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Synthesis of novel magneto-hybrid polyoxometalate composite membrane with simultaneous photocatalytic self-cleaning

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1450-1459 doi: 10.1007/s11705-023-2310-3

Abstract: migration toward the polyethersulfone (PES) membrane surface under a magnetic field to enhance the self-cleaningmagneto-HPOM nanocomposite improve the hydrophilicity, separation performance, antifouling and self-cleaningThis study revealed a novel approach to fabricating membranes with high antifouling and self-cleaning

Keywords： magneto-hybrid polyoxometalate nanocomposite     composite membrane     antifouling     self-cleaning     magnetic    

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Formation of disinfection by-products during sodium hypochlorite cleaning of fouled membranes from membrane

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-021-1389-3

Abstract:

•HAAs was dominant among the DBPs of interest.

Keywords： MBR     Biofouling     EPS     Chemical cleaning     DBPs     CLSM    

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Evaluation of precipitation behavior of zirconium molybdate hydrate

Liang ZHANG, Masayuki TAKEUCHI, Tsutomu KOIZUMI, Izumi HIRASAWA

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 65-71 doi: 10.1007/s11705-013-1314-9

Abstract: In order to prevent this accumulation, we have developed a new method based on the controlled reaction

Keywords： spent nuclear fuel     zirconium molybdate hydrate     cleaning method     accumulation    

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A New Multifunction Lube Oil for Weapons with Excellent Performances in Cleaning, Lubricating and Protecting

Feng Weisun,Wang Mengyan

Strategic Study of CAE 2000, Volume 2, Issue 4,   Pages 53-58

Abstract: all the main problems were settled down and the lube oil for weapons with excellent performances in cleaning

Keywords： multifunction weapon oil     base oil     additive     cleaning     lubricating     protecting    

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A thermodynamic study of the removal of HCl and H

Joseph LEE, Bo FENG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 67-83 doi: 10.1007/s11705-011-1162-4

Abstract: Advanced integrated-gasification combined-cycle (IGCC) and integrated-gasification fuel cell (IFGC) systems require high-temperature sorbents that are capable of removing hydrogen chloride and hydrogen sulfide from coal derived gases to very low levels. HCl and H S are highly reactive, corrosive, and toxic gases that must be removed to meet stringent environmental regulations, to protect power generation equipment and to control the emissions of contaminants. The thermodynamic behavior of 13 sorbents for the removal of HCl and H S under various conditions including: initial toxic gas concentration (1–10000 ppm), operating pressure (0.1–11 Mpa), temperature (300 K–1500 K), and the presence of H O were investigated. The correlation between HCl and H S was also examined. Thermodynamic calculations were carried out for the reactions of the 13 sorbents using a FactSage 5.2 software package based on free energy minimization. The sorbents, Na CO , NaHCO , K CO , and CaO are capable of completely removing chlorine at high temperatures (up to ~1240 K) and at high pressures. Water vapor did not have any significant effects on the dechlorination capability of the sorbents. Nine of the sorbents namely; Cu O, Na CO , NaHCO , K CO , CaO, ZnO, MnO, FeO, and PbO, were determined to have great potential as desulfurization sorbents. Cu O and ZnO had the best performance in terms of the optimum operating temperature. The addition of water vapor to the reactant gas produces a slightly detrimental effect on most of the sorbents, but FeO exhibited the worst performance with a reduction in the maximum operating temperature of about 428 K. The dechlorination performance of the alkali sorbents was not affected by the presence of H S in the reactions. However, the desulfurization capability of some sorbents was greatly affected by the presence of HCl. Particularly, the performance of Cu O was significantly reduced when HCl was present, but the performance of FeO improved remarkably. The thermodynamic results gathered are valuable for the developments of better sorbents.

