Abstract
The industrial sewage pollution has become a public attention issues with the development of economy. The path analysis is employed to investigate the countermeasures of reducing Chemical Oxygen Demand (COD) and ammonia nitrogen (NH3–N) discharge. The result shows that urbanization rate (UR), industrial gross domestic product (IGDP), and environmental investment (EI) co-determine the COD discharge, while UR, IGDP, EI and per capita gross domestic product co-determine the NH3−N discharge. UR is the main factor for restraining COD and NH3-N discharge, with the total effect of 42.59 and 33.37% respectively. IGDP has a positive direct effect on pollutants discharge.
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ACKNOWLEDGMENTS
This study was supported by Key Projects of Scientific Research of the Education Department of Sichuan Province (no. 17ZA0303). Key Projects of Science and Technology Department of Sichuan Province (2017SZ0173).
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Xin-Cong Liu, Zhang, MD., Zhou, WY. et al. A Path Analysis for Chemical Oxygen Demand and Ammonia Nitrogen Discharge from Industrial Sewage in China. Water Resour 47, 1012–1019 (2020). https://doi.org/10.1134/S0097807820060172
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DOI: https://doi.org/10.1134/S0097807820060172