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Temporal dimension and water quality control in an emission trading scheme based on water environmental

Zhaoxing HAN, Zhenyao SHEN, Yongwei GONG, Qian HONG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 1,   Pages 119-129 doi: 10.1007/s11783-011-0272-z

Abstract: Water environmental functional zone (WEFZ) is used to determine the water quality standard and identifyIn this study, a new emission trading scheme was addressed based on WEFZ, accounting for both the temporalA temporal factor of emission trading was proposed based on variations in the environmental capacityA water quality-control scheme was suggested based on the water quality requirement in the water functionalThe temporal and spatial factors above should be incorporated into the emission trading scheme based

Keywords： emission trading     water functional zone     water quality control    

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PV based water pumping system for agricultural irrigation

T A BINSHAD,K VIJAYAKUMAR,M KALEESWARI

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 319-328 doi: 10.1007/s11708-016-0409-7

Abstract: This paper investigates the operation and analysis of the photovoltaic water pumping system in detailPower electronic controllers were designed and developed for the water pumping system using a boost converterFurther, the detailed method of analysis and simulation characteristics of such PV water pumping systemWith the concern of shortage of fossil fuel, global warming and energy security, the proposed PV basedwater pumping system can meet the significant demand of electricity and serve for the agricultural sector

Keywords： photovoltaic water pumping system     power electronic controller     solar irradiances and temperature    

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A novel hybrid model for water quality prediction based on VMD and IGOA optimized for LSTM

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1688-y

Abstract:

● A novel VMD-IGOA-LSTM model has proposed for the prediction of water

Keywords： Water quality prediction     Grasshopper optimization algorithm     Variational mode decomposition     Long short-term    

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State-of-the-art progress in overall water splitting of carbon nitride based photocatalysts

Bing LUO, Yuxin ZHAO, Dengwei JING

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 600-620 doi: 10.1007/s11708-021-0737-0

Abstract: Converting solar energy into hydrogen (H ) by photocatalytic water splitting is a promising approachHalf decade has passed since the discovery of photo-induced water splitting phenomenon on TiO photoanodeTherefore, in this review, the state-of-the-art advances in g-C N based photocatalysts for overall water

Keywords： photocatalysis     overall water splitting     carbon nitride     hydrogen    

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A cellphone-based colorimetric multi-channel sensor for water environmental monitoring

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1590-z

Abstract:

● A cellphone-based colorimetric multi-channel sensor for in-field

Keywords： Colorimetric analysis     Multi-channel sensor     Cellphone     Water quality indexes     Environmental monitoring    

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Structural engineering of transition metal-based nanostructured electrocatalysts for efficient water

Yueqing Wang, Jintao Zhang

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4,   Pages 838-854 doi: 10.1007/s11705-018-1746-3

Abstract: Water splitting is a highly promising approach for the generation of sustainable, clean hydrogen energyelectrocatalysts for oxygen evolution and hydrogen evolution reactions to lower the energy consumption in waterfascinating methods would pave the way for rational design of advanced electrocatalysts for efficient water

Keywords： water splitting     structure engineering     metal organic framework     ion exchange     synergistic effect     hybrid    

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Efficient Identification of water conveyance tunnels siltation based on ensemble deep learning

Xinbin WU; Junjie LI; Linlin WANG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 5,   Pages 564-575 doi: 10.1007/s11709-022-0829-x

Abstract: The inspection of water conveyance tunnels plays an important role in water diversion projects.Siltation is an essential factor threatening the safety of water conveyance tunnels.Based on the VGG16 network, a compact convolutional neural network (CNN) is designed as a primary learner

Keywords： water conveyance tunnels     siltation images     remotely operated vehicles     deep learning     ensemble learning    

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Ecological compensation based on willingness to accept for conservation of drinking water sources

Linyu XU,Bing YU,Yang LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 58-65 doi: 10.1007/s11783-014-0688-3

Abstract: compensation is a powerful environmental economic tool for environmental protection in areas where drinking waterWe established an ecological compensation accounting system based on respondents’ willingness to acceptuseful information for establishing ecological compensation mechanisms for conservation of drinking waterconcept and meaning of ecological compensation among residents, setting different compensation levels based

