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A Large-Scale Plant in Treating Young Landfill Leachate: Focusing on the Application of Dopamine Modified Ceramic Membrane Smbr and Change of Nitrifying and Denitrifying Bacteria

SSRN

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SSRN 2024年

作者： Wang, Cong Wu, Hanyang Han, Runlin Zhang, Shujun Ni, Shou-Qing Li, Weicheng Qi, Weikang Peng, Yongzhen National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology Beijing University of Technology Beijing100124 China Jiangxi Bocent Advanced Ceramic Environmental Technology Co. Ltd Jiangxi Province Pingxiang337000 China School of Chemistry and Chemical Engineering Jinggangshan University Ji'an343009 China Beijing Drainage Group Co. Ltd. Beijing100044 China Shandong Key Laboratory of Environmental Processes and Health Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and Engineering Shandong University Shandong Qingdao266237 China

A combined DAF-UASB-A/O system plus ceramic membrane submerged MBR (SMBR) was conducted in treating young landfill leachate with a capacity of 300 m3 /day. The degradation efficiency in biological unit and membrane filtration within 185 days of operation was investigated partly for the pollutant’s abatement and partly for high quality of permeate for UF/RO treatment as final tertiary treatment. A substantial reduced number of COD (96.8%), ammonia (83.4%) and TN (79.6%) was gained via DAF-UASB -A/O system. The dopamine modified ceramic membrane can enable SMBR to operate average 28 LMH because of good surface hydrophilicity. The dopamine modified ceramic membrane SMBR was fouling-free MBRs because immersed chemical cleaning can recover the filterability of ceramic membrane. Interestingly, enrichment of some species with the prolong of the successive anaerobic-anoxic-aerobic treatment system was companied with severe or slight suppression of other species via comparative study in sludge Day-1 and Day-185, respectively. Regarding the nitrifying and denitrifying microorganisms, simultaneous methanogensis and denitrification (SMD) process can be confirmed in the UASB because of the Thauera identified. The presence of Planctomycetes suggested anaerobic ammonium oxidation (ANAMMOX) process happened in the A/O tank. © 2024, The Authors. All rights reserved.

关键词： Ammonia

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Insights into Defect Effect of Photocatalytic 2e− Orr: Radical Reaction and Electronic Behavior

SSRN

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SSRN 2022年

作者： Shen, Yi Yao, Yanchi Lu, Lun Zhu, Chao Fang, Qile Wang, Jun Song, Shuang Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province College of Environment Zhejiang University of Technology Hangzhou310032 China State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment South China Institute of Environmental Sciences Ministry of Ecology and Environment Guangzhou510655 China College of Chemical Engineering Zhejiang University of Technology Hangzhou310032 China Advanced Institute of Natural Sciences Beijing Normal University Zhuhai Campus Zhuhai519087 China State Key Laboratory of Separation Membranes and Membrane Processes School of Environmental Science and Engineering Tiangong University Tianjin300387 China

The oxygen reduction reaction (ORR) is a promising application, but the structure-activity relationship between defect and photocatalytic 2e− ORR remains largely obscure. In this work, metal-organic frameworks (MOFs) with missing linker-cluster domain (MLCD) defects were employed to explore the underlying mechanism required for comprehensively understanding the MLCD defect effect on photocatalytic 2e− ORR, which mainly focused on the radical reaction and electronic behavior. Experiments and theoretical calculations revealed that incorporating MLCD defects significantly inhibits efficient photocatalytic kinetics, which might be attributed to the retarded charge transfer and variation in electronic behaviors. Meanwhile, the marginalized defective cluster showed undesirable electron dissipation and the augmented orbital-limited resistance induced by electron spin polarization, hindering the interfacial charge transfer through the "Ti-O" Bridge, which was unfavorable for O2 activation. This study provides insights into the internal mechanism of photocatalytic 2e− ORR for designing and optimizing excellent defective nanomaterials. © 2022, The Authors. All rights reserved.

