Systematic governance framework construction for quality and efficiency improvement of sewage pipeline networks in rainy cities of southern China

HAN Yuan; GUO Junting; SONG Shengnan; ZHANG Xianguo; WANG Zhengshu; FU Xitong

doi:10.13205/j.hjgc.202605004

Volume 44 Issue 5

May 2026

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2026 > 44(5): 37-49

HAN Yuan, GUO Junting, SONG Shengnan, ZHANG Xianguo, WANG Zhengshu, FU Xitong. Systematic governance framework construction for quality and efficiency improvement of sewage pipeline networks in rainy cities of southern China[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(5): 37-49. doi: 10.13205/j.hjgc.202605004

Citation:

HAN Yuan, GUO Junting, SONG Shengnan, ZHANG Xianguo, WANG Zhengshu, FU Xitong. Systematic governance framework construction for quality and efficiency improvement of sewage pipeline networks in rainy cities of southern China[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(5): 37-49. doi: 10.13205/j.hjgc.202605004

Citation:

HAN Yuan, GUO Junting, SONG Shengnan, ZHANG Xianguo, WANG Zhengshu, FU Xitong. Systematic governance framework construction for quality and efficiency improvement of sewage pipeline networks in rainy cities of southern China[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(5): 37-49. doi: 10.13205/j.hjgc.202605004

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Systematic governance framework construction for quality and efficiency improvement of sewage pipeline networks in rainy cities of southern China

doi: 10.13205/j.hjgc.202605004

1. Beijing Capital Eco-Environment Protection Group Co., Ltd., Beijing 100044, China;
2. Beijing Mercury Environment Co., Ltd., Beijing 101599, China;
3. Yingtan Capital Eco-Environment Co., Ltd., Yingtan 335099, China;
4. International Leadership of Texas Garland High School, Texas 75044, USA

Received Date: 2026-01-09
Available Online: 2026-06-06

Abstract

Abstract

To address the decline in operational performance of sewage pipeline networks in rainy cities of southern China caused by structural defects， stormwater-sewage cross-connections， and external water intrusion， a systematic governance framework comprising precise investigation， dynamic regulation， graded rehabilitation， and smart operation and maintenance was established. A zoned priority evaluation model was developed with comprehensive problem severity （P） and governance contribution （B） as the core indicators， based on which differentiated governance strategies were formulated. Supported by a digital platform， monitoring， assessment， rectification， and verification data were integrated to develop a digital twin system for the pipeline network， and a correlation-based analysis and closed-loop operation and maintenance mechanism linking rainfall， groundwater level， and network hydraulic load was established. A typical urban area in Jiangxi Province was selected as the case study. After implementation， the mean COD concentration of terminal sewage in the study area increased steadily to 230 mg/L above， the average daily external water volume in the dry season decreased by 27.64%， and the sewage collection rate increased to 76%. The results indicate that the proposed framework can effectively support the quality and efficiency improvement of sewage pipeline networks in rainy cities of southern China， and provide a technical reference for similar cities.

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References(26)

References

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