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Technologies for pollutant removal and resource recovery from blackwater:a review

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Frontiers of Environmental Science & Engineering 2023年第7期17卷 57-77页

作者： Wei Zhang Huaqiang Chu Libin Yang Xiaogang You zhenjiang yu Yalei Zhang Xuefei Zhou State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China

Blackwater(BW),consisting of feces,urine,flushing water and toilet paper,makes up an important portion of domestic wastewater.The improper disposal of BW may lead to environmental pollution and disease transmission,threatening the sustainabie development of the world.Rich in nutrients and organic matter,BW could be treated for resource recovery and reuse through various approaches.Aimed at providing guidance for the future development of BW treatment and resource recovery,this paper presented a literature review of BWs produced in different countries and types of toilets,including their physiochemical characteristics,and current treatment and resource recovery strategies.The degradation and utilization of carbon(C),nitrogen(N)and phosphorus(P)within BW are underlined.The performance of different systems was classified and summarized.Among all the treating systems,biological and ecological systems have been long and widely applied for BW treatment,showing their universality and operability in nutrients and energy recovery,but they are either slow or ineffective in removal of some refractory pollutants.Novel processes,especially advanced oxidation processes(AOPs),are becoming increasingly extensively studied in BW treatment because of their high efficiency,especially for the removal of micropollutants and pathogens.This review could serve as an instructive guidance for the design and optimization of BW treatment technologies,aiming to help in the fulfilment of sustainable human excreta management.

关键词： Blackwater Water-flushing toilet Sanitation Nutrientrecovery Waterreuse Sustainable development

Unraveling the reaction mechanism of low dose Mn dopant in Ni(OH)_(2) supercapacitor electrode

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Journal of Energy Chemistry 2021年第10期30卷 497-506,I0013页

作者： Zhiguo Zhang Hua Huo zhenjiang yu Lizhi Xiang Bingxing Xie Chunyu Du Jiajun Wang Geping Yin Key Laboratory of Materials for New Energy Conversion and Storage(Ministry of Industry and Information Technology) School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina

Mn doping is deemed as a promising strategy to improve the electrochemical performance of the a-Ni(OH)_(2)battery-type supercapacitor electrode.However,the internal structure evolution,the pathways and the dynamics of the proton/intercalated anion migration,as well as the functioning mechanism of Mn dopant to stabilize the layered structure during cycles remain unclear.Here,we unveil that irreversible oxidization of Mn^(3+)at the initial CV cycles,which will remain as Mn^(4+)in the NiO_(2)slabs after the first oxidization to effectively suppress the phase transformation fromα-Ni(OH)_(2)/γ-NiOOH toβ-Ni(OH)_(2)/β-NiOOH and further maintain the structural integrity of electrode.With a synergistic combination of theoretical calculations and various structural probes including XRD and^(2)H MAS solid state NMR,we decode the structure evolution and dynamics in the initial CV(cyclic voltammetry)cycles,including the absorption/desorption of hydrogen containing species,migration of intercalated anions/water molecules and the change of interlayer space.This present work elucidates a close relationship between doping chemistry and structural reliability,paving a novel way of reengineering supercapacitor electrode materials.

关键词： Reaction mechanism Structure evolution ^(2)H MAS NMR Layered double hydroxides Local environments

Isolation of a Halophilic Bacterium, Bacillus sp. Strain NY-6 for Organic Contaminants Removal in Saline Wastewater on Ship

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Journal of Marine Science and Application 2013年第2期12卷 245-249页

作者： Jie Gao zhenjiang yu Xiaohui Zhang Dan Zhao Fangbo Zhao Key Laboratory of Superlight Materials and Surface Technologies Ministry of Education Harbin Engineering University Harbin 150001 China Department of Pathology No. 4 Hospital of Harbin Medical University Harbin 150001 China State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology Harbin 150090 China

