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北京市混凝土搅拌站扬尘排放因子及排放清单

黄玉虎1 韩凯丽1 陈丽媛2 祁丽荣3 曲松1 李贝贝4 秦建平1

(1.北京市环境保护科学研究院国家城市环境污染控制工程技术研究中心, 北京 100037)
(2.北京市环境保护局, 北京 100044)
(3.北京生产力促进中心, 北京 100088)
(4.首都师范大学资源环境与旅游学院, 北京 100048)

【摘要】为准确估算混凝土搅拌站扬尘排放清单, 本研究综合美国环保局和南加州的搅拌站扬尘排放因子, 并在北京市典型搅拌站开展道路积尘负荷测试, 建立了北京市搅拌站各生产环节及综合扬尘排放因子.结合北京市搅拌站扬尘治理过程, 估算北京市1991~ 2014年搅拌站扬尘排放清单, 并预测2015~ 2020年排放清单.结果表明:北京市2015年搅拌站道路积尘负荷平均值为 (26.2±11.5) g/m2, 是南加州推荐值 (11.0g/m2) 的2.4倍;②1995年以前北京市搅拌站PM2.5综合排放因子为86g/m3混凝土, 第1季度混凝土产量月不均匀系数是其他季度的1/3, 2015年PM2.5综合排放因子相比1995年以前下降89.4%, 场区道路扬尘排放占比由10%增加至70%;③《北京市2013~ 2017年清洁空气行动计划》实施后, 2015年搅拌站扬尘PM2.5排放量下降至543.1t/a, 相比2013年减排48.3%, 其中清退无资质搅拌站对PM2.5减排的贡献为18.6%;④搅拌站扬尘排放主要集中在五环至六环 (52%) , 六环外排放量占总量的28%.未来北京市搅拌站扬尘减排工作应该着力于继续清退无资质搅拌和加强场区道路清扫保洁.

【关键词】 混凝土搅拌站;扬尘;排放因子;排放清单;

【DOI】

【基金资助】 国家质量基础的共性技术研究与应用重点专项 (2017YFF0211804) ; 国家科技支撑计划课题 (2014BAC23B02) ;

Emission factor and inventory for fugitive dust from concrete batching plants in Beijing

HUANG Yu-hu1 HAN Kai-li1 CHEN Li-yuan2 QI Li-rong3 QU Song1 LI Bei-bei4 QIN Jian-ping1

(1.National Engineering Research Center of Urban Environmental Pollution Control, Beijing Municipal Research Institute of Environmental Protection, Beijing, China 100037)
(2.Beijing Municipal Environmental Protection Bureau, Beijing, China 100044)
(3.Beijing Productivity Center, Beijing, China 100088)
(4.Capital Normal University, College of Resource Environment and Tourism, Beijing, China 100048)

【Abstract】In order to estimate the emission inventory for fugitive dust from concrete batching plants accurately, emission factors for fugitive dust from concrete batching plants in USEPA and SCAQMD were synthesized in this paper, and road silt loading test were carried out in typical concrete batching plants in Beijing, and the emission factors for fugitive dust of production segments and comprehensive process from concrete batching plants were established in Beijing. Combining with the fugitive dust managing process from concrete batching plants in Beijing, fugitive dust emission inventory from concrete batching plants in Beijing from 1991 to 2014 was estimated, and predicted for the year of 2015 to 2020. The results showed that the mean value of road silt loading of concrete batching plants was (26.2 ± 11.5) g/m2 in Beijing in 2015, which was 2.4 times as much as the value (11.0 g/m2) recommended by SCAQMD. The fugitive dust from concrete batching plants in Beijing before 1995 was uncontrolled, the comprehensive emission factor of PM2.5 was 86 g/m3 concrete, the uneven factor of monthly of production output of concrete batching plants in first quarter was 1/3 of other quarters. The comprehensive emission factor of PM2.5 in 2015 was declined 89.4% compared with 1995, and the proportion of road fugitive dust emission from plants in total emission was increased from 10% to 70%. After implementation of Beijing’s Clean Air Action Plan from 2013 to 2017, the PM2.5 emission from concrete batching plants fell to 543.1 t/a and decreased by 48.3% in 2015 compared with 2013. The contribution of elimination of unqualified concrete batching plants to PM2.5 emission reduction was 18.6%. The fugitive dust emission from concrete batching plants in Beijing was concentrated on the 5th ring road to 6th ring road (52%), and the emission amount of outside of 6th ring road accounted for 28% of total amount. In the future, eliminating unqualified concrete batching plants continuously and strengthening road sweep cleaning in plants should be the most important emission reduction efforts of concrete batching plants in Beijing.

【Keywords】 concrete batching plant; fugitive dust; emission factor; emission inventory;

【DOI】

【Funds】 Major Special Fund of Research and Application of Generic Technology of National Quality Infrastructure (2017YFF0211804); National Science and Technology Support Program (2014BAC23B02);

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This Article

ISSN:1000-6923

CN:11-2201/X

Vol 37, No. 10, Pages 3699-3707

October 2017

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Article Outline

Abstract

  • 1 Materials and methods
  • 2 Results and discussions
  • 3 Conclusions
  • References