关键词： Defects

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Photothermal conversion of CO 2 to fuel with nickel-based catalysts: A review

Environmental Functional Materials

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Environmental Functional Materials 2022年第2期1卷 204-217页

作者： Yiling He Yi Zhou Ji Feng Mingyang Xing State Environmental Protection Key Lab of Environmental Risk Assessment and Control on Chemical Processes. School of Resources & Environmental Engineering East China University of Science and Technology Shanghai 200237 China Department of Mechanical Engineering University of California Riverside Riverside CA 92521 USA Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materiobiology and Dynamic Chemistry Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science & Technology 130 Meilong Road Shanghai 200237 China

Converting CO 2 to fuel is a promising strategy to mitigate the greenhouse effect and achieve ‘carbon neutrality’. Photothermal catalysis has been widely used for CO 2 reduction because it effectively reduces the apparent activation energy of the reaction and provides milder catalytic conditions as well as higher catalytic efficiency than conventional catalytic methods. In this review, the basic principles of photothermal catalytic CO 2 reduction and the factors used to evaluate photothermal catalytic conversion efficiency are introduced. Then, the common types of Ni-based catalysts and their design strategies are summarized and discussed. Among these catalysts, metal oxides have been extensively studied and developed. Accordingly, they currently achieve product yields up to the mmol/(g·h) level. Strategies such as elemental doping and morphology control are often adopted for the modification of photothermal catalysts as a means to improve catalytic performance. Finally, future trends in the field of photothermal catalytic CO 2 reduction are proposed, including mechanistic studies, practical applications, and coupling with other carbon-neutral technologies.

关键词： CO 2 reduction Photothermal catalysis: Ni-based catalyst Selectivity Metal complex

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One Stone Two Bird:Reduced Oxide Graphene Supported G-C3n4 Quantum Dots Implements Efficient Capturing/Catalytic Polysulfides Conversion and High Sulfur Loading for Lithium-Sulfur Battery

SSRN

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SSRN 2023年

作者： Zhao, Dengke Xu, Zirui Yu, Xiaolong Chen, Minzhe Wu, Oikai Zhou, Kai Zhou, Wei Ma, Liang Wang, Nan School of Materials Science and Engineering Henan Normal University Xinxiang453007 China Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control School of Environmental Science and Engineering Guangdong University of Petrochemical Technology Guangdong Maoming525000 China College of Environment and Energy School of Environment and Energy South China University of Technology Guangzhou Higher Education Mega Center Guangzhou510006 China Center for Advanced Analytical Science School of Chemistry and Chemical Engineering Guangzhou University Guangzhou510006 China Siyuan Laboratory Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials Department of Physics Jinan University Guangdong Guangzhou510632 China

Simultaneously increasing the sulfur (S) loading and enhancing the adsorption/catalytic capacity towards lithium polysulfides (LiPSs) is necessary to design efficient carbon-based sulfur cathode for lithium-sulfur batteries (LSBs). Herein, two-dimensional reduced graphene nanosheets supported g-C3N4 quantum dots (rGO/g-C3N4 QD) composites are prepared as novel cathode materials for LSBs. Theoretical calculation and characterization show that the rGO/g-C3N4 QD can fully play each other's strengths, where rGO nanosheets with high conductive and abundant mesoporous structure achieve high S utilization and accelerate Li+ /charge transfer, C3N4 QDs with high polar enhances the capture and catalytic capabilities for LiPSs, thus inhibiting the "shuttle effect" and boosting the kinetics. Therefore, the S@rGO/C3N4 QDs cathode displays the excellent initial specific capacity (1013.9 mAh g-1) at 1C and retention capacity (935.2 mAh g-1) after 500 cycles (capacity decay of 0.016% each cycle). Even under high S loadings (16.2 mg cm-2) and poor electrolyte condition (E/S ratio is 6.0 μL/mg), it also delivers the superior initial areal capacity (16.1 mA cm-2). This study enriches the design strategies to cheap and excellent carbon-based S cathode. © 2023, The Authors. All rights reserved.

关键词： Polysulfides

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Emerging contaminants:A One Health perspective

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The Innovation 2024年第4期5卷 140-170,139页

