Thermal hydrolysis alleviates polyethylene microplastic-induced stress in anaerobic digestion of waste activated sludge
文献类型：期刊论文
| 作者 | Chen, Hongbo3; Wu, Yi3; Zou, Zhiming3; Yang, Xiao2; Tsang, Yiu Fai1 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2024-05-15 |
| 卷号 | 470页码:134124 |
| 关键词 | Polyethylene microplastics Thermal hydrolysis Waste activated sludge Anaerobic digestion Acetyltri-n-butyl citrate |
| DOI | 10.1016/j.jhazmat.2024.134124 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Microplastics are known to negatively affect anaerobic digestion (AD) of waste activated sludge. However, whether thermal hydrolysis (TH) pretreatment alters the impact of microplastics on sludge AD remains unknown. Herein, the effect of TH on the impact of polyethylene (PE) microplastics in sludge AD was investigated. The results showed that the inhibition of methane production by PE at 100 particles/g total solids (TS) was reduced by 31.4% from 12.1% to 8.3% after TH at 170 degrees C for 30 min. Mechanism analysis indicated TH reduced the potential for reactive oxygen species production induced by PE, resulting in a 29.1 +/- 5.5% reduction in cell viability loss. In addition, additive leaching increased as a result of rapid aging of PE microplastics by TH. Acetyl tri-n-butyl citrate (ATBC) release from PE with 10 and 100 particles/g TS increased 11.5-fold and 8.6-fold after TH to 68.2 +/- 5.5 mu g/L and 124.0 +/- 5.1 mu g/L, respectively. ATBC at 124.0 mu g/L increased methane production by 21.4%. The released ATBC enriched SBR1031 and Euryarchaeota, which facilitate the degradation of proteins and promote methane production. This study reveals the overestimated impact of PE microplastics in sludge AD and provides new insights into the PE microplastics-induced impact in practical sludge treatment and anaerobic biological processes. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:001222754800001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/205161]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Chen, Hongbo; Yang, Xiao |
| 作者单位 | 1.Educ Univ Hong Kong, Dept Sci & Environm Studies, Hong Kong 999077, Peoples R China 2.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Xiangtan Univ, Coll Environm & Resources, Xiangtan 411105, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Hongbo,Wu, Yi,Zou, Zhiming,et al. Thermal hydrolysis alleviates polyethylene microplastic-induced stress in anaerobic digestion of waste activated sludge[J]. JOURNAL OF HAZARDOUS MATERIALS,2024,470:134124. |
| APA | Chen, Hongbo,Wu, Yi,Zou, Zhiming,Yang, Xiao,&Tsang, Yiu Fai.(2024).Thermal hydrolysis alleviates polyethylene microplastic-induced stress in anaerobic digestion of waste activated sludge.JOURNAL OF HAZARDOUS MATERIALS,470,134124. |
| MLA | Chen, Hongbo,et al."Thermal hydrolysis alleviates polyethylene microplastic-induced stress in anaerobic digestion of waste activated sludge".JOURNAL OF HAZARDOUS MATERIALS 470(2024):134124. |
入库方式： OAI收割
来源：地理科学与资源研究所
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