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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 ofwater quality.

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

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Water quality soft-sensor prediction in anaerobic process using deep neural network optimized by Tree-structured

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1667-3

Abstract:

● Hybrid deep-learning model is proposed for water quality prediction

Keywords： Water quality prediction     Soft-sensor     Anaerobic process     Tree-structured Parzen Estimator    

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Water quality prediction of copper-molybdenum mining-beneficiation wastewater based on the PSO-SVR model

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1698-9

Abstract:

● Data acquisition and pre-processing for wastewater treatment were summarized.

Keywords： Chemical oxygen demand     Mining-beneficiation wastewater treatment     Particle swarm optimization     Support vector regression     Artificial neural network    

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Analysis and prediction of the influence of energy utilization on air quality in Beijing

LI Lin, HAO Jiming, HU Jingnan

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 339-344 doi: 10.1007/s11783-007-0058-5

Abstract: This work evaluates the influence of energy consumption on the future air quality in Beijing, using 2000The air quality model was adopted to simulate the temporal and spatial distribution of each pollutantemission, concentration distribution, and sectoral share responsibility rate were analyzed, and air qualityAccording to the current policy and development trend, air quality in the eight urban areas could become
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A review of hydrological/water-quality models

Liangliang GAO,Daoliang LI

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 4,   Pages 267-276 doi: 10.15302/J-FASE-2014041

Abstract: Water quality models are important in predicting the changes in surface water quality for environmentalA range of water quality models are wildly used, but every model has its advantages and limitations forThe aim of this review is to provide a guide to researcher for selecting a suitable water quality modelEight well known water quality models were selected for this review: SWAT, WASP, QUALs, MIKE 11, HSPF

Keywords： water quality models     applications     future trends    

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Trend prediction technology of condition maintenance for large water injection units

Xiaoli XU, Sanpeng DENG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 171-175 doi: 10.1007/s11465-009-0091-0

Abstract: Trend prediction technology is the key technology to achieve condition-based maintenance of mechanicalLarge-sized water injection units are key equipment in oilfields.to achieve condition-based maintenance for water injection units.The main methods of the technology are given, the trend prediction method based on neural network isoperating condition trend change of the water injection units and provide technical means to achieve

Keywords： water injection units     condition-based maintenance     trend prediction    

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SPATIOTEMPORAL VARIATION OF WATER QUALITY AND ALGAL BIOMASS IN ERHAI LAKE AND ITS ENVIRONMENTAL MANAGEMENT

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 566-578 doi: 10.15302/J-FASE-2023520

Abstract:

Elucidating the spatiotemporal pattern of water quality and algal biomass is crucial for accuratelyThis study analyzed the spatiotemporal variability of water quality and algal biomass in Erhai Lake from1994 to 2021 using water quality index (WQI), Mann-Kendall test and Sen’s slope combined methodsThe potential causes of water quality deterioration and algal biomass dynamics were also elucidated.The changes in water quality and algal biomass were primarily affected by total nitrogen, total phosphorus

Keywords： Erhai Lake     control measures     water environment     water quality index (WQI)    

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Modeling effects of a tidal barrage on water quality indicator distribution in the Severn Estuary

Guanghai GAO, Roger A. FALCONER, Binliang LIN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 211-218 doi: 10.1007/s11783-012-0464-1

Abstract: In this study, emphasis has focused on assessing the potential hydro-environmental impacts of a barrage across the Severn Estuary, with a numerical model being developed and applied to the estuary to assess the impacts of proposed Severn Barrage on the hydrodynamic, sediment transport and faecal indicator organism distribution within the estuary. The results show that the Severn Barrage has the potential to reduce the tidal currents in a highly dynamic estuary. This leads to the reduction of suspended sediment concentrations, which in turn affects the bacterial transport processes which is highly related to the sediment transport processes.

Keywords： water quality indicator     Severn Estuary     numerical model     tidal energy    

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Relationships of nitrous oxide fluxes with water quality parameters in free water surface constructed

Juan WU, Jian ZHANG, Wenlin JIA, Huijun XIE, Bo ZHANG

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2,   Pages 241-247 doi: 10.1007/s11783-009-0023-6

Abstract: concentration in the influent on nitrous oxide (N O) emissions, together with the relationships between N O and waterquality parameters in free water surface constructed wetlands, were investigated with laboratory-scaleThe relationships between N O and the chemical and physical water quality variables were studied by usingThe multiple linear regression model against principal components indicated that different water parameters

Keywords： free water surface constructed wetland     nitrous oxide emission     water quality parameter     principal component    

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Human health ambient water quality criteria for 13 heavy metals and health risk assessment in Taihu Lake

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1475-6

Abstract:

• The concentrations of 13 heavy metals in Taihu Lake were analyzed.

