Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, Tsinghua University, Beijing, China.
J Environ Manage. 2012 Jun 30;101:54-8. doi: 10.1016/j.jenvman.2011.10.018. Epub 2012 Mar 7.
Characteristics of non-methane organic compounds (NMOCs) emissions during the anaerobic decomposition of untreated (APD-0) and four aerobically pretreated (APD-20, APD-39, APD-49, and APD-63) samples of municipal solid waste (MSW) were investigated in laboratory. The cumulative mass of the NMOCs of APD-20, APD-39, APD-49, and APD-63 accounted for 15%, 9%, 16%, and 15% of that of APD-0, respectively. The intensities of the NMOC emissions calculated by dividing the cumulative NMOC emissions by the quantities of organic matter removed (Q(VS)) decreased from 4.1 mg/kg Q(VS) for APD-0 to 0.8-3.4 mg/kg Q(VS) for aerobically pretreated MSW. The lipid and starch contents might have significant impact on the intensity of the NMOC emissions. Alkanes dominated the NMOCs released from the aerobically pretreated MSW, while oxygenated compounds were the chief component of the NMOCs generated from untreated MSW. Aerobic pretreatment of MSW prior to landfilling reduces the organic content of the waste and the intensity of the NMOC emissions, and increases the odor threshold, thereby reducing the environmental impact of landfills.
在实验室中研究了未经处理的城市固体废物（MSW）（APD-0）和经四种好氧预处理（APD-20、APD-39、APD-49 和 APD-63）的 MSW 样品在厌氧分解过程中产生的非甲烷有机化合物（NMOC）排放的特性。APD-20、APD-39、APD-49 和 APD-63 的 NMOC 累积质量分别占 APD-0 的 15%、9%、16%和 15%。通过将累积 NMOC 排放量除以去除的有机物量（Q(VS)）计算得出的 NMOC 排放强度，从 APD-0 的 4.1mg/kg Q(VS)降低到好氧预处理 MSW 的 0.8-3.4mg/kg Q(VS）。脂质和淀粉含量可能对 NMOC 排放强度有重大影响。烷烃是好氧预处理 MSW 释放的 NMOC 的主要成分，而含氧化合物是未经处理的 MSW 产生的 NMOC 的主要成分。在进行垃圾填埋之前对 MSW 进行好氧预处理可以降低废物的有机含量和 NMOC 排放强度，并提高气味阈值，从而减少垃圾填埋场的环境影响。
