Author(s): Xingxiang Zhang; Jiping Jiang; Xiao Hu; Guangshan Zhang

Linked Author(s):

Keywords: Rural wastewater; Governance decisions; Water resources; Water environment; Carrying ratio

Abstract: This study constructed a WRECC-SD coupled model to address the necessity and focal points of sewage treatment in rural areas. The model comprehensively incorporates changes in agriculture, animal husbandry, industrial production, and population dynamics. It calculates the water consumption and wastewater discharge data for these sectors and determines the necessity and focus of rural wastewater management through the ratio of total water demand and water supply capacity, as well as the ratio of total pollutant emissions and environmental capacity. The results of the study found that both the water resources and water environment ratios in Liuyang County are overloaded in 2040, and measures need to be taken to manage the current situation. Among them, agricultural water use, COD emission from farming, and industrial ammonia nitrogen emission can be the focus of treatment. The findings of this study will aid relevant decision-makers in making more precise and comprehensive assessments concerning wastewater management in rural areas.

DOI: https://doi.org/10.3850/iahr-hic2483430201-432

Year: 2024