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PET addition delays the composting mature process and promotes microbiota associated with plastic degradation in plastisphere by Xiaoxiao Li; Xiaoyan Qi; Xinxin Liu; Muhammad Khalid; Jieqi Ye; Martin Romantschuk; Fu Chen; Yinfeng Hua; Nan Hui is a Environmental Science article available to read on EtoBox.
What is PET addition delays the composting mature process and promotes microbiota associated with plastic degradation in plastisphere about?
Microplastics (MPs) enter forest and turf-grass and non-edible crops through sludge land reuse, thereby posing a major risk to human health and environmental security. MPs contamination can influence various biochemical processes by shifting microbial communities. However, the MPs effects in high-temperature sludge composting, as well as the microbiota associated with plastic degradation remain largely unexplored. Herein, we determined the effects of polyethylene terephthalate (PET) MPs on sludge-straw composting and microbial communities in 6 Biolan 220L composters for 50 days, using next generation sequencing technology. Our results showed that the humic acid to fulvic acid ratio (HA/FA) of PET treatment was lower (0.78) comparing to control, indicating that PET addition delayed the humification of composting. The Shannon indexes of the plastisphere were higher than surrounding compost and CK at the ripening phase (day 50), suggesting that MPs had a greater microbial enrichment. PET exposure altered the community composition, reduced the microbial network complexity, and decrease the relative abundance of thermophilic genus. Notably, several plastic degradation microbiota genera,
Who reads PET addition delays the composting mature process and promotes microbiota associated with plastic degradation in plastisphere?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Xiaoxiao Li; Xiaoyan Qi; Xinxin Liu; Muhammad Khalid; Jieqi Ye; Martin Romantschuk; Fu Chen; Yinfeng Hua; Nan Hui
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Environmental Science (Physical Sciences)