杨惠媛,岳波,晏卓逸,吴小卉,吴海霞,高红.村镇生活垃圾与秸秆混合焚烧过程中多环芳烃(PAHs)释放特征[J].环境科学学报,2019,39(5):1626-1632
村镇生活垃圾与秸秆混合焚烧过程中多环芳烃(PAHs)释放特征
- Emission characteristics of polycyclic aromatic hydrocarbons(PAHs)during rural solid waste (RSW) and straw mixed burning
- 基金项目：国家科技支撑计划课题（No.2014BAL02B01）；国家自然科学基金项目（No.51808520）
- 杨惠媛
- 昆明理工大学建筑工程学院, 昆明 650500
- 晏卓逸
- 重庆大学城市建设与环境工程学院, 重庆 400044
- 吴海霞
- 昆明理工大学建筑工程学院, 昆明 650500
- 高红
- 昆明理工大学建筑工程学院, 昆明 650500
- 摘要：为了解我国农村地区生活垃圾与玉米秸秆焚烧处置过程烟气中多环芳烃（PAHs）释放特征，对我国农村地区生活垃圾可燃组分以及生活垃圾与玉米秸秆混合焚烧组分在焚烧过程烟气中PAHs化合物释放特征进行分析，利用气相色谱-质谱仪（GC-MS）对样品中的16种PAHs进行分析，研究气态以及颗粒态PAHs的释放因子、环数比例、气固态分配以及排放特征值.结果表明气态PAHs排放因子为当垃圾与秸秆混合比例为1∶2时PAHs的总量最多，而颗粒态为当垃圾与秸秆混合比例为1∶3时PAHs的总量最多；气态PAHs主要集中于2~3环低环数化合物，颗粒态PAHs则主要以中低环数（3~4环）化合物为主，本研究为促进我国村镇生活垃圾处理与资源化运用提供理论依据.
- Abstract：In order to understand the characteristics of emission and distribution of polycyclic aromatic hydrocarbons (PAHs) during RSW and straw mixed burning, 2 categories wastes (i.e. rural solid waste and rural solid waste with straw mixed) had been chosen to analyze by using Gas Chromatography-Mass Spectrometer (GC-MS). The results showed that the emission factors of PAHs from RSW and straw mixed category was higher than RSW. Meanwhile, for all combustion experiments, flue gas occupied the highest proportion of low-ring PAHs and fly ash contained more high-ring PAHs. Moreover, the 2-and 3ring PAHs accounted for the majority of total PAHs in flue gas. However, the 3-and 4 ring PAHs accounted for the majority of total PAHs. This study provides a theoretical basis for the utilization of solid waste disposal and resource utilization in rural areas in China.