Keywords： contingent valuation method     questionnaire survey     Miyun Reservoir    

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Utilization threshold of surface water and groundwater based on the system optimization of crop planting

Qiang FU,Jiahong LI,Tianxiao LI,Dong LIU,Song CUI

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 3,   Pages 231-240 doi: 10.15302/J-FASE-2016101

Abstract: Based on the diversity of the agricultural system, this research calculates the planting structures ofThen, based on the uncertainty and randomness of the water resources system, the interval two-stage stochasticThe method considers the minimum cost of water as the objective of the uncertainty model for surfacewater and groundwater joint scheduling optimization for different planting structures.of a water- and food-conserving society and providing a more accurate management environment.

Keywords： economic-social-ecological     uncertainty     harmonious entropy     surface water and groundwater     utilization threshold    

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An evaluation model of water-saving reconstruction projects based on resource value flows

Runwen JIANG, Xiaohong CHEN, Lingchu ZHAO, Zhifang ZHOU, Tao ZHANG

Frontiers of Engineering Management 2022, Volume 9, Issue 2,   Pages 257-267 doi: 10.1007/s42524-020-0144-y

Abstract: Due to uncertainties in water supply, there is growing demand for water resource management in enterprisesIn this study, we evaluated the effects of companies’ water-saving reconstruction projects.case to construct an investment decision model to (1) calculate the internal and external costs of waterresources based on circular economic value analysis theory, and (2) locate the level of water resourcesresource flows, thereby providing guidance and suggestions for optimizing water resource flows.

Keywords： value flow analysis     ternary materials enterprises     grey situation decision analysis     water resources    

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Hydrogen production from water splitting on CdS-based photocatalysts using solar light

Xiaoping CHEN, Wenfeng SHANGGUAN

Frontiers in Energy 2013, Volume 7, Issue 1,   Pages 111-118 doi: 10.1007/s11708-012-0228-4

Abstract: In the past several years, there has been significant progress in water splitting on CdS-based photocatalystsIn this paper, recent researches into photocatalytic water splitting on CdS-based photocatalysts areFinally, the problems and future challenges in photocatalytic water splitting on CdS-based photocatalysts

Keywords： hydrogen     photocatalysis     solar conversion     cadmium sulfide (CdS) complex    

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Removal of fluoride from water using titanium-based adsorbents

Zhijian LI, Shubo DENG, Xueying ZHANG, Wei ZHOU, Jun HUANG, Gang YU

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 414-420 doi: 10.1007/s11783-010-0241-y

Abstract: Three adsorbents including TiO , Ti-Ce, and Ti-La hybrid oxides were prepared to remove fluoride from aqueous solution. The Ti-Ce and Ti-La hybrid adsorbents obtained by the hydrolysis-precipitation method had much higher sorption capacity for fluoride than the TiO adsorbent prepared through hydrolysis. Rare earth (Ce and La) oxides and TiO exhibited a synergistic effect in the hybrid adsorbents for fluoride sorption. The sorption equilibrium of fluoride on the three adsorbents was achieved within 4 h, and the pseudo-second-order model described the sorption kinetics well. The sorption isotherms fitted the Langmuir model well, and the adsorption capacities of fluoride on the Ti-Ce and Ti-La adsorbents were about 9.6 and 15.1 mg·g , respectively, at the equilibrium fluoride concentration of 1.0 mg·L , much higher than the 1.7 mg·g on the TiO . The sorption capacities of fluoride on the three adsorbents decreased significantly when the solution pH increased from 3 to 9.5. The electrostatic interaction played an important role in fluoride removal by the three adsorbents, and Fourier transform infrared (FTIR) analysis indicated that the hydroxyl groups on the adsorbent surface were involved in fluoride adsorption.

