EVALUATION OF ENTROPY INCREASE INHIBITION EFFECT OF TREATMENT OF INFERIOR V-CLASS WATER BODIES IN TYPICAL RURAL RIVER COURSES

GU Yonggang; YU Lei; ZHANG Shuhan; MENG Qingyi

doi:10.13205/j.hjgc.202402015

Volume 42 Issue 2

Feb. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(2): 128-134

Zhang Li Sun Jian, . THE ANALYSIS OF THE COUPLING RELATIONSHIP BETWEEN THE URBAN SYSTEM ANDCLIMATE CHANGE: TAKING NANJING AS AN EXAMPLE[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(6): 71-75. doi: 10.13205/j.hjgc.201506016

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GU Yonggang, YU Lei, ZHANG Shuhan, MENG Qingyi. EVALUATION OF ENTROPY INCREASE INHIBITION EFFECT OF TREATMENT OF INFERIOR V-CLASS WATER BODIES IN TYPICAL RURAL RIVER COURSES[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(2): 128-134. doi: 10.13205/j.hjgc.202402015

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EVALUATION OF ENTROPY INCREASE INHIBITION EFFECT OF TREATMENT OF INFERIOR V-CLASS WATER BODIES IN TYPICAL RURAL RIVER COURSES

doi: 10.13205/j.hjgc.202402015

GU Yonggang^{1,2
,
,},
YU Lei^1,3,
ZHANG Shuhan^1,3,
MENG Qingyi^1,2,3

1. Beijing Water Science and Technology Institute, Beijing 100048, China;
2. Beijing Key Laboratory of Watershed Water Environment and Ecological Technology, Beijing 100048, China;
3. Beijing Key Laboratory of Urban Water Cycle and Sponge City Technology, Beijing 100048, China

Received Date: 2022-11-20
Available Online: 2024-04-28

Abstract

Abstract

The issue of water pollution and environmental deterioration caused by insufficient processing capacity sewage treatment in rural areas is a critical problem that requires immediate attention. The current rate of urbanization has led to severe neglect of the construction of sewage treatment facilities in rural areas, causing the direct injection of untreated sewage into rivers. Source control, pollution interception, collection, and treatment are essential methods for controlling the pollution of Inferior V-class water bodies. In this paper, we conducted an in-depth analysis on the csuse of the inferior V-class water bodies in typical rural river water, expanded and upgraded rural sewage treatment facilities, and introduced the concept of entropy, to analyze the impact of organic matter, nitrogen, and phosphorus reduction on water environment and emission reduction effect. After upgrading rural sewage treatment facilities from 800 m³/d to 1800 m³/d, the water environment of typical river channels was effectively improved, and the annual entropy increase was reduced by 9.80×10⁷ kJ/K. The stability of the river water environment and water ecosystem depends on maintaining a relative balance between entropy increase and reverse entropy increase. Evaluating the increase in entropy has practical significance for upgrading and renovating sewage plants and controlling the effect of overflow pollution. In the current context of carbon emissions, carbon neutrality, and the treatment of Inferior V-class water bodies, the sustainable treatment of sewage under the concept of entropy will be excepted to be a development focus of new technology evaluation.

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