如果，这研究的目的是检验杆菌细菌的某些紧张，能在干燥粉末产品幸存并且如果那么，细菌能降级在一艘轮船上的盐的废水的器官的沾染物。作为学习的部分，我们孤立 7 驯养的紧张说出 NY1， NY2， ... ，并且 NY7，紧张 NY6 出现了为有... 详细信息

如果，这研究的目的是检验杆菌细菌的某些紧张，能在干燥粉末产品幸存并且如果那么，细菌能降级在一艘轮船上的盐的废水的器官的沾染物。作为学习的部分，我们孤立 7 驯养的紧张说出 NY1， NY2， ... ，并且 NY7，紧张 NY6 出现了为有机物降级有最好的表演并且能在干燥粉末幸存超过 3 个月。NY6 作为杆菌 aerius 被识别，基于词法并且药品化学药品性质。它的最佳的生长条件如下：咸度是 2% ；温度是 37 吗？？

关键词：芽孢杆菌含盐废水污染物去除应变船舶嗜盐菌最佳生长条件细菌降解

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耐火砖材料的循环利用与资源化利用技术研究

工程建设（维泽科技） 2024年第4期7卷 197-200页

作者：于振江肖涛营口市谦芮钢材制品有限公司辽宁营口115100 辽宁中镁高温材料有限公司辽宁大石桥115100

随着工业化进程的不断推进和经济的快速发展,耐火材料作为重要的工业原材料,在各种高温工业领域中发挥着不可替代的作用。然而,随着耐火材料的广泛应用和大规模生产,废弃耐火材料的处理和资源化利用问题日益突显。特别是碱性镁质耐火砖... 详细信息

随着工业化进程的不断推进和经济的快速发展,耐火材料作为重要的工业原材料,在各种高温工业领域中发挥着不可替代的作用。然而,随着耐火材料的广泛应用和大规模生产,废弃耐火材料的处理和资源化利用问题日益突显。特别是碱性镁质耐火砖作为一种常见的耐火材料,在使用过程中产生的大量废弃材料给环境带来了不小的压力。文章探讨碱性镁质耐火砖的资源化利用技术,包括废弃砖材料特性分析、回收加工方法、再生制备新材料以及工艺优化等方面,为推动碱性镁质耐火砖资源化利用技术的发展提供理论指导和技术支持。

关键词：耐火砖循环利用技术

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耐火砖在新能源领域中的应用与发展趋势分析

智能城市应用 2024年第4期7卷 64-66页

作者：肖涛于振江辽宁中镁高温材料有限公司辽宁大石桥115100 营口市谦芮钢材制品有限公司辽宁营口115100

随着全球能源需求的不断增长和对环境保护的日益关注,新能源技术的发展已经成为解决能源和环境问题的重要途径之一。在新能源领域的不断探索和创新中,碱性镁质耐火砖作为一种关键的耐火材料,正逐渐受到人们的重视和关注。其在高温稳定... 详细信息

随着全球能源需求的不断增长和对环境保护的日益关注,新能源技术的发展已经成为解决能源和环境问题的重要途径之一。在新能源领域的不断探索和创新中,碱性镁质耐火砖作为一种关键的耐火材料,正逐渐受到人们的重视和关注。其在高温稳定性、抗侵蚀性和导热性能方面的优异表现,使其成为光热发电、风力发电、氢能产业、生物质能源等领域中不可或缺的材料之一。文章旨在对碱性镁质耐火砖在新能源领域中的应用与发展趋势进行深入分析,探讨其优势、应用场景以及未来的发展方向,以期为促进清洁能源技术的发展提供参考和借鉴。

关键词：耐火砖新能源领域发展趋势

Unraveling the advances of trace doping engineering for potassium ion battery anodes via tomography

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Journal of Energy Chemistry 2021年第7期30卷 355-363页