作者： Fang Wang Leilei Xiang Kelvin Sze-Yin Leung Martin Elsner Ying Zhang Yuming Guo Bo Pan Hongwen Sun Taicheng An Guangguo Ying Bryan WBrooks Deyi Hou Damian EHelbling Jianqiang Sun Hao Qiu Timothy MVogel Wei Zhang Yanzheng Gao Myrna JSimpson Yi Luo Scott XChang Guanyong Su Bryan MWong Tzung-May Fu Dong Zhu Karl JJobst Chengjun Ge Frederic Coulon Jean Damascene Harindintwali Xiankui Zeng Haijun Wang Yuhao Fu Zhong Wei Rainer Lohmann Changer Chen Yang Song Concepcion Sanchez-Cid Yu Wang Ali El-Naggar Yiming Yao Yanran Huang Japhet Cheuk-Fung Law Chenggang Gu Huizhong Shen Yanpeng Gao Chao Qin Hao Li Tong Zhang Natàlia Corcoll Min Liu Daniel SAlessi Hui Li Kristian KBrandt Yolanda Pico Cheng Gu Jianhua Guo Jianqiang Su Philippe Corvini Mao Ye Teresa Rocha-Santos Huan He Yi Yang Meiping Tong Weina Zhang Fidèle Suanon Ferdi Brahushi Zhenyu Wang Syed AHashsham Marko Virta Qingbin Yuan Gaofei Jiang Louis A.Tremblay Qingwei Bu Jichun Wu Willie Peijnenburg Edward Topp Xinde Cao Xin Jiang Minghui Zheng Taolin Zhang Yongming Luo Lizhong Zhu Xiangdong Li DamiàBarceló Jianmin Chen Baoshan Xing Wulf Amelung Zongwei Cai Ravi Naidu Qirong Shen Janusz Pawliszyn Yong-guan Zhu Andreas Schaeffer Matthias C.Rillig Fengchang Wu Gang Yu James M.Tiedje State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China Department of Chemistry Hong Kong Baptist UniversityHong KongChina HKBU Institute of Research and Continuing Education Shenzhen Virtual University ParkShenzhenChina Technical University of Munich TUM School of Natural SciencesInstitute of Hydrochemistry85748 GarchingGermany School of Resources&Environment Northeast Agricultural UniversityHarbin 150030China Climate Air Quality Research UnitSchool of Public Health and Preventive MedicineMonash UniversityMelbourneVICAustralia Faculty of Environmental Science&Engineering Kunming University of Science&TechnologyKunming 650500China Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control School of Environmental Science and EngineeringInstitute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China Ministry of Education Key Laboratory of Environmental Theoretical Chemistry South China Normal UniversityGuangzhouGuangdong 510006China Department of Environmental Science Baylor UniversityWacoTXUSA Center for Reservoir and Aquatic Systems Research(CRASR) Baylor UniversityWacoTXUSA School of Environment Tsinghua UniversityBeijing 100084China School of Civil and Environmental Engineering Cornell UniversityIthacaNY 14853USA Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province Zhejiang University of TechnologyHangzhou 310014China School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Laboratoire d’Ecologie Microbienne Universite Claude Bernard Lyon 1UMR CNRS 5557UMR INRAE 1418VetAgro Sup69622 VilleurbanneFrance Department of Pla

Environmental pollution is escalating due to rapid global development that often prioritizes human needs over planetary *** global efforts to mitigate legacy pollutants,the continuous introduction of new substances remains a major threat to both people and the *** response,global initiatives are focusing on risk assessment and regulation of emerging contaminants,as demonstrated by the ongoing efforts to establish the UN’s Intergovernmental Science-Policy Panel on chemicals,Waste,and Pollution *** review identifies the sources and impacts of emerging contaminants on planetary health,emphasizing the importance of adopting a One Health *** for monitoring and addressing these pollutants are discussed,underscoring the need for robust and socially equitable environmental policies at both regional and international *** actions are needed to transition toward sustainable pollution management practices to safeguard our planet for future generations.

关键词： pollution planet contaminants

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Tracking performance limitations of mimo networked control systems with multiple communication constraints

arXiv

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arXiv 2019年

作者： Chen, Chao-Yang Gui, Weihua Wu, Lianghong Liu, Zhaohua Yan, Huaicheng School of Information and Electrical Engineering Hunan University of Science and Technology Xiangtan411201 China School of Information Science and Engineering Central South University Changsha410012 China Center for Polymer Studies Department of Physics Boston University BostonMA02215 United States School of Information Science and Engineering Central South University Changsha410012 China School of Information and Electrical Engineering Hunan University of Science and Technology Xiangtan411201 China Key Laboratory of Advanced Control and Optimization for Chemical Process of Ministry of Education East China University of Science and Technology Shanghai200237 China College of Mechatronics and Control Engineering Hubei Normal University Huangshi435002 China

