Analysis of Domestic Sewage Treatment Technology for Converter Stations and Pumped Storage Power Stations Based on the Analytic Hierarchy Process

Xiaoxuan Bai, Junqi Yang, Jiahao Ren (), Peng Li () and Hezhong Tian
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Xiaoxuan Bai: Jibei Electric Power Research Institute, State Grid Jibei Electric Power Co., Ltd., Beijing 100045, China
Junqi Yang: State Key Joint Laboratory of Environmental Simulation & Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China
Jiahao Ren: State Key Joint Laboratory of Environmental Simulation & Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China
Peng Li: Jibei Electric Power Research Institute, State Grid Jibei Electric Power Co., Ltd., Beijing 100045, China
Hezhong Tian: State Key Joint Laboratory of Environmental Simulation & Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China

Sustainability, 2025, vol. 17, issue 13, 1-14

Abstract: This study investigates sewage treatment technologies at manned and unmanned converter stations and pumped storage power stations across various regions of China, considering the regional differences in water availability, infrastructure, and ecological conditions. Using a multi-criteria evaluation approach, this study analyzes key factors, such as economic characteristics, technical characteristics, and efficiency, to assess the most suitable sewage treatment solutions. Powered Eco-type Sewage Treatment Units and Powered Underground Units perform best in southern and eastern China, where advanced infrastructure supports high treatment demands. Conversely, Septic Tanks show the lowest performance across all the regions, particularly in remote and water-scarce areas like northeast and northwest China. For pumped storage power stations, AAO+MBR and Multi-stage A/O processes are most effective in regions with high water reuse needs. This study highlights the necessity of region-specific water management strategies and technological upgrades to ensure efficient sewage treatment and sustainable water use across China’s power grid infrastructure.

Keywords: sewage; analytic hierarchy process; power grid; converter stations; pumped storage power stations (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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