典型燃煤电厂大气污染物沉降对周边水源地的影响及贡献研究

蔡春霞; 贾晓丹; 鲍国臣; 曹竞心; 黄博雅; 王忠臣

doi:10.12401/j.nwg.2023128

典型燃煤电厂大气污染物沉降对周边水源地的影响及贡献研究

1.
北京国寰环境技术有限责任公司，北京 100012

2.
中国地质调查局西安地质调查中心 / 西北地质科技创新中心，陕西西安　710119

详细信息

作者简介: 蔡春霞（1980−），女，硕士，高级工程师，研究方向为环境影响评价。E−mail：6316703@qq.com

通讯作者: 贾晓丹（1979−），女，硕士，高级工程师，研究方向为环境资源评价与保护。E−mail：jxiaodan@mail.cgs.gov.cn。

中图分类号: X773

收稿日期: 2023-02-01

修回日期: 2023-07-07

录用日期: 2023-07-08

刊出日期: 2024-02-20

Impact and Contribution of Atmospheric Pollutant Deposition from a Typical Power Plant on Surrounding Water Sources

1.
Beijing Guohuan Environmental Technology Co. Ltd, Beijing 100012, China

2.
Xi’an Center of China Geological Survey /Northwest China Center for Geoscience Innovation, Xi’an 710119, Shaanxi, China

More Information

Corresponding author: JIA Xiaodan, jxiaodan@mail.cgs.gov.cn

Received Date: 01 February 2023

Revised Date: 07 July 2023

Accepted Date: 08 July 2023

Publish Date: 20 February 2024

摘要

摘要:
为揭示燃煤电厂大气污染物排放对周边水环境的影响，以典型燃煤电厂为研究对象，分析了2008～2020年电厂大气污染物（烟尘、SO₂、NO_x、NH₃和颗粒物重金属）及电厂周边典型水库的水质，并估算了电厂大气污染物排放与水库水质的相关性及其对水库水体中硫化物、氮氧化物和重金属的贡献。结果显示，2008～2020年电厂烟尘、SO₂、NO_x和重金属（Hg、Cu、Zn、As、Cd、Cr和Pb）的排放量整体呈下降趋势，2015～2020年NH₃的排放量呈波动状态；2008～2020年黄壁庄水库入口和中心处的水质均达到《地表水环境质量标准》（GB 3838-2002）II类水质标准以上，水库入口和中心处水体中的重金属含量与电厂烟尘重金属排放量呈显著相关。CALPUFF模型结果显示，该燃煤电厂排放的SO₂、SO₄²⁻、NO_x、HNO₃、NH₃、Hg、As、Cd、Cr、Cu、Pb、Zn沉降到黄壁庄水库水面进入水中转化生成的水污染物SO₄²⁻、HNO₃、NH₃-N、Hg、As、Cd、Cr⁶⁺、Cu、Pb和Zn贡献浓度分别为3.35×10⁻³ mg/L、5.86×10⁻³ mg/L、5.88×10⁻⁴ mg/L、3.73×10⁻⁷ mg/L、1.32×10⁻⁵ mg/L、7.46×10⁻¹⁰ mg/L、7.56×10⁻⁷ mg/L、2.16×10⁻⁷ mg/L、9.48×10⁻⁸ mg/L和8.66×10⁻⁶ mg/L，各项污染物的占标率的大小排序为Hg＞NH₃-N＞HNO₃＞As＞Cr⁶⁺＞SO₄²⁻＞Pb＞Zn＞Cu＞Cd。
- 燃煤电厂 /
- 大气污染物 /
- 重金属元素 /
- 污染贡献
Abstract:
To reveal the impact of atmospheric pollutant emissions from coal-fired power plants on the surrounding water environment, a typical coal-fired power plant was used as a research object to analyze the atmospheric pollutants (soot, SO₂, NO_x, NH₃ and heavy metals in particulate matter) of the power plant and the water quality of typical reservoirs around the power plant from 2008 to 2020. The correlation between atmospheric pollutant emissions from power plants and reservoir water quality and their contributions to sulfide, nitrogen oxide, and heavy metals in reservoir waterbodies were estimated. The results showed that the emissions of soot, SO₂, NO_x and heavy metals (Hg, Cu, Zn, As, Cd, Cr and Pb) from the power plant showed an overall decreasing trend from 2008 to 2020, while the emissions of NH₃ fluctuated from 2015 to 2020. From 2008 to 2020, the water quality at the entrance and centre of the reservoir all met the Environmental Quality Standard for Surface Water (GB3838-2002). The heavy metal contents in the water at the entrance and centre of the reservoir were significantly correlated with the heavy metal emissions from the power plant. The results of CALPUFF model showed that water pollutants SO₄²⁻, HNO₃, NH₃-N, Hg, As, Cd, Cr⁶⁺, Cu, Pb, and Zn, which were transformed by SO₂, SO₄²⁻, NO_x, HNO₃, NH₃, Hg, As, Cd, Cr, Cu, Pb, Zn deposited into the water surface of the reservoir from the power plant, contributed to the concentration of 3.35×10⁻³ mg/L, 5.86×10⁻³ mg/L, 5.88×10⁻⁴ mg/L, 3.73×10⁻⁷ mg/L, 1.32×10⁻⁵ mg/L, 7.46×10⁻¹⁰ mg/L, 7.56×10⁻⁷ mg/L, 2.16×10⁻⁷ mg/L, 9.48×10⁻⁸ mg/L, 8.66×10⁻⁶ mg/L, respectively. The order of proportion of various pollutants to standard was Hg＞NH₃-N＞HNO₃＞As＞Cr⁶⁺＞SO₄²⁻＞Pb＞Zn＞Cu＞Cd.
- coal-fired power plant /
- atmospheric pollutant /
- heavy metal element /
- pollution contribution

HTML全文

图 1 研究区位置图

Figure 1.

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图 2 2008～2020年燃煤电厂大气污染物（烟尘、SO₂、NO_x、NH₃、Hg、Cu、Zn、As、Cd、Pb、Cr）排放量统计图

Figure 2.

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图 3 2008～2020年燃煤电厂大气污染物排放量变化图

Figure 3.

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图 4 2008～2020年黄壁庄水库入口和中心处的水质统计图

Figure 4.

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图 5 燃煤电厂大气污染物和库区水质的相关性分析图

Figure 5.

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图 6 电厂排放污染物和补给水源对水库污染物的占标率排序图

Figure 6.

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