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SSRN 2023年

作者： Tang, Shen Zhu, Zongqiang Wang, Yaru Li, Yanhong Peng, Yuqing Zhang, Jing Nong, Peijie Pan, Shufen Zhu, Yinian College of Environmental Science and Engineering Guilin University of Technology Guilin541004 China Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology Guilin University of Technology Guilin541004 China Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area Guilin University of Technology Guilin541004 China

The efficiency of microbial degradation of organic pollutants in water is influenced by various factors, including ambient temperature, physicochemical properties of the pollutants, and the presence of other compounds in the water. Shewanella sp. has the ability to perform extracellular electron transfer through different metabolic pathways to degrade organic pollutants in water. However, the presence of specific metal compounds in the water can impact the extracellular electron transfer of Shewanella sp. and subsequently affect the efficiency of organic pollutant degradation. In this study, the degradation system of Shewanella oneidensis MR-1 and goethite was constructed with chlorpyrifos as the target contaminant. The effects of initial pH, contaminant concentration, and temperature on the removal rate of chlorpyrifos during the degradation process were investigated. The experimental conditions were optimized by response surface methodology with a Box-Behnken design (BBD). The results showed that the removal rate of chlorpyrifos was 75.71% at pH = 6.86, an initial concentration of 19.18 mg/L, and a temperature of 30.71°C. LC-MS/MS analyses showed that the degradation products were C4H11O3PS, C7H7Cl3NO4P, C9H11Cl2NO3PS, C7H7Cl3NO3PS, C9H11Cl3NO4P, C4H11O2PS, and C5H2Cl3NO. Presumably, the degradation pathways involved are: enzymatic degradation, hydrolysis, dealkylation, desulfur hydrolysis, and dechlorination. The findings of this study demonstrate the efficacy of the goethite / S. oneidensis MR-1 complex system in the removal of chlorpyrifos from water. Consequently, this research contributes to the establishment of a theoretical framework for the microbial remediation of organophosphorus pesticides in aqueous environments. © 2023, The Authors. All rights reserved.

关键词： Biodegradation

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Regenerable Graft of Laccase on Glycosylated Membrane for Treatment of Aquatic Micropollutants

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SSRN 2022年

作者： Yang, Tao Wang, Yan Li, Die Chen, Jing Zhang, Qiang Key Laboratory of New Membrane Materials Ministry of Industry and Information Technology School of Environmental and Biological Engineering Nanjing University of Science and Technology Nanjing210094 China Institute of Polymer Ecomaterials School of Environmental and Biological Engineering Nanjing University of Science and Technology Nanjing210094 China

Herein, glycosylated membrane has been developed as a regenerable matrix for the immobilization of laccase via specific carbohydrate-protein recognition to treat aquatic micropollutants. Photopolymerization of glucose-containing monomers was first conducted to generate glycopolymer brushes on the surface of PAN membrane. Laccase was then immobilized onto the membrane using Concanavalin A as the bridge. The filtration and catalytic performance of the biocatalytic membrane was evaluated using bisphenol A (BPA) as the model pollutant. The removal efficiency of BPA by immobilized laccase was 90% under pH 5.0 / 50 ℃ after 8 h and could be stable during a long-time operation. The regeneration of biocatalytic membrane was facilely conducted via elution with HCl or NaClO solutions. © 2022, The Authors. All rights reserved.

关键词： Chlorine compounds

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The Trade-Off Characteristic between Battery Thermal Runaway and Combustion

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SSRN 2024年

作者： Zhao, Liqi Hou, Junxian Feng, Xuning Xu, Chengshan Wang, Huaibin Liu, Hao Hou, Bowen Rui, Xinyu Lu, Languang Bao, Cheng Ouyang, Minggao School of Energy and Environmental Engineering University of Science and Technology Beijing Beijing100083 China State Key Laboratory of Intelligent Green Vehicle and Mobility Tsinghua University Beijing100084 China China People’s Police University Langfang065000 China

