Characterization of PAHs and PCBs in Fly Ashes of Eighteen Coal-Fired Power Plants
Characterization of PAHs and PCBs in Fly Ashes of Eighteen Coal-Fired Power Plants
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十八座燃煤电厂飞灰中多环芳烃和多氯联苯的表征
DOI：
10.4209/aaqr.2016.10.0430
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发表时间：
2017
影响因子：
4
通讯作者：
安彩秀
中科院分区：
文献类型：
--
作者：
李志勇;陈岚;刘松涛;马慧巧;王磊;安彩秀
对于燃煤电厂飞灰的治理，必须对飞灰中的多环芳烃和多氯联苯进行表征。采用GC/MS系统对中国18家大型CFPP中的18种多环芳烃和86种多氯联苯同系物进行检测。16个闭塞功率为600 MW(IBPC-600)的CFPP的PAH浓度在5.51-70.9 ng g-1之间，显著低于IBPC为200和300 MW的2个CFPP的886-916 ng g-1(IBPC-200/300)。18种CFPP的多环芳烃和多氯联苯同系物均以低分子量多环芳烃和多氯联苯为主。主要的同系物是3环和2环多环芳烃、二、三和四环多氯联苯。使用IBPC-600的16个CFPP的PAH谱与其他工业堆栈的PAH谱显著不同，因为发散系数更高。含IBPC600的16种CFPP的BaP毒性当量浓度(BaPeq)和BaP的等效致癌力(BAPE)分别为0.834 ng g~(-1)和0.570 ng g~(-1)，远低于含IBPC-200/300的2种CFPP的相应的20.5ngg~(-1)和15.4 ng g~(-1)。含IBPC-6 0 0和-2 0 0/30 0的CFPP中Σ86多氯联苯的平均致癌浓度在9.6 0~32.1ngg-1之间没有差异。2种含IBPC-2 0 0/30 0的CFPP的致癌多环芳烃平均浓度较高，18种CFPP的PCBS-TEQ浓度较高，表明应禁止使用CFAs作为土壤改良剂。18种CFPP中的多环芳烃浓度与总有机碳(TOC)值有很好的相关性，而多氯联苯的浓度没有表现出这种趋势，这表明多氯联苯和多环芳烃的形成机理不同。
For the management of coal fly ashes (CFAs) from coal-fired power plants (CFPPs), characterization of PAHs and PCBs in CFAs is imperative. The 18 PAH and 86 PCB congeners in CFAs collected from 18 large-scale CFPPs in China were detected using GC/MS system. The PAH concentrations were in the range of 5.51–70.9 ng g–1 for 16 CFPPs with individual block power capacity as 600 MW (IBPC-600), significantly lower than 886–916 ng g–1 for 2 CFPPs with IBPC as 200 and 300 MW (IBPC-200/300). Both PAH and PCB congeners for 18 CFPPs were dominated by low molecular weight ones. The 3- and 2-ring PAHs, di-, tri- and tetra-PCBs were the predominant homologs. PAH profiles for 16 CFPPs with IBPC-600 were significantly different from other industrial stacks based on higher coefficients of divergence. The BaP-based toxic equivalency (BaPeq) concentration and BaP-based equivalent carcinogenic power (BaPE) for 16 CFPPs with IBPC-600 were 0.834 ng g–1 and 0.570, much lower than corresponding 20.5 ng g–1 and 15.4 for 2 CFPPs with IBPC-200/300. No difference existed for Σ86PCBs between CPFFs with IBPC-600 and -200/300, which ranged from 9.60 to 32.1 ng g–1. Higher mean carcinogenic PAH concentrations for 2 CFPPs with IBPC-200/300 and PCBs-TEQ concentration for 18 CFPPs indicated the application of CFAs as soil amendment should be prohibited. The PAH concentrations for 18 CFPPs were well correlated with the total organic carbon (TOC) values, while PCB concentrations showed not this trend, indicated the different formation mechanism between PCBs and PAHs.
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DOI：
10.1016/j.scitotenv.2016.04.059
发表时间：
2016-09
期刊：
The Science of the total environment
影响因子：
--
作者：
Z. Košnář;F. Mercl;I. Perná;P. Tlustoš
通讯作者：
Z. Košnář;F. Mercl;I. Perná;P. Tlustoš
影响因子：
5.3
作者：
Kunlei Liu;R. Heltsley;Daozhong Zou;and Wei-Ping Pan;J. T. Riley
通讯作者：
Kunlei Liu;R. Heltsley;Daozhong Zou;and Wei-Ping Pan;J. T. Riley
影响因子：
13.6
作者：
Kong, Shaofei;Ding, Xiao;Li, Zhiyong
通讯作者：
Li, Zhiyong
中国东南部两个亚热带城市大气中的多环芳烃：季节变化和气体/颗粒分配
影响因子：
4
作者：
Yang, Bing-Yu;Wang, Xin-Hong;Yuan, Chung-Shin;Hong, Hua-Sheng
通讯作者：
Hong, Hua-Sheng
影响因子：
5
作者：
Kong, Shaofei;Ji, Yaqin;Bai, Zhipeng
通讯作者：
Bai, Zhipeng