激光电离飞行时间质谱在线检测二[口恶]英系统在某生活垃圾焚烧厂的应用  

The Application of Laser Ionization-Time-of-Flight Mass Spectrometry Online Detecting System for Dioxins in A Municipal Solid Waste Incineration Plant

作　　者：项一凡 尚凡杰 陈涛 汤绍富 林杰 王浩 XIANG Yifan;SHANG Fanjie;CHEN Tao;TANG Shaofu;LIN Jie;WANG Hao(Zhejiang Fuchunjiang Environmental Protection Science and Technology Research Co.Ltd.,Hangzhou Zhejiang 311401)

机构地区：[1]浙江富春江环保科技研究有限公司,浙江杭州311401

出　　处：《环境卫生工程》2023年第5期86-92,共7页Environmental Sanitation Engineering

摘　　要：利用激光电离飞行时间质谱在线检测二[口恶]英系统对某生活垃圾循环流化床焚烧炉烟气中二[口恶]英排放进行连续在线监测,通过调整焚烧工况,探究不同工况对二[口恶]英排放的影响。结果表明:活性炭用量从10 kg/h提升至30 kg/h,对二[口恶]英浓度降低效果并不显著,二[口恶]英稳态浓度仅下降13.33%;烟气中投用抑制剂,可使异常状况导致的高浓度二[口恶]英排放能更快地恢复至正常低浓度排放水平;减少入炉垃圾量,启用辅燃,二[口恶]英排放低且稳定,其毒性当量(TEQ)浓度均值为0.028 ng/m^(3)。稳定焚烧工况,使垃圾充分燃烧,从源头减少二[口恶]英生成,是控制二[口恶]英排放较有效的方法;二[口恶]英与14种锅炉运行参数之间的相关性较弱,其排放是一个综合性的问题,与诸多因素有关,不能用单一参数进行衡量。The laser ionization-time-of-flight mass spectrometry online detecting system for dioxins was used to continuously monitor dioxin emission in the flue gas of a circulating fluidized bed incinerator.The effect of different operating conditions on dioxin emission was explored.The results showed that increasing the amount of activated carbon from 10 kg/h to 30 kg/h slightly reduced the concentration of dioxin.And the steady-state concentration of dioxin only decreased by 13.33%.The inhibitor could make high dioxin emission caused by abnormal conditions return to the normal low emission more quickly.After reducing the amount of treated solid waste and adopting auxiliary combustion measures,the dioxin emission became low and stable,with an average TEQ concentration of 0.028 ng/m^(3).It was an effective way to control dioxin emission by stabilizing the combustion condition,fully burning solid waste and reducing dioxin generation from the source.The correlation between dioxin and 14 boiler operating parameters was weak.Dioxin emission was a comprehensive problem,which was related to many factors and could not be judged by a single parameter.

关 键 词：循环流化床焚烧炉 二[口恶]英 在线检测 运行工况 相关性分析 

分 类 号：X831[环境科学与工程—环境工程] X799.3