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Simulation of Water Environmental Capacity and Pollution Load Reduction Using QUAL2K for Water Environmental Management

Author

Listed:
  • Ruibin Zhang

    (State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China)

  • Xin Qian

    (State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China)

  • Xingcheng Yuan

    (State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China)

  • Rui Ye

    (State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China)

  • Bisheng Xia

    (State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China)

  • Yulei Wang

    (State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China)

Abstract

In recent years, water quality degradation associated with rapid socio-economic development in the Taihu Lake Basin, China, has attracted increasing attention from both the public and the Chinese government. The primary sources of pollution in Taihu Lake are its inflow rivers and their tributaries. Effective water environmental management strategies need to be implemented in these rivers to improve the water quality of Taihu Lake, and to ensure sustainable development in the region. The aim of this study was to provide a basis for water environmental management decision-making. In this study, the QUAL2K model for river and stream water quality was applied to predict the water quality and environmental capacity of the Hongqi River, which is a polluted tributary in the Taihu Lake Basin. The model parameters were calibrated by trial and error until the simulated results agreed well with the observed data. The calibrated QUAL2K model was used to calculate the water environmental capacity of the Hongqi River, and the water environmental capacities of COD Cr NH 3 -N, TN, and TP were 17.51 t, 1.52 t, 2.74 t and 0.37 t, respectively. The results showed that the NH 3 -N, TN, and TP pollution loads of the studied river need to be reduced by 50.96%, 44.11%, and 22.92%, respectively to satisfy the water quality objectives. Thus, additional water pollution control measures are needed to control and reduce the pollution loads in the Hongqi River watershed. The method applied in this study should provide a basis for water environmental management decision-making.

Suggested Citation

  • Ruibin Zhang & Xin Qian & Xingcheng Yuan & Rui Ye & Bisheng Xia & Yulei Wang, 2012. "Simulation of Water Environmental Capacity and Pollution Load Reduction Using QUAL2K for Water Environmental Management," IJERPH, MDPI, vol. 9(12), pages 1-18, December.
    • Handle: RePEc:gam:jijerp:v:9:y:2012:i:12:p:4504-4521:d:22046
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    References listed on IDEAS

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    1. Rode, Michael & Suhr, Ursula & Wriedt, Gunter, 2007. "Multi-objective calibration of a river water quality model—Information content of calibration data," Ecological Modelling, Elsevier, vol. 204(1), pages 129-142.
    2. Meng Yang & Xin Qian & Yuchao Zhang & Jinbao Sheng & Dengle Shen & Yi Ge, 2011. "Spatial Multicriteria Decision Analysis of Flood Risks in Aging-Dam Management in China: A Framework and Case Study," IJERPH, MDPI, vol. 8(5), pages 1-20, May.
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    Cited by:

    1. Weiwei Song & Qing Xu & Xingqian Fu & Peng Zhang & Yong Pang & Dahao Song, 2018. "Research on the Relationship between Water Diversion and Water Quality of Xuanwu Lake, China," IJERPH, MDPI, vol. 15(6), pages 1-26, June.
    2. Marcos Mateus & Carina Almeida & David Brito & Ramiro Neves, 2014. "From Eutrophic to Mesotrophic: Modelling Watershed Management Scenarios to Change the Trophic Status of a Reservoir," IJERPH, MDPI, vol. 11(3), pages 1-17, March.
    3. Ruibin Zhang & Xin Qian & Wenting Zhu & Hailong Gao & Wei Hu & Jinhua Wang, 2014. "Simulation and Evaluation of Pollution Load Reduction Scenarios for Water Environmental Management: A Case Study of Inflow River of Taihu Lake, China," IJERPH, MDPI, vol. 11(9), pages 1-19, September.
    4. Rui Ye & Kun Shan & Hailong Gao & Ruibin Zhang & Wen Xiong & Yulei Wang & Xin Qian, 2014. "Spatio-Temporal Distribution Patterns in Environmental Factors, Chlorophyll-a and Microcystins in a Large Shallow Lake, Lake Taihu, China," IJERPH, MDPI, vol. 11(5), pages 1-15, May.
    5. Xiao Wang & Nikolaos Katopodes & Chunqi Shen & Hua Wang & Yong Pang & Qi Zhou, 2016. "Control of Pollutants in the Trans-Boundary Area of Taihu Basin, Yangtze Delta," IJERPH, MDPI, vol. 13(12), pages 1-12, December.
    6. Qiankun Liu & Jingang Jiang & Changwei Jing & Jiaguo Qi, 2018. "Spatial and Seasonal Dynamics of Water Environmental Capacity in Mountainous Rivers of the Southeastern Coast, China," IJERPH, MDPI, vol. 15(1), pages 1-21, January.

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