公开(公告)号：US10967308B2

公开(公告)日：2021-04-06

申请号：US15989193

申请日：2018-05-25

Applicant: Nanjing University ,  Yixing Environmental Protection Research Institute of Nanjing University

Inventor： Hui Huang ,  Hongqiang Ren ,  Xuxiang Zhang ,  Jinju Geng ,  Qing Wang

IPC: B01D29/66 ,  B01D21/28 ,  B01D29/50 ,  C02F1/00 ,  C02F1/28 ,  C02F1/36 ,  C02F101/20

Abstract: A modular backwash assembly and method for using the same is disclosed, the modular backwash assembly comprises a filter brick body, an ultrasonic generator and an ultrasonic connecting component, the filter brick body is provided at an upper portion with a square trench and a cover, the square trench is provided with a plurality of stiffeners and fillers, and a conductive channel is provided on the periphery of the square trench and is provided with an ultrasonic conductive medium therein. The invention has the advantages of firm structure and durable, the gas distribution uniformity may be increased up to 96% and the turbidity average is below the specification 10 NTU.

公开(公告)号：US09090489B2

公开(公告)日：2015-07-28

申请号：US13853082

申请日：2013-03-29

Applicant: Nanjing University

Inventor： Jinju Geng ,  Hongqiang Ren

IPC: C02F3/30

CPC classification number: C02F3/30 ,  C02F1/281 ,  C02F1/283 ,  C02F1/285 ,  C02F1/32 ,  C02F1/5245 ,  C02F1/56 ,  C02F1/722 ,  C02F1/725 ,  C02F3/308 ,  C02F9/00 ,  C02F2101/105 ,  C02F2101/38 ,  C02F2103/20 ,  C02F2103/343 ,  C02F2303/04 ,  Y02W10/37

Abstract: A method for removing antibiotic resistance genes (ARGs). The method includes the following steps: 1) coagulation and sedimentation of waste water; 2) biochemical treatment; 3) disinfection by peracetic acid; 4) sterilization by high pressure CO2; 5) photocatalysis by nano-titanium dioxide (TiO2); and 6) depositing.

Abstract translation: 一种去除抗生素抗性基因（ARGs）的方法。 该方法包括以下步骤：1）废水凝结沉淀; 2）生化处理; 3）过乙酸消毒; 4）高压CO2灭菌; 5）纳米二氧化钛（TiO2）的光催化; 和6）存款。

公开(公告)号：US09182332B2

公开(公告)日：2015-11-10

申请号：US13872112

申请日：2013-04-28

Applicant: Nanjing University

Inventor： Hongqiang Ren ,  Zhanhui Shen ,  Jinju Geng ,  Ke Xu ,  Xinkun Ren

IPC: G01N27/403 ,  G01N27/26 ,  G01N17/02

CPC classification number: G01N17/02

Abstract: A device for testing a corrosion inhibitor, the device including: a circulating cooling water tank; a circulating water pump; a flowmeter; a five-port glass tube; a working electrode; a reference electrode; an auxiliary electrode; a heating rod; and an electrochemical workstation. The circulating water pump is connected to the circulating cooling water tank. The heating rod is fixed inside the circulating cooling water tank. The water inlet of the flowmeter is connected to the circulating water pump. The water outlet of the flowmeter is connected to the water inlet of the five-port glass tube. The water outlet of the five-port glass tube is connected to the circulating cooling water tank. The working electrode the reference electrode, and the auxiliary electrode are connected to the electrochemical workstation; and the electrochemical workstation is connected to a host computer.

Abstract translation: 一种用于测试腐蚀抑制剂的装置，该装置包括：循环冷却水箱; 循环水泵; 一个流量计; 五口玻璃管; 工作电极 参考电极; 辅助电极; 加热棒 和电化学工作站。 循环水泵连接循环冷却水箱。 加热棒固定在循环冷却水箱内。 流量计的进水口连接循环水泵。 流量计的出水口连接到五口玻璃管的进水口。 五口玻璃管的出水口与循环冷却水箱连接。 工作电极参考电极和辅助电极连接到电化学工作站; 并且电化学工作站连接到主计算机。

公开(公告)号：US09416035B2

公开(公告)日：2016-08-16

申请号：US13968421

申请日：2013-08-15

Applicant: Nanjing University

Inventor： Hongqiang Ren ,  Chuan Niu ,  Jinju Geng ,  Ke Xu

IPC: C02F1/48 ,  C02F3/12 ,  C02F3/20

CPC classification number: C02F3/12 ,  C02F1/482 ,  C02F3/121 ,  C02F3/1284 ,  C02F3/201 ,  C02F2209/08 ,  Y02W10/15

