燃煤电厂CPM排放状况及其环境效应研究

王春艳; 申进朝; 周伟峰; 刘红艳; 刘桓嘉

doi:10.12187/2022.06.013

December 2022

Article Contents

WANG Chunyan, SHEN Jinchao, ZHOU Weifeng, et al. Researches on CPM status emitted by coal-fired power plants and its environmental effects[J]. Journal of Light Industry, 2022, 37(6): 101-109. doi: 10.12187/2022.06.013

Citation: WANG Chunyan, SHEN Jinchao, ZHOU Weifeng, et al. Researches on CPM status emitted by coal-fired power plants and its environmental effects[J]. Journal of Light Industry, 2022, 37(6): 101-109. doi: 10.12187/2022.06.013 shu

Researches on CPM status emitted by coal-fired power plants and its environmental effects

1. Department of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, China;
2. He'nan Ecological and Environmental Monitoring Center, Zhengzhou 450046, China;
3. Zhengzhou ecological environment monitoring center of He'nan Province, Zhengzhou 450007, China;
4. Anyang ecological environment monitoring center of He'nan Province, Anyang 455000, China;
5. College of Environment, He'nan Normal University, Xinxiang 453002, China

Received Date: 2021-09-22
Accepted Date: 2022-06-20

Abstract

According to Method 202 proposed by EPA in 2017 and HJ 836-2017 issued by Environmental Protection Department of China, devices of TPM was designed and utilized with which samples of FPM and CPM could be collected simultaneously. FPM, CPM, water soluble ions and elements analysis of CPM in flue gas emitted by three coal-fired power plants named A, B and C were monitored. CFD was used to simulate the diffusion trajectory of PM_2.5 formed by CPM emission from fixed sources in stationary weather. The statistical results showed that mass concentrations of TPM emitted by plant A, B and C was 8.63±3.11 mg/m³, 19.05±8.85 mg/m³ and 5.07±1.59 mg/m³, respectively. It was proved that CPM was 90% of TPM and FPM was low mass concentration. Inorganic CPM was dominant in CPM, SO₄^2-, NH₄⁺, Na⁺and other water-soluble ions were important components, and the emission of metal elements especially heavy metal should not be neglected. CFD was used to simulate the diffusion trajectory of PM_2.5 formed by CPM emission from fixed sources in stationary weather. It was proved that CPM could accumulate below atmospheric boundary layer under meteorological conditions that were not conductive to the diffusion of pollutants, causing PM_2.5 accumulation in a short period of time, which was an important factor in the formation of heavy pollutant weather.
- FPM,
- CPM,
- ultra-low emissions,
- coal-fired power plant,
- environmental effects
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Researches on CPM status emitted by coal-fired power plants and its environmental effects

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