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Assessment of Biological Toxicity and Ecological Safety for Urban Black-Odor River Remediation

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  • Rou-Rou Xu

    (School of Energy & Environment, Southeast University, Nanjing 210096, China
    Taihu Lake Water Environment Engineering Research Center (Wuxi), Southeast University, Wuxi 214061, China)

  • Zhou-Tao Pei

    (School of Energy & Environment, Southeast University, Nanjing 210096, China
    Taihu Lake Water Environment Engineering Research Center (Wuxi), Southeast University, Wuxi 214061, China)

  • Wen-Qian Wang

    (School of Energy & Environment, Southeast University, Nanjing 210096, China
    Taihu Lake Water Environment Engineering Research Center (Wuxi), Southeast University, Wuxi 214061, China)

  • Meng Zhang

    (School of Energy & Environment, Southeast University, Nanjing 210096, China
    Taihu Lake Water Environment Engineering Research Center (Wuxi), Southeast University, Wuxi 214061, China)

  • Li-Ling Zhang

    (School of Energy & Environment, Southeast University, Nanjing 210096, China
    Taihu Lake Water Environment Engineering Research Center (Wuxi), Southeast University, Wuxi 214061, China)

  • Jing Zhang

    (School of Energy & Environment, Southeast University, Nanjing 210096, China
    Taihu Lake Water Environment Engineering Research Center (Wuxi), Southeast University, Wuxi 214061, China)

  • Wen-Qiang Wang

    (School of Energy & Environment, Southeast University, Nanjing 210096, China
    Taihu Lake Water Environment Engineering Research Center (Wuxi), Southeast University, Wuxi 214061, China)

  • Li-Wei Sun

    (School of Energy & Environment, Southeast University, Nanjing 210096, China
    Taihu Lake Water Environment Engineering Research Center (Wuxi), Southeast University, Wuxi 214061, China)

  • Yi-Min Zhang

    (Research Center of Watershed Ecological Conservation and Water Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Nanjing 210042, China)

Abstract

The judgment and assessment of remediation effect on urban black-odor river still depend on the physical-chemical parameters and lack in ecological safety effects. A set of combined biological toxicity tests were applied to evaluate the ecological effects of one urban black-odor river before and after the remediation. The special growth rate of Chlorella vulgaris and mortality rate of Daphnia magna were used to assess acute toxicity. The Salmonella Typhimurium /Reverse Mutation Assay was applied to test the mutagenicity. The tests by C. vulgaris growth showed that there was no inhibition before and after remediation by overlying water, in contrast promoted the growth of C. vulgaris . The tests by D. magna showed slight toxicity on site 3# before remediation and nontoxic after remediation. The mutagenicity of organic extracts from overlying water at all sampling sites were positive before remediation, but were eliminated after remediation except from 3 of 4 sites on TA98 strain. The addition of the liver microsomal S9 induced the positive mutagenicity on site 4# compared to S9 absence. The results clarified the applicable and the importance of the biological toxicity tests on assessing the remediation effect and potential ecological risk of urban black-odor river.

Suggested Citation

  • Rou-Rou Xu & Zhou-Tao Pei & Wen-Qian Wang & Meng Zhang & Li-Ling Zhang & Jing Zhang & Wen-Qiang Wang & Li-Wei Sun & Yi-Min Zhang, 2020. "Assessment of Biological Toxicity and Ecological Safety for Urban Black-Odor River Remediation," IJERPH, MDPI, vol. 17(3), pages 1-14, February.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:3:p:1025-:d:317193
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    Citations

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    Cited by:

    1. Wenqing Song & Shizhuo Wang & Jiang Zhao & Shiliang Xu & Xuefei Zhou & Yalei Zhang, 2023. "Comprehensive Treatment for River Pollution in a Coastal City with a Complex River Network: A Case Study in Sanya, China," Sustainability, MDPI, vol. 15(8), pages 1-15, April.
    2. Nannan Yuan & Yuansheng Pei & Anping Bao & Changhui Wang, 2020. "The Physiological and Biochemical Responses of Daphnia magna to Dewatered Drinking Water Treatment Residue," IJERPH, MDPI, vol. 17(16), pages 1-14, August.

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