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公开(公告)号：US09994470B2
公开(公告)日：2018-06-12
申请号：US14003667
申请日：2011-03-07
申请人： Sijing Wang , Zhonghong Cheng , Weiqing Xu
发明人： Sijing Wang , Zhonghong Cheng , Weiqing Xu
摘要： Recalcitrant chemical oxygen demand (COD) of a liquid is reduced in a water treatment system. The method includes pretreating the liquid in a pretreatment unit to remove indigenous bacteria or microbes to a population level below which the indigenous organisms can interfere with the screened and externally introduced microorganisms. The liquid is then provided to a reactor that has a filter bed formed with a carrier material. Special microbes are screened and used to colonize the carrier material to remove recalcitrant COD. A biofilm is cultured on the surface of the carrier material to immobilize the screened microbes in the reactor. The method further includes percolating the liquid from the pretreatment unit through the filter bed colonized with the screened microbes to degrade at least part of the recalcitrant COD under aerobic conditions. In one embodiment, the filter is formed with biological granular activated carbon (GAC) as the carrier material and the screened microbes comprise at least one microbial species selected from the group consisting of Bacillus, Comamonas, Arthrobacter, Micrococcus, Pseudomonas, Pediococcus, Achromobacter, Flavobacterium, Mycobacterium, Rhodanobacter, Stenotrophomonas and Yeast.
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公开(公告)号：US09266762B2
公开(公告)日：2016-02-23
申请号：US13254881
申请日：2010-09-30
申请人： Sijing Wang , Yanrong Zhu , Gaorong He
发明人： Sijing Wang , Yanrong Zhu , Gaorong He
IPC分类号： B01D61/04 , B01D61/12 , C02F1/44 , C02F9/00 , B01D61/02 , B01D61/10 , C02F1/52 , C02F1/54 , C02F1/56 , C02F1/66 , C02F5/08
CPC分类号： C02F9/00 , B01D61/022 , B01D61/025 , B01D61/027 , B01D61/04 , B01D2311/04 , B01D2311/08 , B01D2311/18 , B01D2311/2642 , B01D2311/2661 , B01D2317/04 , C02F1/441 , C02F1/442 , C02F1/444 , C02F1/5236 , C02F1/54 , C02F1/56 , C02F1/66 , C02F5/08
摘要： A membrane filtration process includes pretreating an influent solution to remove suspended solids, to produce a pretreated solution. pH of the pretreated solution is adjusted to at least 8.3 or lower by injecting CO2 into the pretreated solution, to produce a conditioned solution. Injecting CO2 also serves to supplement bicarbonate in the conditioned solution. The conditioned solution is flowed through a membrane filtration unit, to produce a permeate solution and a retentate solution. The membrane filtration unit comprises reverse osmosis membranes or nanofiltration membranes, or both. The retentate solution is then treated to cause precipitation, to produce a supernatant solution and a reject solution. At least a portion of the supernatant solution is recirculated by combining it with the influent solution prior to the step of pretreating.
摘要翻译： 膜过滤方法包括预处理流入溶液以除去悬浮固体，以产生预处理的溶液。 通过将CO 2注入预处理溶液中将预处理溶液的pH调节至至少8.3或更低，以产生调节溶液。 注入二氧化碳也用于补充调理溶液中的碳酸氢盐。 将调理的溶液流过膜过滤单元，以产生渗透液和渗余物溶液。 膜过滤单元包括反渗透膜或纳滤膜，或两者兼有。 然后处理渗余物溶液以引起沉淀，产生上清液和拒绝溶液。 在预处理步骤之前，将至少一部分上清液再循环通过与流入液组合。
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公开(公告)号：US20130248445A1
公开(公告)日：2013-09-26
申请号：US13254881
申请日：2010-09-30
申请人： Sijing Wang , Yanrong Zhu , Gaorong He
发明人： Sijing Wang , Yanrong Zhu , Gaorong He
IPC分类号： C02F9/00
CPC分类号： C02F9/00 , B01D61/022 , B01D61/025 , B01D61/027 , B01D61/04 , B01D2311/04 , B01D2311/08 , B01D2311/18 , B01D2311/2642 , B01D2311/2661 , B01D2317/04 , C02F1/441 , C02F1/442 , C02F1/444 , C02F1/5236 , C02F1/54 , C02F1/56 , C02F1/66 , C02F5/08
摘要： A membrane filtration process includes pretreating an influent solution to remove suspended solids, to produce a pretreated solution. pH of the pretreated solution is adjusted to at least 8.3 or lower by injecting CO2 into the pretreated solution, to produce a conditioned solution. Injecting CO2 also serves to supplement bicarbonate in the conditioned solution. The conditioned solution is flowed through a membrane filtration unit, to produce a permeate solution and a retentate solution. The membrane filtration unit comprises reverse osmosis membranes or nanofiltration membranes, or both. The retentate solution is then treated to cause precipitation, to produce a supernatant solution and a reject solution. At least a portion of the supernatant solution is recirculated by combining it with the influent solution prior to the step of pretreating.
