摘要
为了探明固废焚烧炉烟道气中PCDD/Fs和PBDD/Fs的浓度、分布特征和二者之间的相关性,用气相色谱/高分辨质谱测定2,3,7,8位氯代和溴代二恶英（PCDD/Fs和PBDD/Fs）。两者的总毒性当量浓度在A厂分别为0.043～1.20,0.00056～0.010 ng I-TEQ/m^3,在B厂分别为0.024～0.069,0.0034～0.0043 ng I-TEQ/m^3。A厂的PCDD/Fs以PCDFs为主,B厂相对浓度最大的是OCDD。影响PCDD/Fs的浓度和分布可能主要为垃圾含氯量和空气净化设施。PBDD/Fs都主要含PBDFs。两厂的PCDD/Fs和PBDD/Fs浓度具有较好的相关性。
To investigate the concentrations,congener profiles and relationship of 2,3,7,8-substituted polychlorinated dibenzo-p-dioxins and polychlorinated furans（ PCDD / Fs）,and polybrominated dibenzo-p-dioxins and polybrominated furans（ PBDD/Fs） in the stack flue gases from municipal solid waste incinerations（ MSWIs）,gas chromatograph coupled with high resolution mass spectrometry was applied. The TEQ concentrations of PCDD / Fs and PBDD / Fs respectively ranged in 0. 043 ～1. 0,0. 00056 ～ 0. 010 ng I-TEQ / m^3 in plant A,and in 0. 024 ～ 0. 069,0. 0034 ～ 0. 0043 ng I-TEQ / m^3 in plant B. The congener profiles of PCDD / Fs in the stack flue gases were dominated by PCDFs in plant A,while by OCDD in plant B. The concentrations and congener profiles of PCDD / Fs in the stack flues gases were probably mostly affected by the chlorine contents in feeding wastes and the air pollution control devices. For PBDD / Fs,PBDFs were abundant in all flue gas samples of plant A and B. There were good correlations between the concentrations of PCDD / Fs and PBDD / Fs.
出处
《环境工程》
CAS
CSCD
北大核心
2015年第11期78-82,141,共6页
Environmental Engineering
基金
国家自然科学基金(41373104
41073083)
广东省自然科学基金(S2012010008537)
