Analysis of rural domestic sewage discharge characteristics and treatment facilities in four provinces in the middle reaches of the Yangtze River

ZHANG Wenqiang; ZHANG Ting; LIU Lu; HU Feichao; PANG Kuo; LI Min; GUO Yali

doi:10.13205/j.hjgc.202511023

Volume 43 Issue 11

Nov. 2025

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2025 > 43(11): 205-212

ZHANG Wenqiang, ZHANG Ting, LIU Lu, HU Feichao, PANG Kuo, LI Min, GUO Yali. Analysis of rural domestic sewage discharge characteristics and treatment facilities in four provinces in the middle reaches of the Yangtze River[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(11): 205-212. doi: 10.13205/j.hjgc.202511023

Citation:

ZHANG Wenqiang, ZHANG Ting, LIU Lu, HU Feichao, PANG Kuo, LI Min, GUO Yali. Analysis of rural domestic sewage discharge characteristics and treatment facilities in four provinces in the middle reaches of the Yangtze River[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(11): 205-212. doi: 10.13205/j.hjgc.202511023

Citation:

ZHANG Wenqiang, ZHANG Ting, LIU Lu, HU Feichao, PANG Kuo, LI Min, GUO Yali. Analysis of rural domestic sewage discharge characteristics and treatment facilities in four provinces in the middle reaches of the Yangtze River[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(11): 205-212. doi: 10.13205/j.hjgc.202511023

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Analysis of rural domestic sewage discharge characteristics and treatment facilities in four provinces in the middle reaches of the Yangtze River

doi: 10.13205/j.hjgc.202511023

ZHANG Wenqiang^1,2,
ZHANG Ting^3,4,
LIU Lu^1,5,
HU Feichao^1,6,
PANG Kuo¹,
LI Min¹,
GUO Yali^{3,4
,
,}

1. College of Environmental Science and Engineering, Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing 100083, China;
2. CSCEC SCIMEE Sci & Tech Co., Ltd., Chengdu 610045, China;
3. Shanghai Investigation, Design & Research Institute Co., Ltd., Shanghai 200335, China;
4. Yangtze Eco-Environment Engineering Research Center (Shanghai), China Three Gorges Corporation, Shanghai 200335, China;
5. State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China;
6. Zhejiang Environmental Monitoring Engineering Co., Ltd., Hangzhou 310012, China

Received Date: 2024-07-31
Accepted Date: 2024-09-15
Rev Recd Date: 2024-08-26

Available Online: 2026-01-09

Abstract

Abstract

Most rural domestic sewage treatment draws on the experience of urban sewage treatment， and the lack of reasonable treatment modes in engineering design often results in problems such as incomplete sewage collection， low operation efficiency of treatment facilities and substandard effluent quality. How to realize the effective collection of sewage and the first selection of efficient treatment process is the key to the design of rural domestic sewage treatment facilities. In this paper， we collected the rural sewage treatment data of Hubei， Hunan， Anhui and Jiangxi provinces in the middle reaches of the Yangtze River， and selected 22 typical rural sewage treatment facilities in different terrains for field investigation， and analyzed the current situation of rural sewage treatment， the collection of rural household drainage characteristics and the treatment effect of the facilities in the four provinces. The results showed that by 2022， the domestic sewage treatment rate of rural areas in the four provinces of the Yangtze River are 32.99%， 23.75%， 36.61% and 30.00% respectively， which are lower than the national rural domestic sewage treatment rate（31%）. The concentration of pollutants in facilities is generally lower than that of farmer households， and the inflow concentration of sewage treatment facilities in areas with different terrains is not significantly different. The concentration of COD， SS， NH⁺₄-N， TN and TP are 41.66 to 72.17 mg/L， 24.86 to 46.86 mg/L， 8.00 to 10.06 mg/L， 12.27 to 16.29 mg/L and 1.35 to 1.6 mg/L， respectively. The treatment facilities in the plain area mostly use the biological method， and the bio-ecological combination processes are mostly used in the mountainous area， among which the treatment effect of A³O+MBBR， AO+constructed wetland and A²O+MBR process is better， and they can stably reach the first-class B effluent standard of GB 18918—2002. This research endeavors contribute to the advancement and optimization of strategies aimed at tackling the challenge of rural domestic sewage treatment within the middle reach of the Yangtze River.
- The middle reaches of the Yangtze River,
- rural sewage,
- governance status,
- sewage collection,
- treatment efficiency

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References(26)

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