Keywords： syngas cleaning     sorbent     desulfurization     dechlorination    

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A modified YOLOv4 detection method for a vision-based underwater garbage cleaning robot Research Article

Manjun TIAN, Xiali LI, Shihan KONG, Licheng WU, Junzhi YU,tianmanjun2018@163.com,xiaer_li@163.com,kongshihan@pku.edu.cn,wulicheng@tsinghua.edu.cn,junzhi.yu@ia.ac.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 8,   Pages 1217-1228 doi: 10.1631/FITEE.2100473

Abstract: We propose a garbage detection method based on a , allowing high-speed and high-precision .of further improvement on the detection accuracy, YOLOv4 is transformed into a four-scale detection method

Keywords： Object detection     Aquatic environment     Garbage cleaning robot     Modified YOLOv4    

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Using loose nanofiltration membrane for lake water treatment: A pilot study

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1362-6

Abstract:

• A pilot study was conducted for drinking water treatment using loose NF membranes.

Keywords： Nanofiltration     Drinking water     Membrane fouling     Aluminum carryover     Chemical cleaning    

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Study on the Formation and Elimination of Coarse Grains in Cast Steel

Zou Anquan,Deng Peiran

Strategic Study of CAE 2005, Volume 7, Issue 4,   Pages 79-82

Abstract: a results of too high casting temperature and the premature trunk opening in water explosion blast cleaning

Keywords： cast steel     coarse grain     water explosion blast cleaning     measures of elimination    

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nanofibre interlayer supported forward osmosis composite membranes and its evaluation in fouling study with cleaning

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1550-7

Abstract:

• A fine fibre (40–60 nm diameter) interlayer (~1 µm thickness) was electrospun.

Keywords： Forward osmosis     Electro-spinning     Interfacial polymerisation     Fouling     Polyvinylidene fluoride    

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Cleaning the energy sources for water heating among Nanjing households: barriers and opportunities for

Lingyun ZHU,Beibei LIU,Jun BI

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 757-766 doi: 10.1007/s11783-013-0603-3

Abstract: Energy for water heating accounts for an increasing part in residential energy demand in China. An extensive survey was conducted to analyze the determinants of household energy choices for water heaters among residents in Nanjing, China. Two sets of variables were examined as potential influences: building features and household socio-economic characteristics. Results suggest that building features such as gas availability and building structures, and household characteristics such as household head’s education degree and energy-conserving sense are crucial determinants in choosing natural gas as water heater energy. Installation permission for solar water heater, building stories, and residential location serve as determining factors in choosing solar water heaters. Based on these, barriers and opportunities are discussed for transitions toward cleaner water heating energies, and suggestions are given for local governments to promote cleaner energy replacement in China.

Keywords： residential energy demand     water heating     multinomial logit model    

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Performance of landfill leachate treatment system with disc-tube reverse osmosis units

WANG Baozhen, LIU Shuo, LIU Yanping, LI Xiujin

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 24-31 doi: 10.1007/s11783-008-0024-x

Abstract: Effective methods had been adopted to control membrane fouling, of which chemical cleaning is of utmostAt present, the 1st stage cleaning cycle by Cleaner A and Cleaner C is conducted every 100 and 500 h,

Keywords： chemical cleaning     product     organic     nitrogen     Effective    

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Integrated Membrane Separation Processes

Gao Congjie,Yu Sanchuan,Jin keyong

Strategic Study of CAE 2000, Volume 2, Issue 7,   Pages 43-46

Abstract: application of integrated membrane separation processes in water purification, wastewater treatment, cleaning

Keywords： membrane separation     integrated membrane separation process     water purification     desalination     cleaning manufacture    

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Application of Ice Pigging in a Drinking Water Distribution System: Impacts on Pipes and Bulk Water Quality

Yujing Huang,Zhiwei Chen,Guilin He,Yu Shao,Shuang Song,Feilong Dong,Tuqiao Zhang,

Engineering doi: 10.1016/j.eng.2023.09.016

Abstract: Ice pigging is an emerging technique for pipe cleaning in drinking water distribution systems.Chloride concentration analysis demonstrated that separate cleaning of pipes with different materials

