EMISSION CHARACTERISTICS AND MECHANISMS OF METHANE IN MUNICIPAL SEWER SYSTEMS

XUE Zhaoxia; FENG Qian; FANG Fang; LUO Jingyang; CAO Jiashun; XU Runze

doi:10.13205/j.hjgc.202206016

Volume 40 Issue 6

Sep. 2022

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XUE Zhaoxia, FENG Qian, FANG Fang, LUO Jingyang, CAO Jiashun, XU Runze. EMISSION CHARACTERISTICS AND MECHANISMS OF METHANE IN MUNICIPAL SEWER SYSTEMS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(6): 123-129,193. doi: 10.13205/j.hjgc.202206016

Citation:

XUE Zhaoxia, FENG Qian, FANG Fang, LUO Jingyang, CAO Jiashun, XU Runze. EMISSION CHARACTERISTICS AND MECHANISMS OF METHANE IN MUNICIPAL SEWER SYSTEMS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(6): 123-129,193. doi: 10.13205/j.hjgc.202206016

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EMISSION CHARACTERISTICS AND MECHANISMS OF METHANE IN MUNICIPAL SEWER SYSTEMS

doi: 10.13205/j.hjgc.202206016

XUE Zhaoxia^{1,2
,
,},
FENG Qian^1,2,
FANG Fang^1,2,
LUO Jingyang^1,2,
CAO Jiashun^1,2,
XU Runze^1,2

1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China;
2. College of Environment, Hohai University, Nanjing 210098, China

Received Date: 2021-12-21
Available Online: 2022-09-01
Publish Date: 2022-09-01

Abstract

Abstract

Methane (CH₄) generated from municipal sewer systems is one of the major sources of urban carbon emissions.Understanding of emission characteristics and mechanisms of CH₄ is essential to reducing carbon emission and improving wastewater treatment systems.Therefore,this paper reviews the current research on the CH₄ emission in municipal sewer systems,analyzes the main factors and emission mechanisms related to the CH₄ emission.The mathematical modeling methods for evaluating CH₄ emission are discussed as well.The results show that internal environment of sewers,water quality and hydrodynamic conditions greatly affect the CH₄ emission.The biochemical reactions and mass transfer on the multiphase interface of biofilm-pipe sediment-wastewater cause differences in the emission characteristics of CH₄.The mathematical models for the CH₄ emission from sewer systems should be established by coupling pipeline hydrodynamics,particular sedimentation,and biochemical reaction kinetics.The evaluation and control of CH₄ emission from sewer systems could be supported by these mathematical models in the future.
- sewer system,
- methane emission,
- sediment,
- factor,
- mathematical model

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References(54)

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