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公开(公告)号：US09738553B2
公开(公告)日：2017-08-22
申请号：US13838352
申请日：2013-03-15
Applicant: Ravi Chidambaran , Narendra Singh Bisht , Pavan Raina
Inventor： Ravi Chidambaran , Narendra Singh Bisht , Pavan Raina
IPC: B01D1/00 , B01D3/00 , B01D9/00 , C02F1/04 , C02F1/52 , C02F1/56 , C02F1/60 , C02F1/66 , C02F9/00 , C02F1/44 , C02F11/12
CPC classification number: C02F9/00 , B01D1/00 , B01D3/00 , B01D9/00 , C02F1/04 , C02F1/441 , C02F1/52 , C02F1/56 , C02F1/66 , C02F11/12 , C02F2001/5218
Abstract: We provide a process for treatment of produced water, including but not limited to water produced by a “steam flood” process for extraction of oil from oil sands, including the removal of color from the water. This removal may be accomplished through addition of color-removal polymers and flocculents. This process may also be useful for other water treatment processes including reverse osmosis and filtration.
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公开(公告)号：US20130240442A1
公开(公告)日：2013-09-19
申请号：US13838352
申请日：2013-03-15
Applicant: Ravi Chidambaran , Narendra Singh Bisht , Pavan Raina
Inventor： Ravi Chidambaran , Narendra Singh Bisht , Pavan Raina
IPC: C02F9/00
CPC classification number: C02F9/00 , B01D1/00 , B01D3/00 , B01D9/00 , C02F1/04 , C02F1/441 , C02F1/52 , C02F1/56 , C02F1/66 , C02F11/12 , C02F2001/5218
Abstract: We provide a process for treatment of produced water, including but not limited to water produced by a “steam flood” process for extraction of oil from oil sands, including the removal of color from the water. This removal may be accomplished through addition of color-removal polymers and flocculents. This process may also be useful for other water treatment processes including reverse osmosis and filtration.
Abstract translation: 我们提供一种处理生产用水的方法，包括但不限于通过“蒸汽洪水”方法生产的水，用于从油砂中提取油，包括从水中除去颜色。 该去除可以通过添加除色聚合物和絮凝剂来实现。 该方法也可用于其它水处理方法，包括反渗透和过滤。
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公开(公告)号：US20090308805A1
公开(公告)日：2009-12-17
申请号：US12481909
申请日：2009-06-10
Applicant: Ravi Chidambaran , Devesh Sharma , Pavan Raina , Sugata Das
Inventor： Ravi Chidambaran , Devesh Sharma , Pavan Raina , Sugata Das
CPC classification number: C02F1/444 , B01D61/145 , B01D69/02 , B01D69/087 , B01D71/44 , B01D71/68 , B01D2323/02 , B01D2323/18 , B01D2323/22 , B01D2325/022 , B01D2325/34 , C08L39/06 , D01D1/02 , D01D5/24 , D01F6/44 , D01F6/94 , C08L2666/02
Abstract: A multipolymeric mixture is provided that includes a hydrophobic polymer, two different grades of a water-soluble polymer, water as non-solvent and a solvent suitable for all polymers involved. The dissolved hydrophobic polymer has the affinity to enmesh the water-soluble polymers to form a clear and viscous dope. Water-soluble polymers contribute to the pore formation process and hydrophilicity of the finally coagulated membrane according to the makeup of their molecular weight distribution.Water as a non-solvent takes the dope very near towards unstable zone, which helps in speeding up the membrane formation process in a diffusion induced phase inversion technique. The dope is then spun through a concentric orifice spinneret and solidified by passing it through a coagulation bath to form hollow fiber asymmetric membranes of ultra filtration grade with superior water permeability and separation characters even at higher feed turbidity.