Keywords： Heavy metals     Human health ambient water quality criteria     Taihu Lake     Health risk assessment     Contribution    

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Effects of water quality on the coagulation performances of humic acids irradiated with UV light

Wendong WANG,Qinghai FAN,Zixia QIAO,Qin YANG,Yabo WANG,Xiaochang WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 147-154 doi: 10.1007/s11783-014-0749-7

Abstract: The presence of humic acid in drinking water treatment has received significant attention in recent yearsIn this paper, the effects of water quality including pH, turbidity, alkalinity, and hardness on thehumic acid in coagulation under both neutral and basic conditions, and the variations of the selected waterquality parameters had little adverse effect on the function of UV light.

Keywords： coagulation     drinking water     humic acid     UV light radiation     water quality    

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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 identifyA water quality-control scheme was suggested based on the water quality requirement in the water functionalzone, in which the water quality at the downstream boundary of the zone was required to meet the waterTwo methods of calculating water quality control are addressed for point-source pollution and non-point-sourceThe calculated temporal dimension and water quality control were located in Dongxi River of the Daning

Keywords： emission trading     water functional zone     water quality control    

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Toxicity-oriented water quality engineering

Shengkun Dong, Chenyue Yin, Xiaohong Chen

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1259-4

Abstract: • Toxicity-oriented water quality monitoring was proposed. • Toxicity-oriented water quality engineeringThe fundamental goal of water quality engineering is to ensure water safety to humans and the environmentTraditional water quality engineering consists of monitoring, evaluation, and control of key water qualitySpecifically, complementary to traditional water quality parameters, we evaluated the water toxicitytoxicity-oriented water quality control designs.

Keywords： Water     Wastewater     Mixture     Toxicity     Monitor     Control    

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Digital-Twin-Enhanced Quality Prediction for the Composite Materials Article

Yucheng Wang, Fei Tao, Ying Zuo, Meng Zhang, Qinglin Qi

Engineering 2023, Volume 22, Issue 3,   Pages 23-33 doi: 10.1016/j.eng.2022.08.019

Abstract: Quality defects in composite materials can lead to lower quality components, creating potential riskExperimental and simulation methods are commonly used to predict the quality of composite materials.However, it is difficult to predict the quality of composite materials accurately due to the uncertainFeatures are added to the proposed model by generating simulated data to enhance the quality predictionAn extreme learning machine (ELM) for quality prediction is trained with the generated data.

Keywords： Digital twin     Quality prediction     Composites     Coupling models    

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Spatio-temporal variations of water quality in Yuqiao Reservoir Basin, North China

Yuan XU,Ruqin XIE,Yuqiu WANG,Jian SHA

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 649-664 doi: 10.1007/s11783-014-0702-9

Abstract: In this paper, we considered data for 14 water quality parameters collected during 1990–2004 at 7 waterquality monitoring sites.The results of fuzzy comprehensive assessment revealed that water quality in Yuqiao Reservoir Basin showedThe major water quality belonged to Class III and IV.Factor analysis identified four latent pollution sources for water quality variations: nutrient pollution

Keywords： Fuzzy comprehensive assessment     multivariate statistical analysis     water quality    

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Title Author Date Type Operation

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

Journal Article

Water quality soft-sensor prediction in anaerobic process using deep neural network optimized by Tree-structured

Journal Article

Water quality prediction of copper-molybdenum mining-beneficiation wastewater based on the PSO-SVR model

Journal Article

Analysis and prediction of the influence of energy utilization on air quality in Beijing

LI Lin, HAO Jiming, HU Jingnan

Journal Article

A review of hydrological/water-quality models

Liangliang GAO,Daoliang LI

Journal Article

Trend prediction technology of condition maintenance for large water injection units

Xiaoli XU, Sanpeng DENG

Journal Article

SPATIOTEMPORAL VARIATION OF WATER QUALITY AND ALGAL BIOMASS IN ERHAI LAKE AND ITS ENVIRONMENTAL MANAGEMENT

Journal Article

Modeling effects of a tidal barrage on water quality indicator distribution in the Severn Estuary

Guanghai GAO, Roger A. FALCONER, Binliang LIN

Journal Article

Relationships of nitrous oxide fluxes with water quality parameters in free water surface constructed

Juan WU, Jian ZHANG, Wenlin JIA, Huijun XIE, Bo ZHANG

Journal Article

Human health ambient water quality criteria for 13 heavy metals and health risk assessment in Taihu Lake

Journal Article

Effects of water quality on the coagulation performances of humic acids irradiated with UV light

Wendong WANG,Qinghai FAN,Zixia QIAO,Qin YANG,Yabo WANG,Xiaochang WANG

Journal Article

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

Toxicity-oriented water quality engineering

Shengkun Dong, Chenyue Yin, Xiaohong Chen

Journal Article

Digital-Twin-Enhanced Quality Prediction for the Composite Materials

Yucheng Wang, Fei Tao, Ying Zuo, Meng Zhang, Qinglin Qi

Journal Article

Spatio-temporal variations of water quality in Yuqiao Reservoir Basin, North China

Yuan XU,Ruqin XIE,Yuqiu WANG,Jian SHA

Journal Article