In this paper, the tracking performance limitation of networked control systems (NCSs) is studied. The NCSs is considered as continuous-time linear multi-input multi-output (MIMO) systems with random reference noises. The controlled plants include unstable poles and non-minimum phase (NMP) zeros. The output feedback path is affected by multiple communication constraints. We focus on some basic communication constraints, including additive white noise (AWN), quantization noise, bandwidth, as well as encoder-decoder. The system performance is evaluated with the tracking error energy, and used a two-degree of freedom (2DOF) controller. The explicit representation of the tracking performance is given in this paper. The results indicate the tracking performance limitations rely to internal characteristics of the plant (unstable poles and NMP zeros), reference noises (the reference noise power distribution (RNPD) and its directions) and the characteristics of communication constraints. The characteristics of communication constraints include communication noise power distribution (CNPD), quantization noise power distribution (QNPD), and their distribution directions, transform bandwidth allocation (TBA), transform encoder-decoder allocation (TEA), and their allocation directions, and NMP zeros and MP part of bandwidth. Moreover, the tracking performance limitations are also affected by the angles between the each transform NMP zero direction and RNPD direction, and these angles between each transform unstable poles direction and the direction of communication constraint distribution/allocation. In addition, for MIMO NCSs, bandwidth (there are not identical two channels) always can affects the direction of unstable poles, and the channel allocation of bandwidth and encode-decode may be used for a feasible method for the performance allocation of each channels. Lastly, a instance is given for verifying the effectiveness of the theoretical outcomes. Copyright © 2019, The Aut

关键词： Bandwidth

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Multi-Convergence-Angle Ptychography with Simultaneous Strong Contrast and High Resolution

arXiv

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arXiv 2024年

作者： Mao, Wei Zhang, Weiyang Huang, Chen Zhou, Liqi Kim, Judy S. Gao, Si Lei, Yu Wu, Xiaopeng Hu, Yiming Pei, Xudong Fang, Weina Liu, Xiaoguo Song, Jingdong Fan, Chunhai Nie, Yuefeng Kirkland, Angus I. Wang, Peng National Laboratory of Solid-State Microstructures Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied Sciences Collaborative Innovation Centre of Advanced Microstructures Nanjing University Nanjing210093 China Department of Physics University of Warwick CoventryCV4 7AL United Kingdom The Rosalind Franklin Institute Harwell Campus DidcotOX11 0QX United Kingdom Department of Materials University of Oxford Parks Road OxfordOX1 3PH United Kingdom Institute of Materiobiology College of Science Shanghai University Shanghai200444 China College of Materials Science and Engineering Nanjing Tech University Nanjing210009 China Shanghai Key Laboratory of Green Chemistry and Chemical Processes Department of Chemistry School of Chemistry and Molecular Engineering East China Normal University Shanghai200241 China School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules National Center for Translational Medicine Shanghai Jiao Tong University Shanghai200240 China State Key Laboratory of Infectious Disease Prevention and Control National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing100052 China

Advances in bioimaging methods and hardware facilities have revolutionised the determination of numerous biological structures at atomic or near-atomic resolution. Among these developments, electron ptychography has recently attracted considerable attention because of its superior resolution, remarkable sensitivity to light elements, and high electron dose efficiency. Here, we introduce an innovative approach called multi-convergence-angle (MCA) ptychography, which can simultaneously enhance both contrast and resolution with continuous information transfer across a wide spectrum of spatial frequency. Our work provides feasibility of future applications of MCA-ptychography in providing high-quality two-dimensional images as input to three-dimensional reconstruction methods, thereby facilitating more accurate determination of biological structures. Copyright © 2024, The Authors. All rights reserved.

关键词： Bioimaging

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Unravelling the Synergy between Oxygen Vacancies and Oxygen Substitution in BiO2−xfor Efficient Molecular‐Oxygen Activation

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Angewandte Chemie 2019年第9期132卷

作者： Yueshuang Mao Pengfei Wang Lina Li Zongwei Chen Haitao Wang Yi Li Sihui Zhan MOE Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution Control College of Environmental Science and Engineering Nankai University Tianjin 300350 P. R. China School of Energy and Environmental Engineering Hebei University of Technology Tianjin 300401 P. R. China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Shanghai 201800 P. R. China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China Department of Chemistry Tianjin University Tianjin 300072 P. R. China

Defects in nanomaterials often lead to properties that are absent in their pristine counterparts. To date, most studies have focused on the effect of single defects, while ignoring the synergy of multiple defects. In this study, a model of photocatalytic O 2 activation was selected to unravel the role of dual defects by decorating bismuth oxide with surface O vacancies and bulk O substitution simultaneously. The introduction of dual defects led to a spatial and electronic synergistic process: i) O substitution induced a local electric field in the bulk of BiO 2− x , which promoted bulk separation of electrons and holes immediately after their generation; ii) O vacancies efficiently lowered the conduction band, served as the capture center for electrons, and thus facilitated the adsorption and activation of O 2 . This effect was greatly promoted by the coexistence of bulk O substitution, and DFT calculations showed that only O substitution near an O vacancy could have this effect.

