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飞灰添加对沥青铺路烟气PAHs释放的影响

杨金忠 高何凤 黄启飞 季炜 谭巍 杨玉飞

杨金忠, 高何凤, 黄启飞, 季炜, 谭巍, 杨玉飞. 飞灰添加对沥青铺路烟气PAHs释放的影响[J]. 环境科学研究, 2016, 29(4): 602-608.
引用本文: 杨金忠, 高何凤, 黄启飞, 季炜, 谭巍, 杨玉飞. 飞灰添加对沥青铺路烟气PAHs释放的影响[J]. 环境科学研究, 2016, 29(4): 602-608.
YANG Jinzhong, GAO Hefeng, HUANG Qifei, JI Wei, TAN Wei, YANG Yufei. Simulation of PAHs Release in Municipal Solid Waste Incineration Fly Ash Application for Asphalt Pavement[J]. Research of Environmental Sciences, 2016, 29(4): 602-608.
Citation: YANG Jinzhong, GAO Hefeng, HUANG Qifei, JI Wei, TAN Wei, YANG Yufei. Simulation of PAHs Release in Municipal Solid Waste Incineration Fly Ash Application for Asphalt Pavement[J]. Research of Environmental Sciences, 2016, 29(4): 602-608.

飞灰添加对沥青铺路烟气PAHs释放的影响

基金项目: 国家自然科学基金项目(51178439)

Simulation of PAHs Release in Municipal Solid Waste Incineration Fly Ash Application for Asphalt Pavement

  • 摘要: 为评估生活垃圾焚烧飞灰替代矿粉生产沥青混合料及其路面浇筑全过程中PAHs的环境风险,采用实验室模拟与实际铺筑过程相结合的方法,改变飞灰添加量(以w计,0、3%、4%和5%)和加热温度(200、165、145和80 ℃),以对PAHs的释放规律进行研究. 结果表明:在实际筑路过程中,PAHs的释放受加热温度的影响较大,ρ(∑16PAHs)随加热温度的下降而降低,其中混合料制备和道路开放使用阶段的ρ(∑16PAHs)分别为249.0~378.0、72.1~95.1 μg/m3;但在路面浇筑阶段ρ(∑16PAHs)有增加的趋势,为254.0~571.0 μg/m3,并且在该阶段内ρ(4环PAHs)降低,低环(2~3环)和高环(5~6环)的PAHs质量浓度升高. 飞灰的添加抑制了PAHs的释放,w(∑16PAHs)在10.4~12.3 μg/kg之间,毒性当量浓度(以TEQ计)在0.011 μg/kg左右. 飞灰的添加抑制了以萘为主的低环PAHs的释放,并且在3%添加量时对PAHs的抑制效果最好;在飞灰添加量为3%、4%和5%时,w(萘)分别降低了42.7%、32.2%和35.3%.

     

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出版历程
  • 收稿日期:  2015-10-14
  • 修回日期:  2016-01-14
  • 刊出日期:  2016-04-25

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