摘要翻译： 膜过滤方法包括预处理流入溶液以除去悬浮固体，以产生预处理的溶液。 通过将CO 2注入预处理溶液中将预处理溶液的pH调节至至少8.3或更低，以产生调节溶液。 注入二氧化碳也用于补充调理溶液中的碳酸氢盐。 将调理的溶液流过膜过滤单元，以产生渗透液和渗余物溶液。 膜过滤单元包括反渗透膜或纳滤膜，或两者兼有。 然后处理渗余物溶液以引起沉淀，产生上清液和拒绝溶液。 在预处理步骤之前，将至少一部分上清液再循环通过与流入液组合。
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公开(公告)号：US20120270328A1
公开(公告)日：2012-10-25
申请号：US13119295
申请日：2010-12-21
申请人： Guixi Zhang , Sijing Wang , Hong Xu , Xiaofeng Tang
发明人： Guixi Zhang , Sijing Wang , Hong Xu , Xiaofeng Tang
IPC分类号： G01N21/49
CPC分类号： G01N21/49
摘要： The present invention concerns a method of detecting cationic polymers comprising: obtaining a target water sample containing a cationic polymer; adding a polymer dispersant solution and a phosphate solution to the target water sample, the polymer dispersant solution is comprised of a polymer dispersant with calcium and magnesium hardness and the phosphate solution is comprised of a phosphate; standing the target water sample; and measuring the turbidity of the target water sample; comparing the turbidity of said target water sample with a calibration curve of the turbidity of samples containing known concentrations of cationic polymers to determine the concentration of cationic polymers in said target water sample.
摘要翻译： 本发明涉及一种检测阳离子聚合物的方法，包括：获得含有阳离子聚合物的目标水样品; 将聚合物分散剂溶液和磷酸盐溶液加入到目标水样品中，聚合物分散剂溶液由具有钙和镁硬度的聚合物分散剂组成，磷酸盐溶液由磷酸盐组成; 站在目标水样上; 并测量目标水样品的浊度; 将所述目标水样品的浊度与含有已知浓度的阳离子聚合物的样品的浊度的校准曲线进行比较，以确定所述目标水样品中阳离子聚合物的浓度。
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公开(公告)号：US07611632B1
公开(公告)日：2009-11-03
申请号：US12266853
申请日：2008-11-07
IPC分类号： C02F1/00
CPC分类号： C02F1/56 , C02F3/1268 , Y02W10/15
摘要： Disclosed is a method of conditioning mixed liquor in a membrane bioreactor (MBR) system comprising adding an effective amount of a tannin containing polymer to the mixed liquor. Also disclosed is a method of improving flux in an MBR system comprising adding an effective amount of a tannin containing polymer to mixed liquor of the MBR. An effective amount of the tannin containing polymer may be added separately or in combination with other water soluble sludge filterability improvement polymers or sludge filterability improvement inorganic coagulants to the mixed liquor of the MBR. In one embodiment, the tannin containing polymer is a water soluble or dispersible copolymer of a tannin and a cationic monomer. In another embodiment, the tannin containing polymer is a water soluble or dispersible polymer of a tannin, a cationic monomer, and at least one monomer.