Abstract: A device for sewage treatment, including: a reactor and a magnetic field generator. The reactor includes a stirrer, an aerator, an activated sludge zone, an upper end including a water inlet, a side wall including a water outlet, and a bottom including a sludge outlet. The magnetic field includes magnets and iron plates. The activated sludge zone is disposed inside the reactor. The stirrer and the aerator are disposed within the activated sludge zone. The aerator is arranged beneath the stirrer. The magnetic field generator is disposed outside the reactor. The magnets and the iron plates are symmetrically disposed on two sides of the reactor, respectively, and each of the magnets is disposed on the inner side of the corresponding iron plate. The magnets disposed on both sides of the reactor produce magnetic fields having the same direction.

Abstract translation: 一种用于污水处理的装置，包括：反应堆和磁场发生器。 反应器包括搅拌器，曝气器，活性污泥区，包括进水口的上端，包括出水口的侧壁和包括污泥出口的底部。 磁场包括磁铁和铁板。 活性污泥区设置在反应器内。 搅拌器和曝气器设置在活性污泥区内。 曝气器布置在搅拌器下面。 磁场发生器设置在反应器的外部。 磁体和铁板分别对称地设置在电抗器的两侧，并且每个磁体设置在对应的铁板的内侧。 设置在反应堆两侧的磁体产生具有相同方向的磁场。

公开(公告)号：US09970909B2

公开(公告)日：2018-05-15

申请号：US13905168

申请日：2013-05-30

Applicant: Nanjing University

Inventor： Hongqiang Ren ,  Zhanhui Shen ,  Ke Xu ,  Jinju Geng ,  Xinkun Ren

IPC: G01N31/00 ,  G01N33/00 ,  G01N31/16 ,  B01L3/08

CPC classification number: G01N33/00 ,  B01L3/08 ,  G01N31/16

Abstract: A device for evaluating a scale inhibitor for a circulating cooling water system, the device including: an open vessel, the open vessel including a first fixing hole, a second fixing hole, and at least one test hole; a stirrer; a test piece; a condenser; and a constant temperature heater. The open vessel is disposed inside the constant temperature heater. The first fixing hole is used to fix the stirrer. The second fixing hole is used to fix the condenser. The test hole is used to fix the test piece.

公开(公告)号：US09255020B2

公开(公告)日：2016-02-09

申请号：US13923345

申请日：2013-06-20

Applicant: Nanjing University

Inventor： Hongqiang Ren ,  Chuan Niu ,  Jinju Geng ,  Ke Xu

IPC: C02F1/48 ,  B01D59/48 ,  C02F3/08 ,  C02F3/10 ,  C02F3/00

CPC classification number: C02F3/085 ,  C02F1/485 ,  C02F3/107 ,  C02F2003/001 ,  C02F2305/12 ,  Y02W10/15

Abstract: A device for sewage treatment including a reactor and a magnetic field generator. The reactor includes a water inlet at the upper end, a water outlet on the side wall, and a sludge outlet at the lower end. A stirrer and an aeration device are disposed in the reactor. The reactor is filled with magnetic powder and activated sludge. The magnetic field generator includes a magnetic field tester, an iron cover, a power supply, a transformer, and a spiral coil. The spiral coil loops around the outer surface of the reactor. The transformer, the spiral coil, and the power supply are connected in sequence. The iron cover surrounds the periphery and the bottom of the reactor, and the magnetic field tester is disposed within the reactor. A method for sewage treatment using the device is also provided.

Abstract translation: 一种污水处理装置，包括电抗器和磁场发生器。 反应器包括上端的进水口，侧壁上的出水口和下端的污泥出口。 搅拌器和曝气装置设置在反应器中。 反应器充满了磁粉和活性污泥。 磁场发生器包括磁场测试器，铁盖，电源，变压器和螺旋线圈​​。 螺旋线圈环绕反应堆的外表面。 变压器，螺旋线圈和电源依次连接。 铁盖围绕反应器的周边和底部，并且磁场测试器设置在反应器内。 还提供了使用该装置的污水处理方法。