Lithium iron phosphate (LFP) lithium-ion batteries are widely believed to be more thermally safe than nickel-rich layered LiNixCoyMnzO2 (NCM) batteries because LFP cathodes are more stable. However, LFP batteries have been reported to cause serious combustion accidents. The relationship between internal thermal runaway and external combustion in LFP and NCM batteries remain unclear. Herein, we found that there is a trade-off between thermal runaway within the battery and external combustion. Cathode oxidizability is linearly correlated with the intensity of thermochemical reactions within battery components. The nickel-rich LiNi0.9Co0.05Mn0.05O2|Graphite (NCM955|Gr) battery exhibits the most intense exothermic reactions and energy release due to the strong oxidation of its cathode, leading to the highest thermal runaway temperature of 862.4°C within the battery. The LiFePO4|Graphite (LFP|Gr) battery with the weak cathode oxidizability shows the lowest temperature of 297.4°C within the battery, but with the highest laminar flame speed of 55cm s-1 outside the battery. The reason for this is that the LFP cathode rarely oxidizes the electrolyte, instead, the electrolyte reacts with the anode primarily, thereby generating substantial reductive gases and accumulating the explosion risks. This work provides the theoretical basis and data support for future battery selection and design. © 2024, The Authors. All rights reserved.

关键词： Cathodes

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Corrigendum to “Efficient adsorption of Mn(II) by layered double hydroxides intercalated with diethylenetriaminepentaacetic acid and the mechanistic study” [J. Environ. Sci. 85 (2019) 56–65]

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Journal of environmental sciences 2020年第4期32卷 411-412页

作者： Mingjie Huang Yingxin Zhang Wei Xiang Tao Zhou Xiaohui Wu Juan Mao School of Environmental Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China Key Laboratory of Water and Wastewater Treatment(HUST) MOHURDWuhan 430074China

The authors regret to inform that there were some mistakes in the part of thermodynamics studies,the calculated enthalpy,entropy and Gibbs energy were wrong due to the misunder-standing of the equilibrium constant(Kads).

关键词： thermodynamics entropy double

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Isotropic compression behavior of granular assembly with non-spherical particles by X-ray micro-computed tomography and discrete element modeling

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Journal of Rock Mechanics and Geotechnical engineering 2021年第5期13卷 972-984页

作者： Nan Zhang Ahmadreza Hedayat Shaoyang Han Runlin Yang Héctor Gelber Bolaños Sosa Juan JoséGonzález Cárdenas Guido Edgard SalasÁlvarez Department of Civil and Environmental Engineering Colorado School of Mines1500 Illinois St.GoldenCO80401USA Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering Hohai UniversityNanjing210098China School of Civil and Resource Engineering University of Science and Technology BeijingBeijing100083China Universidad Nacional de San Agustín de Arequipa ArequipaPeru

The particle morphological properties,such as sphericity,concavity and convexity,of a granular assembly significantly affect its macroscopic and microscopic compressive behaviors under isotropic loading ***,limited studies on investigating the microscopic behavior of the granular assembly with real particle shapes under isotropic compression were *** this study,X-ray computed tomography(mCT)and discrete element modeling(DEM)were utilized to investigate isotropic compression behavior of the granular assembly with regard to the particle morphological properties,such as particle sphericity,concavity and interparticle *** mCT was first used to extract the particle morphological parameters and then the DEM was utilized to numerically investigate the influences of the particle morphological properties on the isotropic compression *** image reconstruction from mCT images indicated that the presented particle quantification algorithm was robust,and the presented microscopic analysis via the DEM simulation demonstrated that the particle surface concavity significantly affected the isotropic compression *** observations of the particle connectivity and local void ratio distribution also provided insights into the granular assembly under isotropic *** found that the particle concavity and interparticle friction influenced the most of the isotropic compression behavior of the granular assemblies.

