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Performance of a Tower-Shaped Integrated Ecological Purification Device for Pollutants Removal from Domestic Sewage in Rural Areas

Author

Listed:
  • Min Yan

    (College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China)

  • Jian Zhang

    (College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China)

  • Xiaoguo Wang

    (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China)

  • Xin Lu

    (College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China)

Abstract

With the continuous development of China’s modern economy and agricultural society, the discharge of rural sewage has been recognized as a major threat to the safety of the rural ecological environment. This study discussed the purification efficiency of a tower-shaped integrated ecological purification device (TIEPD)—consisting of a measuring tank, detention tank and three-stage purification unit—towards various common pollutants in rural areas during operation and tested the stability and efficiency of the TIEPD under different rural life events (fair activity days and nonfair activity days) and different precipitation intensities (light rain, moderate rain and heavy rain). The results showed that the average removal efficiencies of the TIEPD towards chemical oxygen demand, ammonia nitrogen, total nitrogen and total phosphorus were 69%, 67%, 54% and 73%, respectively. The average effluent concentration of each pollutant can meet the standard of the discharge of pollutants in China. The system exhibited good stability in removing pollutants and good ecological and economic benefits. This study provides the treatment of domestic sewage in the upper reaches of the Yangtze River and in mountainous areas of China and strengthens the prevention and control of rural nonpoint source pollution.

Suggested Citation

  • Min Yan & Jian Zhang & Xiaoguo Wang & Xin Lu, 2022. "Performance of a Tower-Shaped Integrated Ecological Purification Device for Pollutants Removal from Domestic Sewage in Rural Areas," IJERPH, MDPI, vol. 19(24), pages 1-13, December.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:24:p:17014-:d:1007156
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    References listed on IDEAS

    as
    1. Marco Heredia-R & Andrea Paola Layedra-Almeida & Yenny Torres & Theofilos Toulkeridis, 2022. "RETRACTED: Evaluation of a Microbial Consortium and Selection of a Support in an Anaerobic Reactor Directed to the Bio-Treatment of Wastewater of the Textile Industry," Sustainability, MDPI, vol. 14(14), pages 1-17, July.
    2. Takahiro Yamashita & Ryoko Yamamoto-Ikemoto, 2014. "Nitrogen and Phosphorus Removal from Wastewater Treatment Plant Effluent via Bacterial Sulfate Reduction in an Anoxic Bioreactor Packed with Wood and Iron," IJERPH, MDPI, vol. 11(9), pages 1-19, September.
    3. Shan Ren & Pei Song & Haichun Cheng & Chao Liu & Rongsheng Chen, 2022. "Enhanced Treatment of Decentralized Domestic Sewage Using Gravity-Flow Multi-Soil-Layering Systems Coupled with Iron-Carbon Microelectrolysis," Sustainability, MDPI, vol. 14(19), pages 1-18, October.
    Full references (including those not matched with items on IDEAS)

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