摘要翻译： 公开了一种在膜生物反应器（MBR）系统中调节混合液的方法，包括向混合液中加入有效量的含单宁聚合物。 还公开了一种改善MBR系统中的通量的方法，包括向MBR的混合液中加入有效量的含单宁聚合物。 含有单宁含量的聚合物的有效量可以单独加入，也可以与其它水溶性污泥过滤性改进聚合物或污泥过滤性能改善无机凝结剂一起加入到MBR的混合液中。 在一个实施方案中，含有单宁的聚合物是单宁和阳离子单体的水溶性或可分散的共聚物。 在另一个实施方案中，含单宁的聚合物是单宁酸，阳离子单体和至少一种单体的水溶性或分散性聚合物。
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公开(公告)号：US08679850B2
公开(公告)日：2014-03-25
申请号：US13119295
申请日：2010-12-21
申请人： Guixi Zhang , Sijing Wang , Hong Xu , Xiaofeng Tang
发明人： Guixi Zhang , Sijing Wang , Hong Xu , Xiaofeng Tang
IPC分类号： G01N21/49
CPC分类号： G01N21/49
摘要： The present invention concerns a method of detecting cationic polymers comprising: obtaining a target water sample containing a cationic polymer; adding a polymer dispersant solution and a phosphate solution to the target water sample, the polymer dispersant solution is comprised of a polymer dispersant with calcium and magnesium hardness and the phosphate solution is comprised of a phosphate; standing the target water sample; and measuring the turbidity of the target water sample; comparing the turbidity of said target water sample with a calibration curve of the turbidity of samples containing known concentrations of cationic polymers to determine the concentration of cationic polymers in said target water sample.
摘要翻译： 本发明涉及一种检测阳离子聚合物的方法，包括：获得含有阳离子聚合物的目标水样品; 将聚合物分散剂溶液和磷酸盐溶液加入到目标水样品中，聚合物分散剂溶液由具有钙和镁硬度的聚合物分散剂组成，磷酸盐溶液由磷酸盐组成; 站在目标水样上; 并测量目标水样品的浊度; 将所述目标水样品的浊度与含有已知浓度的阳离子聚合物的样品的浊度的校准曲线进行比较，以确定所述目标水样品中阳离子聚合物的浓度。
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公开(公告)号：US20130056412A1
公开(公告)日：2013-03-07
申请号：US12810024
申请日：2010-05-05
IPC分类号： C02F3/00
CPC分类号： C02F3/006 , C02F1/56 , C02F3/1273 , C02F2001/427 , C02F2209/005 , C02F2209/03 , C02F2209/40 , Y02W10/15
摘要： A membrane bioreactor uses a process and apparatus for dosing flux enhancing chemicals (FEC) to respond to temporary periods of operation that cause, or are likely to cause, membrane fouling. An FEC dosing device is provided in communication with a channel separating a process tank and the membrane unit of an MBR. A mixer in the channel rapidly mixes dosed FEC with mixed liquor flowing into the membrane tank. The dosing device is connected to sensors sensing conditions in the channel, the membrane unit or both. FEC is added to the mixed liquor flowing into the membrane unit considering conditions in the mixed liquor flowing to the membrane unit or membrane operating parameters or both. The FEC dosage may be in the range of 0.05 to 10 mg/g MLSS. The process may include steps of initiating dosing, adjusting the dosing concentration, and terminating dosing.
摘要翻译： 膜生物反应器使用用于剂量通量增强化学品（FEC）的方法和装置来响应引起或可能导致膜污染的临时操作时期。 提供了一种FEC分配装置，其与分离处理罐和MBR的膜单元的通道连通。 通道中的混合器快速混合定量的FEC与流入膜槽的混合液。 计量装置连接到感测通道，膜单元或两者中的条件的传感器。 考虑到流到膜单元或膜操作参数的混合液中的条件或两者，将FEC加入流入膜单元的混合液中。 FEC剂量可以在0.05至10mg / g MLSS的范围内。 该方法可以包括起始给药，调整给药浓度和终止给药的步骤。
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公开(公告)号：US07879235B2
公开(公告)日：2011-02-01
申请号：US12050514
申请日：2008-03-18
申请人： Sijing Wang
发明人： Sijing Wang
IPC分类号： C02F3/00
CPC分类号： B09C1/10 , B09B3/00 , B09C1/002 , C02F1/444 , C02F3/30 , C02F3/348 , C02F2101/105 , C02F2101/16 , C02F2101/30
摘要： A method for purifying a waste environment includes treating a portion of the waste environment to inactivate or diminish native microorganisms, adding augmenting microorganisms to the treated waste environment, simultaneously growing and acclimating a microbiological culture and discharging the microbiological culture to the waste environment. The method provides improved biological purification of waste and in-situ bioaugmentation.