作者： zhenjiang yu Ruhong Li Kedi Cai yudong Yao Junjing Deng Shuaifeng Lou Mi Lu Qinmin Pan Geping Yin Zaixing Jiang Jiajun Wang MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina Liaoning Engineering Technology Research Center of Supercapacitor Bohai UniversityJinzhou 121013LiaoningChina Advanced Photon Source Argonne National LaboratoryLemontIL 60439USA Key Laboratory of Functional Materials and Applications of Fujian Province School of Materials Science and EngineeringXiamen University of TechnologyXiamen 361024FujianChina

Doping have been considered as a prominent strategy to stabilize crystal structure of battery materials during the insertion and removal of alkali ions.The instructive knowledge and experience acquired from doping strategies predominate in cathode materials,but doping principle in anodes remains unclear.Here,we demonstrate that trace element doping enables stable conversion-reaction and ensures structural integrity for potassium ion battery(PIB) anodes.With a synergistic combination of X-ray tomography,structural probes,and charge reconfiguration,we encode the physical origins and structural evolution of electro-chemo-mechanical degradation in PIB anodes.By the multiple ion transport pathways created by the orderly hierarchical pores from "surface to bulk" and the homogeneous charge distribution governed in doped nanodomains,the anisotropic expansion can be significantly relieved with trace isoelectronic element doping into the host lattice,maintaining particle mechanical integrity.Our work presents a close relationship between doping chemistry and mechanical reliability,projecting a new pathway to reengineering electrode materials for next-generation energy storage.

关键词： Trace doping Conversion-type electrode Structural evolution X-ray imaging Hierarchical integrity

Dynamic Analysis of Propulsion Mechanism Directly Driven by Wave Energy for Marine Mobile Buoy

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Chinese Journal of Mechanical Engineering 2016年第4期29卷 710-715页

作者： yu zhenjiang ZHENG Zhongqiang YANG Xiaoguang CHANG Zongyu College of Engineering Ocean University of China Qingdao 266100 China Key Lab of Ocean Engineering of Shandong Province Qingdao 266100 China

Marine mobile buoy（MMB） have many potential applications in the maritime industry and ocean science.Great progress has been made,however the technology in this area is far from maturity in theory and faced with many difficulties in application.A dynamic model of the propulsion mechanism is very necessary for optimizing the parameters of the MMB,especially with consideration of hydrodynamic force.The principle of wave-driven propulsion mechanism is briefly introduced.To set a theory foundation for study on the MMB,a dynamic model of the propulsion mechanism of the MMB is obtained.The responses of the motion of the platform and the hydrofoil are obtained by using a numerical integration method to solve the ordinary differential equations.A simplified form of the motion equations is reached by omitting terms with high order small values.The relationship among the heave motion of the buoy,stiffness of the elastic components,and the forward speed can be obtained by using these simplified equations.The dynamic analysis show the following：The angle of displacement of foil is fairly small with the biggest value around 0.3 rad;The speed of mobile buoy and the angle of hydrofoil increased gradually with the increase of heave motion of buoy;The relationship among heaven motion,stiffness and attack angle is that heave motion leads to the angle change of foil whereas the item of speed or push function is determined by vertical velocity and angle,therefore,the heave motion and stiffness can affect the motion of buoy significantly if the size of hydrofoil is kept constant.The proposed model is provided to optimize the parameters of the MMB and a foundation is laid for improving the performance of the MMB.

关键词： propulsion mechanism marine mobile buoy dynamic model hydrodynamics Morision＇s equation

AFSTGCN:Prediction for multivariate time series using an adaptive fused spatial-temporal graph convolutional network

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Digital Communications and Networks 2024年第2期10卷 292-303页

作者： yuteng Xiao Kaijian Xia Hongsheng Yin yu-Dong Zhang zhenjiang Qian Zhaoyang Liu yuehan Liang Xiaodan Li School of Information and Control Engineering China University of Mining and TechnologyXuzhou221116China Department of Informatics University of LeicesterLeicesterLE17RHUK The Affiliated Changshu Hospital of Soochow University Changshu215500China School of Computer Science and Engineering Changshu Institute of TechnologySuzhou215500China