关键词： Duale Defekte Ladungsnutzung Nanomaterialien Photokatalyse Sauerstoffaktivierung

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Unraveling the Interfacial Charge Migration Pathway at the Atomic Level in a Highly Efficient Z‐Scheme Photocatalyst

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Angewandte Chemie 2019年第33期131卷

作者： Pengfei Wang Yueshuang Mao Lina Li Zhurui Shen Xiao Luo Kaifeng Wu Pengfei An Haitao Wang Lina Su Yi Li Sihui Zhan MOE Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution Control College of Environmental Science and Engineering Nankai University Tianjin 300350 P. R. China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Shanghai 201800 P. R. China School of Materials Science and Engineering Nankai University Tianjin 300350 P. R. China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 P. R. China Department of Chemistry Tianjin University Tianjin 300072 P. R. China

A highly efficient Z‐scheme photocatalytic system constructed with 1D CdS and 2D CoS 2 exhibited high photocatalytic hydrogen‐evolution activity of 5.54 mmol h −1 g −1 with an apparent quantum efficiency of 10.2 % at 420 nm. More importantly, its interfacial charge migration pathway was unraveled: The electrons are efficiently transferred from CdS to CoS 2 through a transition atomic layer connected by Co–S 5.8 coordination, thus resulting in more photogenerated carriers participating in surface reactions. Furthermore, the charge‐trapping and charge‐transfer processes were investigated by transient absorption spectroscopy, which gave an estimated charge‐separation yield of approximately 91.5 % and a charge‐separated‐state lifetime of approximately (5.2±0.5) ns in CdS/CoS 2 . This study elucidates the key role of interfacial atomic layers in heterojunctions and will facilitate the development of more efficient Z‐scheme photocatalytic systems.

关键词： Direkte Z-Schema-Photokatalysatoren Heteroübergänge Ladungsmigration Photokatalyse Schnittstellen

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FERMENTATION AND GENETIC-ENGINEERING - PROBLEMS AND PROSPECTS

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BIO-TECHNOLOGY 1983年第10期1卷 847-&页

作者： BULL, DN Daniel N. Bull Ph.D. is a consultant in fermentation technology and president of Satori Corporation P.O. Box 1730 Montclair N.J. 07042. (201) 783-9787.REFERENCES Graff G.M. Short H. and Keene J.1983. Gene-splicing methods move from lab to plant. Chem. Eng.90: 22-27.|ISI|Broda P.1979. p. 1-3. Plasmids. W. H. Freeman Oxford and San Francisco.Donoghue D.J. and Sharp P.A.1978. Construction of a hybrid bacteriophage-plasmid recombinant DNA vector. J. Bact.136: 1192-1196.|PubMed|ISI|ChemPort|Bok S.H. Hoppe D. Mueller D.C. and Lee S.E.1983. Improving the production of recombinant DNA proteins through fermentation development. Abstract from 186th ACS Natl. Mtg. Washington D.C. Sept. 1.Maniatis T. Fritsch E.F. and Sam-brook J.1982. p. 88. Molecular Cloning. Cold Spring Harbor Laboratory. Guidelines for research involving recombinant DNA molecules June 1983 Fed. Reg.48: 24556-24581. Modifications of physical containment recommendations for large-scale uses of organisms containing recombinant DNA molecules. 1983. Recomb. DNA Tech. Bull.6: 69-70.Bull D.N. Thoma R.W. and Stinnett T.E.1983. Bioreactors for submerged culture. In:Adv. in Biotechnological Proc. A. Mizrahi and A. L. van Wezel (eds.) 1: 1-30.Schmidli B.L. and Swartz R.W.1982. Design considerations for aseptic fermentation. Presentation at 184th ACS Natl. Mtg. Kanas City MO.Sittig W.1982. The present state of fermentation reactors. J. Chem. Tech. Biotechnol.32: 47-58.|ISI|Strek F.1963. Intl. Chem. Eng.3: 533.Uhl V.W. and Gray J.B.1996. Mixing Theory and Practice Vol. I. Academic Press New York.Peters M.S. and Timmerhaus K.D.1968. p. 542. Plant Design and Economics for Chemical Engineers. McGraw-Hill New York.Dickey D.S. and Hicks R.W. Fundamentals of agitation. Chem. Eng.83: 93-100.Oldshue J.Y.1983. Fluid mixing technology and practice. Chem. Eng.90: 82-108.Kipke K.D.1981. Heat transfer in aerated non-Newtonian fluids. Abstract from 2nd Eur. Cong. Biotech. Eastbourne UK April 5-10.Blakebrough N. McM

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