts of inert fluorescent tracer(s) added to a feed stream to evaluate and/or control the purification of such feed stream during membrane separation. The methods and systems of the present invention can be utilized in a variety of different industrial applications including raw water processing and waste water processing.

摘要翻译： 提供了用于监测和/或控制膜分离系统或方法的方法和系统。 本发明利用可测量量的添加到进料流中的惰性荧光示踪剂来评估和/或控制膜分离期间这种进料流的纯化。 本发明的方法和系统可以用于各种不同的工业应用，包括原水处理和废水处理。

公开(公告)号：US06730227B2

公开(公告)日：2004-05-04

申请号：US10109260

申请日：2002-03-28

申请人： E. H. Kelle Zeiher ,  Bosco P. Ho ,  John E. Hoots

发明人： E. H. Kelle Zeiher ,  Bosco P. Ho ,  John E. Hoots

IPC分类号： B01D6122

CPC分类号： B01D65/102 ,  B01D61/12 ,  B01D61/22 ,  B01D61/54 ,  C02F1/441

摘要： Methods and systems for monitoring and/or controlling membrane separation systems or processes are provided. The present invention utilizes measurable amounts of inert fluorescent tracers and tagged fluorescent agents added to a feed stream to evaluate and/or control one or more parameters specific to membrane separation such that performance thereof can be optimized. The methods and systems of the present invention can be utilized in a variety of different industrial applications including raw water processing and waste water processing.

公开(公告)号：US20080149570A1

公开(公告)日：2008-06-26

申请号：US11613305

申请日：2006-12-20

申请人： E. H. Kelle Zeiher ,  Amit Gupta

发明人： E. H. Kelle Zeiher ,  Amit Gupta

IPC分类号： C02F1/72 ,  C02F1/76

CPC分类号： B01D65/08 ,  B01D2313/46 ,  B01D2321/00 ,  B01D2321/162 ,  B01D2321/168

摘要： This invention is a method for cleaning and maintaining a membrane filtration element/system used in a continuous feed stream wherein an oxidizing agent that does not cause membrane damage is used as a cleaning agent. The cleaning agent used to maintain and clean the membrane is a biocide that is preferably an oxy-chloro species and most preferably a stable chlorous acid.

摘要翻译： 本发明是用于清洗和维持用于连续进料流中的膜过滤元件/系统的方法，其中使用不引起膜损坏的氧化剂作为清洗剂。 用于保持和清洁膜的清洁剂是优选为氧氯物质，最优选稳定的亚氯酸的杀生物剂。

公开(公告)号：US06699684B2

公开(公告)日：2004-03-02

申请号：US10201088

申请日：2002-07-23

申请人： Bosco P. Ho ,  May W. Wu ,  E. H. Kelle Zeiher ,  Mita Chattoraj

发明人： Bosco P. Ho ,  May W. Wu ,  E. H. Kelle Zeiher ,  Mita Chattoraj

IPC分类号： A01N100

CPC分类号： C12Q1/04 ,  Y10S435/968

摘要： Methods for monitoring and/or controlling biofouling in membrane separation systems are provided. The present invention utilizes measurable amounts of fluorogenic agent(s) added to a feed stream to monitor and/or control the level of microbial growth during membrane separation and, thus, the purification of such feed stream during membrane separation.

摘要翻译： 提供了用于监测和/或控制膜分离系统中生物结垢的方法。 本发明利用可测量量的添加到进料流中的荧光剂来监测和/或控制膜分离期间微生物生长的水平，并因此在膜分离过程中纯化这些进料流。

公开(公告)号：US06258277B1

公开(公告)日：2001-07-10

申请号：US09638475

申请日：2000-08-14

申请人： Kristine S. Salmen ,  Angela S. Kowalski ,  E. H. Kelle Zeiher ,  William J. Ward

发明人： Kristine S. Salmen ,  Angela S. Kowalski ,  E. H. Kelle Zeiher ,  William J. Ward

IPC分类号： C02F162

CPC分类号： C02F1/56 ,  C02F2101/20 ,  C02F2103/346 ,  Y10S210/912

摘要： The simultaneous precipitation of soluble heavy metal ions from semiconductor wastewater containing abrasive solids and enhancement of microfilter operation is achieved through the addition of an effective amount of a water-soluble polymer containing dithiocarbamate functionalities to the wastewater.