Abstract translation: 提供了一种聚合物混合物，其包括疏水性聚合物，两种不同等级的水溶性聚合物，作为非溶剂的水和适用于所有聚合物的溶剂。 溶解的疏水性聚合物具有与水溶性聚合物的亲和性以形成透明和粘稠的涂料。 根据其分子量分布的组成，水溶性聚合物有助于最终凝结膜的孔形成过程和亲水性。 作为非溶剂的水将涂料非常靠近不稳定区域，这有助于在扩散诱导的相转化技术中加速膜形成过程。 然后将纺丝液通过同心孔喷丝头纺丝并通过将其通过凝固浴固化以形成即使在更高的进料浊度下也具有优异的透水性和分离特性的超滤级别的中空纤维不对称膜。
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公开(公告)号：US06896814B2
公开(公告)日：2005-05-24
申请号：US10325372
申请日：2002-12-19
Applicant: Ravi Chidambaran , Devesh Sharma , Pavan Raina
Inventor： Ravi Chidambaran , Devesh Sharma , Pavan Raina
IPC: B01D61/44 , B01D61/48 , B01D61/50 , B01D61/52 , B01J47/08 , C02F1/00 , C02F1/42 , C02F1/46 , C02F1/469 , C02F1/68 , C02F5/00 , C02F11/00 , C02F11/18
CPC classification number: C02F1/4695 , B01D61/48 , B01D61/52 , B01J47/08 , C02F1/003 , C02F1/005 , C02F1/42 , C02F1/4602 , C02F1/4604 , C02F1/4693 , C02F1/68 , C02F5/00 , C02F11/00 , C02F11/18 , C02F2201/46115 , C02F2201/46125
Abstract: A liquid treatment process is described for sequential removal of ionic species of progressively decreasing ionic strength without precipitation or “scaling.” An aspect of the invention includes dual electrodeionization operations. The first electrodeionization operation is performed at a voltage calculated to remove strongly ionized species such as calcium and magnesium from the feed water without scaling. The product of the first electrodeionization operation is then subjected to a second electrodeionization operation. The second electrodeionization operation is performed at a voltage greater than the first electrodeionization operation, and is designed to remove more weakly ionized species such as silica and carbon dioxide, preventing scaling. More than two successive electrodeionization operations may be performed if desired. Multiple electrodeionization operations may occur in a single electrodeionization stack or in multiple electrodeionization stacks.
Abstract translation: 描述了一种液体处理方法，用于顺序地去除逐渐降低的离子强度的离子物质，而没有沉淀或“结垢”。 本发明的一个方面包括双电解离子化操作。 第一电去电离操作以计算为从进料水中除去强烈离子化物质例如钙和镁的电压进行，而没有结垢。 然后对第一电去电离操作的产物进行第二电去离子化操作。 第二电去离子化操作以大于第一电去离子化操作的电压进行，并且被设计成去除更弱的电离物质如二氧化硅和二氧化碳，防止结垢。 如果需要，可以进行两次以上的电去离子化操作。 多个电去离子化操作可能发生在单个电去离子堆叠或多个电去离子堆叠中。
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5.发明申请SPLIT FLOW EDI APPARATUS FOR TREATING SECOND PASS RO PERMEATE WATER WITH HIGH FLOW RATE 有权用于处理具有高流量速率的第二通道渗透水的分流式EDI设备公开(公告)号：US20120080314A1
公开(公告)日：2012-04-05
申请号：US13251677
申请日：2011-10-03
Applicant: Ravi Chidambaran , Narendra Singh Bisht , Pavan Raina
Inventor： Ravi Chidambaran , Narendra Singh Bisht , Pavan Raina
CPC classification number: B01D61/58 , B01D61/025 , B01D61/48 , B01D61/485 , B01D61/50 , B01D2313/14 , B01D2313/345 , C02F1/441 , C02F1/4695 , C02F9/00 , C02F2201/4611 , C02F2201/4618 , C02F2209/05
Abstract: We report an electro-deionization (EDI) device having split flow arrangement for the purification of second pass RO permeate water with high flow rate in which the feed water is fed through the center port and is diverted into each section of dilute chamber with equal flow rate, producing two product streams. The EDI device has concentrate chambers adjacent to dilute chambers in two sections of the stack, allowing independent flow through the separate sections. The split flow design reduces resin bed depth requirement for processing of second pass RO permeate water. This results in higher flow rate through the stack, elimination of the pressure drop limitation, and reduction of power consumption per unit volume of water.
