摘要
采用溴代二噁英和呋喃（PBDD/Fs）的高分辨气相色谱/质谱联用（HRGC/HRMS）检测分析方法,对不同类型的焚烧炉（医疗废物焚烧炉、炉排炉生活垃圾焚烧炉、工业废物焚烧炉和流化床生活垃圾焚烧炉）飞灰进行了PBDD/Fs的分布特性分析。结果表明：（1）所有样品中均没有发现六溴代二噁英和呋喃,主要都以四、五溴代二噁英和呋喃为主。（2）飞灰中2378位PBDD/Fs只有2378-四溴代呋喃（TBDF）均存在,其质量浓度为0.10~3.05 pg/g,而工业废物焚烧炉还存在2378-四溴代二噁英（TBDD）、2468-TBDF、12378-五溴代呋喃（PeBDF）、23478-PeBDF,其质量浓度为0.49~4.20 pg/g。（3）各飞灰的毒性当量依次为工业废物焚烧炉飞灰〉流化床生活垃圾焚烧炉飞灰〉医疗废物焚烧炉飞灰〉炉排炉生活垃圾焚烧炉飞灰。（4）PBDD/Fs总量依次为工业废物焚烧炉飞灰〉流化床生活垃圾焚烧炉飞灰〉医疗废物焚烧炉飞灰〉炉排炉生活垃圾焚烧炉飞灰。值得注意的是,所有样品中只有医疗废物焚烧炉飞灰中出现溴代二噁英比溴代呋喃高。
The HRGC/HRMS analysis method for PBDD/Fs has been established to study the distribution characteristic of PBDD/Fs in flyashes of different type incinerators（industrial waste incinerator,medical waste incinerator and municipal solid waste incinerator）.Results showed that there were no HxBDF and HxBDD detected in these flyash samples,PBDD/Fs was primarily contributed by TBDD,TBDF,PeBDD and PeBDF.The 2378-TBDF could be detected in all flyash samples with the mass concentration ranged 0.10-3.05 pg/g,beside,2378-TBDD,12378-PeBDF,23478-PeBDF were also found in industrial waste incinerator,with the mass concentration ranged 0.49-4.20 pg/g.The toxic equivalent quantity of industrial waste incinerator flyash was evidently higher than the others,which was followed by fluidized bed MSW incinerator flyash,medical incinerator flyash and grate incinerator flyash.The general amount of PBDD/Fs in 4 typical flyashes was in order of industrial waste incinerator flyash fluidized bed MSW incinerator flyash medical incinerator flyash grate incinerator flyash.It was worthwhile to note that the detected bromination furan was generally higher than bromination dioxin in these flyash samples except for medical incinerator flyash.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2011年第5期40-44,49,共6页
Environmental Pollution & Control
基金
高等学校博士学科点专项科研基金资助课题(No.20070335134)