摘要翻译： 通过向废水中加入有效量的含有二硫代氨基甲酸酯官能团的水溶性聚合物，可以实现含有磨料固体的半导体废水中的可溶性重金属离子的同时沉淀和微滤器操作的增强。

公开(公告)号：US07662289B2

公开(公告)日：2010-02-16

申请号：US11623552

申请日：2007-01-16

申请人： Deepak A. Musale ,  E. H. Kelle Zeiher

发明人： Deepak A. Musale ,  E. H. Kelle Zeiher

IPC分类号： B01D65/02

CPC分类号： C02F1/441 ,  B01D65/02 ,  B01D2321/162 ,  B01D2321/164 ,  B01D2321/166 ,  B01D2321/168 ,  C02F2303/16

摘要： A method of cleaning a fouled or a scaled RO or NF membrane surface with a solution containing one or more thermo-responsive polymers is disclosed. More specifically, the method comprises: treating the membrane surface in a membrane separation system with a solution containing one or more TRP, wherein said TRP is soluble in said solution and at least an effective amount of said TRP diffuses into a foulant layer on said membrane surface; making insoluble said TRP diffused into said foulant layer; optionally, rinsing the membrane.

摘要翻译： 公开了一种用含有一种或多种热响应聚合物的溶液清洁污垢或缩放的RO或NF膜表面的方法。 更具体地，该方法包括：用含有一种或多种TRP的溶液处理膜分离系统中的膜表面，其中所述TRP可溶于所述溶液中，并且至少有效量的所述TRP扩散到所述膜上的污垢层中 表面; 使不溶性TRP扩散到所述污垢层中; 任选地，漂洗膜。

公开(公告)号：US07169236B2

公开(公告)日：2007-01-30

申请号：US10738781

申请日：2003-12-17

申请人： E. H. Kelle Zeiher ,  Bosco P. Ho ,  John E. Hoots

发明人： E. H. Kelle Zeiher ,  Bosco P. Ho ,  John E. Hoots

IPC分类号： B08B7/04

CPC分类号： B01D61/12 ,  B01D65/02 ,  B01D2321/168 ,  C02F1/44 ,  C02F2303/16 ,  Y10T436/13

摘要： Methods and systems for monitoring and controlling the cleaning of membrane separation systems or processes are provided. The present invention uses detectable amounts of one or more inert fluorescent tracers added to a membrane cleaning process stream to evaluate and control the removal of contaminants and impurities during cleaning. The methods and systems of the present invention can be used in a variety of different industrial applications including raw water processing and waste water processing.

摘要翻译： 提供了用于监测和控制膜分离系统或过程的清洁的方法和系统。 本发明使用可检测量的一种或多种惰性荧光示踪剂，其添加到膜清洁工艺流中以评估和控制在清洁期间去除污染物和杂质。 本发明的方法和系统可用于各种不同的工业应用，包括原水处理和废水处理。

公开(公告)号：US06838002B2

公开(公告)日：2005-01-04

申请号：US10694476

申请日：2003-10-27

申请人： E. H. Kelle Zeiher ,  Bosco P. Ho ,  John E. Hoots

发明人： E. H. Kelle Zeiher ,  Bosco P. Ho ,  John E. Hoots

IPC分类号： B01D65/00 ,  B01D61/12 ,  B01D61/22 ,  B01D61/32 ,  B01D61/36 ,  B01D61/54 ,  B01D61/58 ,  B01D65/10 ,  C02F1/44

CPC分类号： B01D65/102 ,  B01D61/12 ,  B01D61/22 ,  B01D61/54 ,  C02F1/441

摘要： Methods and systems for monitoring and/or controlling membrane separation systems or processes are provided. The present invention utilizes measurable amounts of inert fluorescent tracers and tagged fluorescent agents added to a feed stream to evaluate and/or control one or more parameters specific to membrane separation such that performance thereof can be optimized. The methods and systems of the present invention can be utilized in a variety of different industrial applications including raw water processing and waste water processing.