关键词： X-ray computed tomography(mCT) Discrete element modeling(DEM) Isotropic compression Particle surface curvature Particle morphology

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LIVESTOCK AND POULTRY MANURE MANAGEMENT FROM THE PERSPECTIVE OF CARBON NEUTRALITY IN CHINA

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Frontiers of Agricultural science and engineering 2023年第3期10卷 341-362页

作者： Leli ZHANG Reaihan E Mahmoud MALI Hongjian LIN Shuai ZHANG Shuqin JIN Zhiping ZHU Jianjun HU Yiqing YAO Yong SUN Shuiping YAN Zhidan LIU Laboratory of Environment-Enhancing Energy(E2E) College of Water Resources and Civil EngineeringChina Agricultural UniversityBeijing 100083China Key Laboratory of Agricultural Engineering in Structure and Environment Ministry of Agriculture and Rural AffairsBeijing 100083China Agricultural Engineering Research Institute Agricultural Research CenterGiza 12311Egypt College of Biosystems Engineering and Food Science Zhejiang UniversityHangzhou 310058China College of Animal Science and Technology China Agricultural UniversityBeijing 100193China Research Center for Rural Economy Ministry of Agriculture and Rural AffairsBeijing 100810China Institute of Environmental and Sustainable Development in Agriculture Chinese Academy of Agriculture SciencesBeijing 100081China College of Mechanical&Electrical Engineering Henan Agricultural UniversityZhengzhou 450002China College of Mechanical and Electrical Engineering Northwest A&F UniversityYangling 712100China College of Engineering Northeast Agricultural UniversityHarbin 150030China College of Engineering Huazhong Agricultural UniversityWuhan 430070China

The rapid growth of the livestock and poultry production in China has led to a rise in manure generation,which contributes to the emissions of GHGs(greenhouse gases including CH_(4),N_(2)O and CO_(2))and other harmful gases(NH_(3),H_(2)S).Reducing and managing carbon emissions has become a critical global environmental imperative due to the adverse impacts of *** previous reviews that focused on resource recovery,this work provides an unique insight of transformation from resource-oriented manure treatment to integration of resource recovery with pollution reduction,carbon accounting and trading,focusing on the sustainable development of manure management *** the importance of accounting methodologies for carbon emission and trading system toward carbon neutrality society,suggestions and strategies including attaching high importance to the development of more accuracy accounting methodologies and more practical GHG emission reduction methodologies are given in this *** work directs the establishment of carbon reduction methodologies and the formulation of governmental policies for livestock and poultry manure management system in China.

关键词： valorization of animal manure manure management carbon emission carbon footprint methodology carbon trading

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Numerical Simulation of Tidal Beach Seawater-Groundwater Circulations Using Dimensionless Method

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SSRN 2024年

作者： Wang, Wei Cui, Laitong Geng, Xiaolong Luo, Manhua Yu, Shengchao Wang, Qianqian Li, Hailong School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen518055 China State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen China School of Water Resources and Environment China University of Geosciences-Beijing Beijing100083 China Department of Earth Sciences University of Hawai‘i at Mānoa HonoluluHI96822 United States Water Resources Research Center University of Hawai‘i at Mānoa HonoluluHI96822 United States Department of Civil and Resource Engineering Center for Water Resources Studies Dalhousie University HalifaxNS Canada State Key Laboratory of Estuarine and Coastal Research East China Normal University Shanghai China

Our previous study developed a dimensionless model to quantify seawater-groundwater circulations in tidally influenced beach systems, wherein the model parameters were non-dimensionalized. Although the model can be reasonably transformed to apply to various dimensionalized beach domains with slopes ranging from 3.16% to 31.6%, the model was limited by a narrow applicable range of the permeability parameter (K) values, excluding very permeable or less permeable beaches (i.e., the hydraulic conductivity K > 10-3 m/s or © 2024, The Authors. All rights reserved.

关键词： Hydraulic conductivity

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Quantifying Energy Consumption and Trade in Kyrgyzstan Based on Energy-extended Input-output Model 3

Quantifying Energy Consumption and Trade in Kyrgyzstan Based...