公开(公告)号：US11513109B2

公开(公告)日：2022-11-29

申请号：US16016606

申请日：2018-06-24

Applicant: NANJING UNIVERSITY

Inventor： Jinju Geng ,  Yingying Fu ,  Xingsheng Gao ,  Hongqiang Ren

IPC: G01N33/18 ,  C12Q1/26 ,  C12Q1/28 ,  C12Q1/30

Abstract: A biological toxicity test method for evaluating an ecological safety of an advanced oxidation process comprising the following steps: (1) collecting (preparing) a waste water to be determined; (2) collecting the waste water and a tap water after the advanced oxidation process treatment; (3) subjecting Koi (Cyprinus carpio haematopterus) to the water after treatment for exposure to poison; (4) Determining an anti-oxidation enzyme activity of a liver of the Koi after exposure; (5) Data analyzing. By comparing the changes of liver enzyme activities in different water, the present method evaluates the toxicity changes of micro-pollutant containing water before and after treatment, which fills in the gap of the ecological risk assessment for advanced oxidation technology.

公开(公告)号：US11014835B2

公开(公告)日：2021-05-25

申请号：US16902213

申请日：2020-06-15

Applicant: Nanjing University

Inventor： Hongqiang Ren ,  Haidong Hu ,  Jinju Geng ,  Lili Ding ,  Hui Huang

IPC: C02F1/44 ,  C02F3/30

Abstract: A method of measuring concentration of dissolved organic nitrogen in sewage. The method includes: filtering a sewage sample using a filter membrane; measuring the concentrations of total dissolved nitrogen (TDN), ammonia nitrogen (NH4+), and nitric nitrogen (NO3−) in the sewage sample, respectively designated as CTDN(I), CNH4+(I) and CNO3−(I); calculating the ratios of (CNH4+(I)+CNO3−(I))/CTDN(I) and CNO3−(I)/CNH4+(I), and according to the ratios, calculating the concentration of dissolved organic nitrogen (DON) in the sewage sample.

公开(公告)号：US10556814B2

公开(公告)日：2020-02-11

申请号：US14470931

申请日：2014-08-27

Applicant: Nanjing University

Inventor： Hongqiang Ren ,  Haidong Hu ,  Jinju Geng ,  Ke Xu

IPC: C02F3/04 ,  C02F3/28 ,  C02F3/00 ,  C02F101/16

Abstract: A denitrification biofilter device, including: a regulating pool, a reactor body, a water tank, a first doser, a second doser, a backwash pump, a water inlet pump, and a blower. The regulating pool includes a raw water inlet and a water outlet. The reactor body includes a uniform water distributor, a filler layer, a buffer layer, a filter layer, a supporting layer, a filler supporting plate, a backwash water outlet, a treated water outlet, and a backwash water inlet. The treated water outlet and the backwash water inlet are disposed at the bottom of the reactor body and are connected to the water tank via pipes. The filler layer is filled with zeolites having a grain size of between 4 and 8 mm, a density of between 1.9 and 2.6 g/cm3, a porosity greater or equal to 48%, and a specific surface area of between 570 and 670 m2/g.

公开(公告)号：US10233103B2

公开(公告)日：2019-03-19

申请号：US15626126

申请日：2017-06-18

Applicant: NANJING UNIVERSITY

Inventor： Jinju Geng ,  Xingsheng Gao ,  Hongqiang Ren ,  Ke Xu ,  Yan Zhang ,  Hui Huang

IPC: C02F9/00 ,  G01N30/72 ,  B01D15/30 ,  B01D15/42 ,  C02F101/34 ,  C02F101/38 ,  C02F103/00 ,  C02F1/52 ,  C02F1/72 ,  C02F1/00 ,  C02F1/32 ,  C02F1/68 ,  C02F101/32

Abstract: The present invention discloses an advanced oxidation process of degrading nonsteroidal anti-inflammatory drugs in sewage by UV persulfate. The sewage flows to a secondary sedimentation tank by gravity, and sediments are precipitated and separated. Na2S2O8 solution is added therein, and a UV lamp is opened. Effluent result is analyzed after photooxidation. The sewage is transferred into a contact disinfection pool to react with ClO2 before discharging safely. The present invention uses a UV-based advanced oxidation process, which can effectively remove the nonsteroidal anti-inflammatory drugs in sewage, meets the requirements of sewage discharging, and decreases the environmental risk of nonsteroidal anti-inflammatory drugs. The method has some advantages such as simple equipments, easy operation, reasonable economy, as well as efficient treatment effect and high stability.