Abstract:
With the rapid advancement of photopolymerization-based 3D printing technology, the volume of PCW has experienced a sharp increase. The potential environmental ramifications of PCW disposal demand careful consideration, especially given its current practice of being incineration alongside MSW. In this study, the TG-MS/FTIR system was carried out to probe the thermogravimetric characteristics and volatile byproducts during combustion. Various product compositions resulting from different mixing ratios of PCW incineration with MSW were investigated. It was observed that fluorene (C13H10) and triphenylene (C18H12) produced by PCW combustion 0.52 mg/g and 0.43 mg/g respectively, which are twice as abundant as those generated from normal plastic. When PCW incineration along with MSW, compounds such as naphthalene (C10H8), cyclohexane (C6H12), and heptane (C7H16) were generated in concentrations of 1.25 mg/g, 1.05 mg/g, and 0.95 mg/g respectively, which are at least twice as much as with MSW incineration alone. The incineration of PCW with rubber and textiles resulted in the production of 2.34 mg/g to 3.76 mg/g more PAHs compared to PCW combustion alone. The incineration of PCW with paper resulted in the production of 3.12 mg/g to 5.15 mg/g more heptane, nonane, cyclohexane, pyrene, and anthracene than PCW combustion alone. Incineration of PCW with wood proved to be the cleanest method, with product contents primarily below 0.10 mg/g. When incinerated with food residues or normal plastic, most of the product content remained below 0.05 mg/g. Considering the environmental pollution resulting from PCW combustion, the disposal of PCW warrants careful consideration and management.
摘要:
随着基于光聚合的3D打印技术的快速发展,PCW的数量急剧增加。PCW处置对环境的潜在影响需要仔细考虑,特别是考虑到它目前与MSW一起焚烧的做法。在这项研究中,进行了TG-MS/FTIR系统以探测燃烧过程中的热重特性和挥发性副产物。研究了由PCW焚烧与MSW的不同混合比产生的各种产物组成。观察到PCW燃烧产生的芴(C13H10)和三亚苯(C18H12)分别为0.52mg/g和0.43mg/g,它们的丰度是普通塑料的两倍。当PCW与MSW一起焚烧时,化合物如萘(C10H8),环己烷(C6H12),和庚烷(C7H16)以1.25mg/g的浓度产生,1.05mg/g,和0.95mg/g,至少是单独焚烧垃圾的两倍。与单独的PCW燃烧相比,用橡胶和纺织品焚烧PCW导致产生2.34mg/g至3.76mg/g的PAHs。用纸焚烧PCW导致产生3.12mg/g至5.15mg/g的庚烷,壬烷,环己烷,芘,和蒽比单独燃烧PCW。用木材焚烧PCW被证明是最清洁的方法,产品含量主要低于0.10mg/g。当用食物残渣或普通塑料焚烧时,大部分产品含量保持在0.05mg/g以下。考虑到PCW燃烧造成的环境污染,PCW的处置值得仔细考虑和管理。