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开发一种塑料废弃物处理工艺,通过将深度环氧溶剂 (DES) 预处理和生物增量与塑料降解细菌联盟相结合

Saowaluk Krainara¹, Avnish Nitin Mistry², Chawanan Malee³

¹Department of Environmental Health and Technology, School of Public Health, Walailak University, Nakhon Si Thammarat, Thailand; Excellent Center for Dengue and Community Public Health (EC for DACH), Walailak University, Nakhon Si Thammarat, Thailand; Center of Excellence in Microbial Technology for Marine Pollution Treatment (MiTMaPT), Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.

Journal of hazardous materials

|September 12, 2023

概括

这项研究提出了一种用于处理塑料废物的新方法,该方法结合了深度环氧溶剂 (DES) 预处理和细菌生物降解. 这种方法增强了堆肥系统中聚乙烯二甲 (PET) 和聚乳酸 (PLA) 塑料的降解.

科学领域:

环境科学环境科学
生物技术是生物技术.
材料科学材料科学材料科学

背景情况:

聚乙烯二甲 (PET) 和聚乳酸 (PLA) 塑料在视觉上相似,导致废物流中的共同污染.
混合塑料废物的有效和可持续的处理方法对于环境保护至关重要.

研究的目的:

开发一种综合处理混合PET和PLA塑料废物的综合工艺.
通过使用深度环氧溶剂 (DES) 预处理和专门的细菌联盟来增强塑料的生物降解.

主要方法:

使用胆化物和基于糖的DES通过浸泡涂层对PET和PLA样品进行预处理.
开发一个细菌联盟,包括六种塑料降解菌株.
评估水性介质中的降解,实验室规模的堆肥和试点规模的堆肥.

主要成果:

DES预处理增加了塑料表面的可湿性和生物膜的形成,促进了细菌的附着.
联合DES预处理和细菌联盟显著改善了PET和PLA降解.
在各种环境条件下观察到有效的退化.

结论:

DES预处理是一种可行的策略,可以提高PET和PLA塑料的生物降解性.
开发的细菌联盟有效降解预处理的塑料.
这种综合方法为混合塑料废物的管理提供了一个有希望的解决方案.

关键词:

堆肥化堆肥化堆肥化深度欧性溶剂溶剂在这里,PET是PET.这就是为什么PLA PLA PLA.预处理预处理

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