Department of Chemical Engineering, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain.
Department of Chemical Engineering, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain.
Sci Total Environ. 2017 Jan 15;577:183-194. doi: 10.1016/j.scitotenv.2016.10.159. Epub 2016 Oct 29.
Thermal degradation of viscoelastic memory foam (VMF) in a horizontal laboratory scale reactor has been studied. Pyrolysis and combustion experiments under sub-stoichiometric conditions were performed at four different temperatures (550°C, 650°C, 750°C and 850°C) for the determination of pollutants. Analyses of gas and semivolatile compounds, including polychlorodibenzo-p-dioxins and furans (PCDD/Fs) and dioxin-like polychlorobiphenyls (dl-PCBs) are shown. From the results, it was deduced that pyrolytic conditions favor the formation of PAHs, methane, ethylene, NH and dl-PCBs, whereas the presence of oxygen involves a higher emission of PCDD/Fs and simple N-containing compounds such as NO and HCN. The toxic levels calculated for PAHs, PCDD/Fs and dl-PCBs in all cases were low confirming that the incineration of VMF mattress waste could be a good option for waste management. Nevertheless, relatively high emissions of NO, NH and HCN were obtained and their reduction must be considered.
已研究了粘弹性记忆泡沫（VMF）在水平实验室规模反应器中的热降解情况。在四个不同温度（550°C、650°C、750°C 和 850°C）下进行了亚化学计量条件下的热解和燃烧实验，以确定污染物。分析了气体和半挥发性化合物，包括多氯二苯并对二恶英和呋喃（PCDD/Fs）和类二恶英多氯联苯（dl-PCBs）。结果表明，热解条件有利于多环芳烃、甲烷、乙烯、NH 和 dl-PCBs 的形成，而氧气的存在则会导致 PCDD/Fs 和简单含氮化合物（如 NO 和 HCN）的排放量增加。在所有情况下，计算出的多环芳烃、PCDD/Fs 和 dl-PCBs 的毒性水平均较低，证实了焚烧 VMF 床垫废物可能是一种很好的废物管理选择。然而，获得了相对较高的 NO、NH 和 HCN 排放量，必须考虑减少这些排放。