Keywords： fluoride adsorption     titanium dioxide     titanium-based adsorbent     sorption mechanism    

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MPC-based interval number optimization for electric water heater scheduling in uncertain environments

Jidong WANG, Chenghao LI, Peng LI, Yanbo CHE, Yue ZHOU, Yinqi LI

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 186-200 doi: 10.1007/s11708-019-0644-9

Abstract: and model predictive control are proposed to handle the uncertain-but-bounded parameters in electric waterFirst of all, interval numbers are used to describe uncertain parameters including hot water demand,Moreover, the traditional thermal dynamic model of electric water heater is transformed into an intervalnumber model, based on which, the day-ahead load scheduling problem with uncertain parameters is formulatedincorporates both forecasts and newly updated information is utilized to make and execute electric water

Keywords： electric water heater     load scheduling     interval number optimization     model predictive control     uncertainty    

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Hexavalent chromium in drinking water: Chemistry, challenges and future outlook on Sn(II)- and photocatalyst-based

Haizhou Liu, Xuejun Yu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1267-4

Abstract: Abstract • Wide occurrence of Cr(VI) in US source drinking water. • A strong dependence of occurrenceon groundwater sources. • Elucidate Redox and equilibrium chemistry of Cr(VI). • Sn(II)-based and TiO2-based reductive treatments hold extreme promise. • Key challenges include residual waste, Cr(VI) re-generationChromium (Cr) typically exists in either trivalent and hexavalent oxidation states in drinking water,To overcome these challenges, reductive Cr(VI) treatment technologies based on the application of stannous

Keywords： Chromium     Chemistry     Treatment     Future outlook    

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Scenario-based assessment and multi-objective optimization of urban development plan with carrying capacityof water system

Yilei Lu, Yunqing Huang, Siyu Zeng, Can Wang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 2, doi: 10.1007/s11783-019-1200-x

Abstract: Impact of urban development on water system is assessed with carrying capacity.Impacts on both water resource quantity and environmental quality are involved.three-step methodology for assessing and optimizing an urban development plan focusing on its impacts on the waterThe methodology first predicted the pressure on the water system caused by implementation of the planThe methodology enabled evaluation of the water system carrying state, taking socioeconomic development

Keywords： Urban development plan     Urban water system     Carrying capacity     Scenario analysis     Multi-objective optimization    

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Title Author Date Type Operation

Temporal dimension and water quality control in an emission trading scheme based on water environmental

Zhaoxing HAN, Zhenyao SHEN, Yongwei GONG, Qian HONG

Journal Article

PV based water pumping system for agricultural irrigation

T A BINSHAD,K VIJAYAKUMAR,M KALEESWARI

Journal Article

A novel hybrid model for water quality prediction based on VMD and IGOA optimized for LSTM

Journal Article

State-of-the-art progress in overall water splitting of carbon nitride based photocatalysts

Bing LUO, Yuxin ZHAO, Dengwei JING

Journal Article

A cellphone-based colorimetric multi-channel sensor for water environmental monitoring

Journal Article

Structural engineering of transition metal-based nanostructured electrocatalysts for efficient water

Yueqing Wang, Jintao Zhang

Journal Article

Efficient Identification of water conveyance tunnels siltation based on ensemble deep learning

Xinbin WU; Junjie LI; Linlin WANG

Journal Article

Ecological compensation based on willingness to accept for conservation of drinking water sources

Linyu XU,Bing YU,Yang LI

Journal Article

Utilization threshold of surface water and groundwater based on the system optimization of crop planting

Qiang FU,Jiahong LI,Tianxiao LI,Dong LIU,Song CUI

Journal Article

An evaluation model of water-saving reconstruction projects based on resource value flows

Runwen JIANG, Xiaohong CHEN, Lingchu ZHAO, Zhifang ZHOU, Tao ZHANG

Journal Article

Hydrogen production from water splitting on CdS-based photocatalysts using solar light

Xiaoping CHEN, Wenfeng SHANGGUAN

Journal Article

Removal of fluoride from water using titanium-based adsorbents

Zhijian LI, Shubo DENG, Xueying ZHANG, Wei ZHOU, Jun HUANG, Gang YU

Journal Article

MPC-based interval number optimization for electric water heater scheduling in uncertain environments

Jidong WANG, Chenghao LI, Peng LI, Yanbo CHE, Yue ZHOU, Yinqi LI

Journal Article

Hexavalent chromium in drinking water: Chemistry, challenges and future outlook on Sn(II)- and photocatalyst-based

Haizhou Liu, Xuejun Yu

Journal Article

Scenario-based assessment and multi-objective optimization of urban development plan with carrying capacityof water system

Yilei Lu, Yunqing Huang, Siyu Zeng, Can Wang

Journal Article