Abstract translation: 我们报告了具有分流流动布置的电去离子（EDI）装置，其用于净化具有高流速的第二道RO渗透水，其中给水通过中心端口进料并且以相等的流量转入每个稀释室部分 率，产生两个产品流。 EDI装置具有与堆叠的两个部分中的稀释室相邻的浓缩室，允许独立流过分开的部分。 分流设计降低了加工第二道RO渗透水的树脂床深度要求。 这导致通过堆叠的较高流速，消除压降限制，以及降低每单位体积水的功率消耗。
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Patent Agency Ranking
公开(公告)号：US07705061B2
公开(公告)日：2010-04-27
申请号：US11636795
申请日：2006-12-11
Applicant: Ravi Chidambaran , Pavan Raina , Devesh Sharma , Narendra Singh Bisht
Inventor： Ravi Chidambaran , Pavan Raina , Devesh Sharma , Narendra Singh Bisht
CPC classification number: B01D61/48 , B01J39/04 , B01J47/018 , B01J47/08 , C02F1/4695 , B01J41/04
Abstract: This invention presents an ion exchange media including a plurality of cation exchange zones and anion exchange zones in flow paths that are contained in a substantially nonporous resin transport framework. During electrodeionization and other potential applications the ion exchange media of the invention prevents unfavorable water splitting at resin-membrane interfaces and encourages water splitting at resin-resin interfaces where the water splitting may be constructively used to regenerate the resin.
Abstract translation: 本发明提供一种离子交换介质，其包含多个阳离子交换区和位于基本上无孔的树脂输送框架中的流动路径中的阴离子交换区。 在电去离子化和其他潜在应用中，本发明的离子交换介质防止树脂 - 膜界面处的不利的水分裂，并且促进树脂 - 树脂界面处的水分解，其中水分解可以建设性地用于再生树脂。
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公开(公告)号：US08753509B2
公开(公告)日：2014-06-17
申请号：US13024006
申请日：2011-02-09
Applicant: Ravi Chidambaran , Pavan Raina , Sugata Das , Nitin Chandan
Inventor： Ravi Chidambaran , Pavan Raina , Sugata Das , Nitin Chandan
CPC classification number: C02F1/44 , B01D63/082 , B01D65/02 , B01D65/025 , B01D69/08 , B01D2313/44 , B01D2315/06 , B01D2317/02 , B01D2317/04 , B01D2321/02 , B01D2321/185 , B01D2321/30
Abstract: Embodiments of the present invention relate to a filtration module and/or a novel method of making a frameless filtration module for water or wastewater treatment that can produce filtrate that is free of particles, reduce precipitated hardness, colloids and organic compounds. The designed apparatus, which is either encapsulated or in cassette form, can be assembled and disbanded easily to suit diverse process requirements. The module configuration and assembly also helps in clean-in-place, repair or replacement activities to be performed in situ.
Abstract translation: 本发明的实施例涉及一种制造用于水或废水处理的无框过滤模块的过滤模块和/或新方法，其可以产生不含颗粒的滤液，降低沉淀硬度，胶体和有机化合物。 被设计的装置，既可以是封装的，也可以是盒式的，可以容易地进行组装和拆散，以适应不同的工艺要求。 模块配置和组装也有助于在原地进行现场清洁，维修或更换活动。
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公开(公告)号：US20130193077A1
公开(公告)日：2013-08-01
申请号：US13561258
申请日：2012-07-30
Applicant: Ravi Chidambaran , Pavan Raina , Narendra Singh Bisht
Inventor： Ravi Chidambaran , Pavan Raina , Narendra Singh Bisht
IPC: C02F1/52
CPC classification number: C02F1/52 , C02F1/5245 , C02F1/56 , C02F1/66 , C02F2101/10 , C02F2103/10
Abstract: We provide a process for the neutralization and precipitation of high pH brines that eliminates the formation of “gelatinous silica” during neutralization. The high pH brine is neutralized in a two-step neutralization process. In the first step the salt concentration of a high pH brine is built up to a minimum level of 8-12%, and then its pH is reduced to 9-9.5. The partially neutralized brine is allowed a reaction period with mild agitation. Subsequently the pH is further reduced, typically to 8-9. A coagulant and/or a polymer can also be used to enhance the settling or filtration rate of the neutralized stream.
