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塑料包装在建筑湿地中的命运:表面结构和微生物社区

Ying Lin¹, Jing Tao¹, Dongping Chen¹

¹College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Normal University, Fuzhou 350117, China; Fujian Key Laboratory of Pollution Control & Resource Reuse and Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou 350007, China.

The Science of the total environment

|May 11, 2024

概括

像PLA,PVC,PE和PVDC这样的塑料包装在建筑湿地中降解,改变它们的结构并吸引特定的微生物. 塑料中的限制了微生物的多样性,而Rhizobiaceae和Pseudomonadaceae可能会降解这些微塑料.

科学领域:

环境科学环境科学
微生物学微生物学
聚合物科学聚合物科学

背景情况:

塑料包装对环境污染作出了重大贡献.
了解水生生态系统中塑料垃圾的命运至关重要.

研究的目的:

研究塑料包装在建筑湿地中的表面结构和微生物社区演变.
为了确定与不同类型的塑料和建筑湿地内的不同位置相关的衰老率和微生物多样性.

主要方法:

分析塑料包装的表面结构变化 (分子量,结晶性,粗性,PDI,CI).
微生物群落的特征 (香农指数,社区结构) 殖民塑料表面.
对不同类型的塑料 (PE,PVC,PVDC,PLA),位置 (土壤,根,地下) 和老化时间的微生物多样性和社区结构进行比较.

主要成果:

所有塑料包装都显示出降解的迹象,聚乳酸 (PLA) 的衰老速度最快,其次是聚乙烯 (PVC),聚乙烯 (PE) 和聚乙烯化物 (PVDC).
微生物多样性在植物根部最高,其次是地下和土壤表面.
微生物社区结构受到塑料类型,位置和老化时间的影响,含塑料 (PVC,PVDC) 呈现较低的微生物多样性.
未分类的Rhizobiaceae和Pseudomonadaceae是占主导地位的属,这表明它们在塑料降解中的作用.

结论:

塑料包装在建筑湿地中的降解受材料类型和环境条件的影响.
塑料表面上的微生物群落与周围的土壤不同,多样性有限.
特定的细菌系显示了塑料降解的潜力,为微塑料的命运和生物修复策略提供了洞察力.

关键词:

衰老的衰老衰老的衰老建造的湿地建造的湿地微生物社区的微生物社区.塑料包裹可以包裹.结构变化结构变化

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