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2021 3rd International Conference on E-Business and E-Commerce engineering, EBEE 2021

作者： Zhang, Hao Li, Yongping Liu, Jing Huang, Guohe Chen, Lianrong School of Environmental Science and Engineering Xiamen University of Technology Xiamen361024 China State Key Laboratory of Water Environment Simulation School of Environment Beijing Normal University Beijing100875 China

ISBN: (纸本)9781450387392

Rapid economic growing of world has brought up serious energy shortage. In this study, an energy-extended input-output model (EIOM) is advanced for quantifying the energy consumption and energy trade, as well as disclosing embodied energy flow inner economic sectors. Application based on the model is studied in Kyrgyzstan. The major findings are: (i) Kyrgyzstan was a country relying on energy import in 2014 (reaching up to 72.0 × 106 tce);(ii) ELE (Electricity supply) andWAT (Water supply) used more energy but created lower economic output (total energy use coefficient is 17.4 × 10-3 and 16.2 × 103 tce, respectively;(iii) MAN (Manufacturing) is the main sector which supplied 21.7 × 106 tce to other sectors and SER (Service) is the main energy receiver that 9.6 × 106 tce inflows in it. Results can provide scientific guidance for the energy use planning in Kyrgyzstan within a multi-sector context. To develop sustainably, local government should explore more available energy of MAN and develop its economic vigorously, advance the efficiency of ELE andWAT's energy use, as well as facilitate the transactions between MIN (Mining), CON (Construction) and others. © 2021 ACM.

关键词： Commerce

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Lifecycle of cobalt-based alloy for artificial joints:From bulk material to nanoparticles and ions due to bio-tribocorrosion

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Journal of Materials science & technology 2020年第11期42卷 98-106页

作者： Zhongwei Wang Yu Yan Yang Wang Yanjing Su Lijie Qiao Beijing Advanced Innovation Center for Materials Genome Engineering Corrosion and Protection CenterKey Laboratory for Environmental Fracture(MOE)University of Science and Technology BeijingBeijing 100083China College of Materials Science and Engineering Chongqing University of TechnologyChongqing 400054China Corrosion and Protection Center Advanced Institute for Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China

The release of debris and ions from metallic artificial joints during bio-tribocorrosion posed a severe threat to patient *** this work,the lifecycle of a Co Cr Mo alloy was presented by investigating the subsurface microstructure transformation *** results showed that the originally coarse grains changed to nano-grains(NGs)on the top region of the alloy,and nanoparticles(NPs)were torn off the surface,which were then blocked by the *** agglomerated alloy NPs contained in the tribofilm transformed into debris after being removed from the alloy *** majority of the torn-off NPs were corroded and released ions into solution due to their high chemical activities.

关键词： Cobalt-based alloy Artificial joints Wear mechanism Bio-t Ribocorrosion TEM

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Evaluation of Phytohormone Facilitation in Microalgal Biomass Production Using Mathematical Modeling

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SSRN 2024年

作者： Wang, Zhuoxuan Su, Zi-Ci Zhou, Guoquan Luo, Yu Chen, Hui-Ran Chen, Zhuo Li, Xuan Liang, Chengyue Dao, Guohua Faculty of Environmental Science and Engineering Kunming University of Science and Technology Kunming650500 China School of Energy and Environment Science Yunnan Normal University Kunming650500 China Yunnan Key Laboratory of Pollution Process and Management of Plateau Lake -Watershed Yunnan Research Academy of Eco-environmental Sciences Yunnan Kunming650034 China School of Environment Tsinghua University Beijing100084 China

How to improve the growth efficiency of microalgae is the bottleneck of microalgae large-scale application. The addition of trace substances can promote the growth of microalgae, but there is no suitable model that can be used to predict the effects of trace substances concentration on the growth of microalgae. In this paper, a mathematical model based on hormesis is proposed to describe the effects produced by trace substances on the biomass of microalgae and applied to assess the dose-response of four phytohormones on Scenedesmus sp. LX1 with a high degree of confidence (above 90%). Several new mathematical parameters, such as starting effective dose (SD), inflection point dose (PD), concentration for 0% of maximal effect, end effective dose (ED), maximum stimulatory effect (MSE), and maximum inhibitory effect (MIE), were extracted and useful to guide the usage of trace substances. Additionally, the model can be well applied to screen the trace substances, dominant algal species and determine the concentration range. This study provides valuable insights into the potential of using phytohormones to enhance the biomass production of microalgae and offers a new approach to optimize the culture of microalgae. © 2024, The Authors. All rights reserved.

关键词： Microalgae

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