摘要翻译： 净化废弃环境的方法包括处理废弃环境的一部分以灭活或减少天然微生物，向经处理的废弃环境中添加增加的微生物，同时生长并适应微生物培养物并将微生物培养物排放到废物环境中。 该方法提供改进的废物生物净化和原位生物增殖。
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公开(公告)号：US09902636B2
公开(公告)日：2018-02-27
申请号：US14424162
申请日：2012-09-10
申请人： Sijing Wang , Lei Wang , Haiwu Zhang , Weiqing Xu , Ying Zhou
发明人： Sijing Wang , Lei Wang , Haiwu Zhang , Weiqing Xu , Ying Zhou
IPC分类号： C02F3/04 , C02F3/34 , C02F3/02 , C02F3/10 , C02F3/12 , C02F3/28 , C02F101/30 , C02F101/32 , C02F101/36 , C02F101/38 , C02F103/06 , C02F103/36 , C02F3/00
CPC分类号： C02F3/341 , C02F3/02 , C02F3/04 , C02F3/106 , C02F3/107 , C02F3/108 , C02F3/1268 , C02F3/2853 , C02F3/348 , C02F2003/001 , C02F2003/003 , C02F2101/30 , C02F2101/327 , C02F2101/36 , C02F2101/38 , C02F2103/06 , C02F2103/365 , C02F2203/004 , C02F2305/06 , Y02W10/15
摘要： A method for reducing recalcitrant chemical oxygen demand (COD) of a liquid in a water system is provided. The method comprises pretreating the liquid in a pretreatment unit (12) to remove indigenous bacteria or microbes to a population level below which the indigenous organisms can interfere with the screened and externally introduced microorganisms. The liquid is then provided to a reactor (20) that has a filter bed (22) formed with a carrier material (26). Special microbes are screened and used to colonize the carrier material (26) to remove recalcitrant COD. A biofilm is cultured on the surface of the carrier material (26) to immobilize the screened microbes in the reactor (20). The method further comprises adding a co-substrate as the liquid enters the reactor (20) and percolating the liquid through the filter bed (22) colonized with the screened microbes to degrade at least part of the recalcitrant COD under aerobic conditions. The screened microbes comprise at least one microbial species selected from the group consisting of Bacillus, Comamonas, Arthrobacter, Micrococcus, Pseudomonas, Pediococcus, Achromobacter, Flavobacterium, Mycobacterium, Rhodanobacter, Stenotrophomonas and yeast.
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公开(公告)号：US20150329394A1
公开(公告)日：2015-11-19
申请号：US14649922
申请日：2012-12-07
申请人： Sijing WANG , Nicholas William H. ADAMS , Jeffrey Gerard PEETERS , Wajahat Hussain SYED , Lei WANG , Ying ZHOU , General Electric Company
发明人： Sijing WANG , Nicholas William H. ADAMS , Jeffrey Gerard PEETERS , Wajahat Hussain SYED , Lei WANG , Ying ZHOU
CPC分类号： C02F3/1226 , C02F3/1273 , C02F3/30 , C02F2103/365 , C02F2209/001 , C02F2209/08 , C02F2209/22 , C02F2303/16 , C02F2303/20 , C02F2303/24 , C02F2305/06 , Y02W10/15
摘要： A membrane bioreactor (MBR) has membranes comprising a supporting structure. A supply unit doses a sorbent such as powdered activated carbon (PAC) into the MBR. The PAC is maintained at a concentration in the mixed liquor of 200 mg/L or more. Mixed liquor with the sorbent particles recirculates within the MBR at a flow rate of at least twice the feed flow rate. Air bubbles are provided to scour the membranes including during at least part of a permeation step. The sorbent particles are present in the mixed liquor and contact the membranes. Bioaugmentation products may be immobilized on PAC or other carriers and then added to an MBR or other bioreactors.
摘要翻译： 膜生物反应器（MBR）具有包括支撑结构的膜。 供应单元将诸如粉末状活性炭（PAC）的吸附剂剂量化到MBR中。 PAC的浓度在200mg / L以上的混合液中保持。 与吸附剂颗粒混合的液体以至少两倍于进料流速的流速在MBR内再循环。 提供气泡以冲洗膜，包括在渗透步骤的至少一部分期间。 吸附剂颗粒存在于混合液体中并与膜接触。 生物增殖产物可以固定在PAC或其他载体上，然后加入到MBR或其他生物反应器中。
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