Abstract translation: 我们提供了一个中和和沉淀高pH盐酸盐的方法，消除了在中和过程中形成“凝胶状二氧化硅”。 高pH盐酸盐在两步中和过程中被中和。 在第一步中，高pH盐水的盐浓度达到8-12％的最低水平，然后将其pH降至9-9.5。 允许部分中和的盐水在温和搅拌下进行反应。 随后pH进一步降低，通常为8-9。 凝结剂和/或聚合物也可用于增强中和流的沉降或过滤速率。
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公开(公告)号：US08424688B2
公开(公告)日：2013-04-23
申请号：US13354664
申请日：2012-01-20
Applicant: Ravi Chidambaran , Devesh Sharma , Pavan Raina , Sugata Das
Inventor： Ravi Chidambaran , Devesh Sharma , Pavan Raina , Sugata Das
CPC classification number: C02F1/444 , B01D61/145 , B01D69/02 , B01D69/087 , B01D71/44 , B01D71/68 , B01D2323/02 , B01D2323/18 , B01D2323/22 , B01D2325/022 , B01D2325/34 , C08L39/06 , D01D1/02 , D01D5/24 , D01F6/44 , D01F6/94 , C08L2666/02
Abstract: A multipolymeric mixture is provided that includes a hydrophobic polymer, two different grades of a water-soluble polymer, water as non-solvent and a solvent suitable for all polymers involved. The dissolved hydrophobic polymer has the affinity to enmesh the water-soluble polymers to form a clear and viscous dope. Water-soluble polymers contribute to the pore formation process and hydrophilicity of the finally coagulated membrane according to the makeup of their molecular weight distribution.Water as a non-solvent takes the dope very near towards unstable zone, which helps in speeding up the membrane formation process in a diffusion induced phase inversion technique. The dope is then spun through a concentric orifice spinneret and solidified by passing it through a coagulation bath to form hollow fiber asymmetric membranes of ultra filtration grade with superior water permeability and separation characters even at higher feed turbidity.
Abstract translation: 提供了一种聚合物混合物，其包括疏水性聚合物，两种不同等级的水溶性聚合物，作为非溶剂的水和适用于所有聚合物的溶剂。 溶解的疏水性聚合物具有与水溶性聚合物的亲和性以形成透明和粘稠的涂料。 根据其分子量分布的组成，水溶性聚合物有助于最终凝结膜的孔形成过程和亲水性。 作为非溶剂的水将涂料非常靠近不稳定区域，这有助于在扩散诱导的相转化技术中加速膜形成过程。 然后将纺丝液通过同心孔喷丝头纺丝并通过将其通过凝固浴固化以形成即使在更高的进料浊度下也具有优异的透水性和分离特性的超滤级别的中空纤维不对称膜。
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公开(公告)号：US20120111790A1
公开(公告)日：2012-05-10
申请号：US13354664
申请日：2012-01-20
Applicant: Ravi Chidambaran , Devesh Sharma , Pavan Raina , Sugata Das
Inventor： Ravi Chidambaran , Devesh Sharma , Pavan Raina , Sugata Das
CPC classification number: C02F1/444 , B01D61/145 , B01D69/02 , B01D69/087 , B01D71/44 , B01D71/68 , B01D2323/02 , B01D2323/18 , B01D2323/22 , B01D2325/022 , B01D2325/34 , C08L39/06 , D01D1/02 , D01D5/24 , D01F6/44 , D01F6/94 , C08L2666/02
Abstract: A multipolymeric mixture is provided that includes a hydrophobic polymer, two different grades of a water-soluble polymer, water as non-solvent and a solvent suitable for all polymers involved. The dissolved hydrophobic polymer has the affinity to enmesh the water-soluble polymers to form a clear and viscous dope. Water-soluble polymers contribute to the pore formation process and hydrophilicity of the finally coagulated membrane according to the makeup of their molecular weight distribution.Water as a non-solvent takes the dope very near towards unstable zone, which helps in speeding up the membrane formation process in a diffusion induced phase inversion technique. The dope is then spun through a concentric orifice spinneret and solidified by passing it through a coagulation bath to form hollow fiber asymmetric membranes of ultra filtration grade with superior water permeability and separation characters even at higher feed turbidity.
Abstract translation: 提供了一种聚合物混合物，其包括疏水性聚合物，两种不同等级的水溶性聚合物，作为非溶剂的水和适用于所有聚合物的溶剂。 溶解的疏水性聚合物具有与水溶性聚合物的亲和性以形成透明和粘稠的涂料。 根据其分子量分布的组成，水溶性聚合物有助于最终凝结膜的孔形成过程和亲水性。 作为非溶剂的水将涂料非常靠近不稳定区域，这有助于在扩散诱导的相转化技术中加速膜形成过程。 然后将纺丝液通过同心孔喷丝头纺丝并通过将其通过凝固浴固化以形成即使在更高的进料浊度下也具有优异的透水性和分离特性的超滤级别的中空纤维不对称膜。
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