Keywords： Ice pigging     Pipe cleaning     Drinking water distribution system     Bacterial community     Sediments    

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Experimental investigation of multiphase flow behavior in drilling annuli using high speed visualization technique

Alap Ali ZAHID, Syed Raza ur REHMAN, Anwarul HASAN, S. RUSHD, Mohammad Azizur RAHMAN

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 635-643 doi: 10.1007/s11708-018-0582-y

Abstract: the drilling conditions and to study the physics of complex multiphase flow associated with the hole cleaningIn this paper the hole cleaning process which involves the transportation of cuttings through a horizontalpaper has a direct application in investigating the critical conditions required for efficient hole cleaning

Keywords： visualization     horizontal annulus     hole cleaning     multiphase flow     image analysis     flow regime    

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Technology of cleaning and protecting corrosion for metal structures in large-scale non-grid-connected

Wu Hao,Zou Yizhe and Bai Ke

Strategic Study of CAE 2015, Volume 17, Issue 3,   Pages 41-44

Abstract: In this paper， the methods of cleaning， rinsing and treating metal parts would be studied.

Keywords： large-scale non-grid-connected wind power； metal； clean； protect corrosion； pretreatment    

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Title Author Date Type Operation

Synthesis of novel magneto-hybrid polyoxometalate composite membrane with simultaneous photocatalytic self-cleaning

Journal Article

Formation of disinfection by-products during sodium hypochlorite cleaning of fouled membranes from membrane

Journal Article

Evaluation of precipitation behavior of zirconium molybdate hydrate

Liang ZHANG, Masayuki TAKEUCHI, Tsutomu KOIZUMI, Izumi HIRASAWA

Journal Article

A New Multifunction Lube Oil for Weapons with Excellent Performances in Cleaning, Lubricating and Protecting

Feng Weisun,Wang Mengyan

Journal Article

A thermodynamic study of the removal of HCl and H

Joseph LEE, Bo FENG

Journal Article

A modified YOLOv4 detection method for a vision-based underwater garbage cleaning robot

Manjun TIAN, Xiali LI, Shihan KONG, Licheng WU, Junzhi YU,tianmanjun2018@163.com,xiaer_li@163.com,kongshihan@pku.edu.cn,wulicheng@tsinghua.edu.cn,junzhi.yu@ia.ac.cn

Journal Article

Using loose nanofiltration membrane for lake water treatment: A pilot study

Journal Article

Study on the Formation and Elimination of Coarse Grains in Cast Steel

Zou Anquan,Deng Peiran

Journal Article

nanofibre interlayer supported forward osmosis composite membranes and its evaluation in fouling study with cleaning

Journal Article

Cleaning the energy sources for water heating among Nanjing households: barriers and opportunities for

Lingyun ZHU,Beibei LIU,Jun BI

Journal Article

Performance of landfill leachate treatment system with disc-tube reverse osmosis units

WANG Baozhen, LIU Shuo, LIU Yanping, LI Xiujin

Journal Article

Integrated Membrane Separation Processes

Gao Congjie,Yu Sanchuan,Jin keyong

Journal Article

Application of Ice Pigging in a Drinking Water Distribution System: Impacts on Pipes and Bulk Water Quality

Yujing Huang,Zhiwei Chen,Guilin He,Yu Shao,Shuang Song,Feilong Dong,Tuqiao Zhang,

Journal Article

Experimental investigation of multiphase flow behavior in drilling annuli using high speed visualization technique

Alap Ali ZAHID, Syed Raza ur REHMAN, Anwarul HASAN, S. RUSHD, Mohammad Azizur RAHMAN

Journal Article

Technology of cleaning and protecting corrosion for metal structures in large-scale non-grid-connected

Wu Hao,Zou Yizhe and Bai Ke

Journal Article