A pollutant load hierarchical allocation method integrated in an environmental capacity management system for Zhushan Bay, Taihu Lake

Liang, Shidong; Jia, Haifeng; Yang, Cong; Melching, Charles S.; Yuan, Yongping

doi:10.1016/j.scitotenv.2015.06.116

Cited by 26 publications

(9 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the biochemical oxygen demand (BOD5) and ammonia as nitrogen (NH3-N) indicators in allowable wastewater are considered as a measure of water organic pollutants [30][31][32][33], their total amount is considered as indicators of the water quality variable (waste pollutants) in this study. According to the results from the report on the impact of cascade hydropower plants on the environment in the Lancang River [34], kBOD5 in Equation 7 For the hydraulic parameters in this study area for Equations (8) and (13), the water velocity in the river can be approximated by Equations (15).…”

Section: Study Area and Data Collectionmentioning

confidence: 99%

“…The initial water storage V 0 in Equations (7) and (13) is set to be the storage at the normal water level according to the Jinghong reservoir operation rules. u = aQ b (15) Since the biochemical oxygen demand (BOD 5 ) and ammonia as nitrogen (NH 3 -N) indicators in allowable wastewater are considered as a measure of water organic pollutants [30][31][32][33], their total amount is considered as indicators of the water quality variable (waste pollutants) in this study. According to the results from the report on the impact of cascade hydropower plants on the environment in the Lancang River [34], k BOD5 in Equation 7was calibrated and validated as 0.042 day −1 in the wet season (from June to October), 0.054 day −1 in the dry season (from January to May), and 0.048 day −1 during the normal water season (November and December).…”

Section: Study Area and Data Collectionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling the Physical Nexus across Water Supply, Wastewater Management and Hydropower Generation Sectors in River–Reservoir Systems

Liu

Zhang

Zeng

et al. 2019

Water

View full text Add to dashboard Cite

Most water supply and hydropower generation is obtained from the river–reservoir system, and wastewater pollutants are also dumped into the system. Increasing water demand and consumption have caused the water supply, wastewater pollutant management and hydropower generation sectors to be interlinked and to reinforce each other in the system. A physical nexus across water supply, wastewater management and hydropower generation sectors for a river–reservoir system was developed based on the analytical water quality and hydropower generation equations. Considering the Jinghong hydropower reservoir, located in the middle and lower reaches of the Lancangjiang River Basin, as a case study, both the wastewater pollutant management target and water inflow from the upstream as the external and boundary conditions, were employed to establish the effects of the external and boundary conditions on the nexus. It was demonstrated that the nexus of water supply and hydropower generation sectors does not vary with the water quality indicators and its protection target, without the separation of environmental flow in hydropower generation flow. In addition, the amount of hydropower generation decreases with increasing water supply. However, the lapse rates of allowable wastewater pollutants–water supply differ based on the water inflow and the wastewater pollutant management sectors, while the efficiency of hydropower generation and the sensitivity of allowable wastewater pollutants per amount of water supply are considered to be unrelated to the water inflow and wastewater pollutant management target conditions. The quantitative nexus developed through the proposed equation not only contributes to a more complete understanding of the mechanism of cross-connections, but also in creation of specific water protection and utilization measures, which is also the focus of the water–energy nexus.

show abstract

Section: Study Area and Data Collectionmentioning

confidence: 99%

Section: Study Area and Data Collectionmentioning

confidence: 99%

Modeling the Physical Nexus across Water Supply, Wastewater Management and Hydropower Generation Sectors in River–Reservoir Systems

Liu

Zhang

Zeng

et al. 2019

Water

View full text Add to dashboard Cite

show abstract

“…Sudden pollution accidents were simulated to provide early warning and emergency response for water quality conservation and eutrophication control [6,33]. One single or one type of pollutant is not enough to forecast pollution accidents and give advice for water resources management and regulation [18].…”

Section: Water Quality Predictionmentioning

confidence: 99%

“…From the original Streeter-Phelps equation to now integrated water quality models, from zerodimensional model to multidimensional model, water quality models have achieved great progress. The typical representatives include WASP [6], QUAL2E [7], Environmental Fluid Dynamics Code (EFDC) [8], Computational Fluid Dynamics (CFD) [9], and DHI MIKE (Danish Hydraulic Institute) [10]. These models were widely applied to rivers, lakes, estuaries, and water transfer projects with large amount of hydraulic structures (gates, culverts, dams, and bridges) [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

A One‐Dimensional Hydrodynamic and Water Quality Model for a Water Transfer Project with Multihydraulic Structures

Tang

Zhang

et al. 2017

Mathematical Problems in Engineering

View full text Add to dashboard Cite

The long Middle Route of the South to North Water Transfer Project is composed of complex hydraulic structures (aqueduct, tunnel, control gate, diversion, culvert, and diverted siphon), which generate complex flow patterns. It is vital to simulate the flow patterns through hydraulic structures, but it is a challenging work to protect water quality and maintain continuous water transfer. A one-dimensional hydrodynamic and water quality model was built to understand the flow and pollutant movement in this project. Preissmann four-point partial-node implicit scheme was used to solve the governing equations in this study. Water flow and pollutant movement were appropriately simulated and the results indicated that this water quality model was comparable to MIKE 11 and had a good performance and accuracy. Simulation accuracy and model uncertainty were analyzed. Based on the validated water quality model, six pollution scenarios ( 1 = 10 m 3 /s, 2 = 30 m 3 /s, and 3 = 60 m 3 /s for volatile phenol (VOP) and contaminant mercury (Hg)) were simulated for the MRP. Emergent pollution accidents were forecasted and changes of water quality were analyzed according to the simulations results, which helped to guarantee continuously transferring water for a large water transfer project.

show abstract

“…It was once a heated discussion and an issue arousing wide concern (Liang et al 2015). However, just as Jining Chen, the minister of environmental protection, said at a press conference of the third session of the 12th National People's Congress that the reliable data are still absent on environmental capacities in China (CCTV 2015).…”

mentioning

confidence: 99%

Pollutants’ discharges and capacities: a comprehensive understanding for pollution sources and aquatic environmental medium is needed in China

Yao

2016

Environ Sci Pollut Res

View full text Add to dashboard Cite

A pollutant load hierarchical allocation method integrated in an environmental capacity management system for Zhushan Bay, Taihu Lake

Cited by 26 publications

References 48 publications

Modeling the Physical Nexus across Water Supply, Wastewater Management and Hydropower Generation Sectors in River–Reservoir Systems

Modeling the Physical Nexus across Water Supply, Wastewater Management and Hydropower Generation Sectors in River–Reservoir Systems

A One‐Dimensional Hydrodynamic and Water Quality Model for a Water Transfer Project with Multihydraulic Structures

Pollutants’ discharges and capacities: a comprehensive understanding for pollution sources and aquatic environmental medium is needed in China

Contact Info

Product

Resources

About