The prediction for Multivariate Time Series(MTS)explores the interrelationships among variables at historical moments,extracts their relevant characteristics,and is widely used in finance,weather,complex industries and other fields.Furthermore,it is important to construct a digital twin system.However,existing methods do not take full advantage of the potential properties of variables,which results in poor predicted accuracy.In this paper,we propose the Adaptive Fused Spatial-Temporal Graph Convolutional Network(AFSTGCN).First,to address the problem of the unknown spatial-temporal structure,we construct the Adaptive Fused Spatial-Temporal Graph(AFSTG)layer.Specifically,we fuse the spatial-temporal graph based on the interrelationship of spatial graphs.Simultaneously,we construct the adaptive adjacency matrix of the spatial-temporal graph using node embedding methods.Subsequently,to overcome the insufficient extraction of disordered correlation features,we construct the Adaptive Fused Spatial-Temporal Graph Convolutional(AFSTGC)module.The module forces the reordering of disordered temporal,spatial and spatial-temporal dependencies into rule-like *** dynamically and synchronously acquires potential temporal,spatial and spatial-temporal correlations,thereby fully extracting rich hierarchical feature information to enhance the predicted accuracy.Experiments on different types of MTS datasets demonstrate that the model achieves state-of-the-art single-step and multi-step performance compared with eight other deep learning models.

关键词： Adaptive adjacency matrix Digital twin Graph convolutional network Multivariate time series prediction Spatial-temporal graph

Multifunctional catalytic sites regulation of atomic-scale iridium on orthorhombic-CoSe_(2)for high efficiency dual-functional alkaline hydrogen evolution and organic degradation

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Journal of Energy Chemistry 2024年第5期92卷 271-281页

作者： Jingjing Huang Chenglin Zhong Yanjie Xia Jia Liu Guizhen Li Chao Yang Jiahong Wang Qian Wang Zhenbao Zhang Feng Yan Jianghua Wu yu Deng zhenjiang Zhou Xingchen He Paul K.Chu Woon-Ming Lau Xue-Feng yu College of Chemistry and Chemical Engineering Linyi UniversityLinyi 276005ShandongChina Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina National Laboratory of Solid State Microstructures Jiangsu Key Laboratory of Artificial Functional MaterialsCollege of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093JiangsuChina College of Biosystems Engineering and Food Science Zhejiang UniversityHangzhou 310058ZhejiangChina Department of Physics Department of Materials Science and EngineeringDepartment of Biomedical EngineeringCity University of Hong KongTat Chee AvenueKowloonHong KongChina

The earth-abundant and high-performance catalysts are crucial for commercial implementation of hydrogen evolution reaction(HER).Herein,a multifunctional site strategy to construct excellent HER catalysts by incorporating iridium(Ir)ions on the atomic scale into orthorhombic-CoSe2(Ir-CoSe_(2))was reported.Outstanding hydrogen evolution activity in alkaline media such as a low overpotential of 48.7 mV at a current density of 10 mA cm^(-2)and better performance than commercial Pt/C catalysts at high current densities were found in the Ir-CoSe_(2) samples.In the experiments and theoretical calculations,it was revealed that Ir enabled CoSe_(2)to form multifunctional sites to synergistically catalyze alkaline HER by promoting the adsorption and dissociation of H_(2)O(Ir sites)and optimizing the binding energy for H^(*)on Co sites.It was noticeable that the electrolytic system comprising the Ir-CoSe_(2)electrode not only produced hydrogen efficiently via HER,but also degraded organic pollutants(Methylene blue).The cell voltage of the dual-function electrolytic system was 1.58 V at the benchmark current density of 50 mA cm^(-2),which was significantly lower than the conventional water splitting voltage.It was indicated that this method was a novel strategy for designing advanced HER electrocatalysts by constructing multifunctional catalytic sites for hydrogen production and organic degradation.

关键词： Orthorhombic-CoSe_(2) Multifunctional sites design Hydrogen evolution reaction Synergistically catalyze Methylene blue oxidation