文献类型：期刊文献

英文题名：Performance and mechanisms of biochar-assisted vermicomposting in accelerating di-(2-ethylhexyl) phthalate biodegradation in farmland soil

作者：Zhen, Zhen[1];Luo, Shuwen[1];Chen, Yijie[1];Li, Gaoyang[1];Li, Huijun[1];Wei, Ting[1];Huang, Fengcheng[1];Ren, Lei[1];Liang, Yan-Qiu[2];Lin, Zhong[2,3];Zhang, Dayi[4,5]

机构：[1]Guangdong Ocean Univ, Coll Coastal Agr Sci, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Fac Chem & Environm Sci, Zhanjiang 524088, Peoples R China;[3]Guangdong Ocean Univ, Shenzhen Res Inst, Shenzhen 518108, Peoples R China;[4]Jilin Univ, Coll New Energy & Environm, Changchun 130021, Peoples R China;[5]Jilin Univ, Key Lab Groundwater Resources & Environm, Minist Educ, Changchun 130021, Peoples R China

年份：2023

卷号：443

外文期刊名：JOURNAL OF HAZARDOUS MATERIALS

收录：SCI-EXPANDED(收录号：WOS:000906128800002)、、EI(收录号：20224613098659)、Scopus(收录号：2-s2.0-85141518817)、WOS

基金：This work was financially supported by the National Natural Science Foundation of China (41977125, 41907033, 41907346, and 31800109) and Natural Science Foundation of Guangdong Province (2022A1515010867, 2022A1515010630, and 2019A1515011948) . DZ acknowledges support from Chinese Government?s Thousand Talents Plan for Young Professionals.

语种：英文

外文关键词：Soil; Biochar; Earthworm; Microbial communities; Di-(2-ethylhexyl) phthalate

外文摘要：Biochar and earthworms can accelerate di-(2-ethylhexyl) phthalate (DEHP) degradation in soils. However, little is known regarding the effect of biochar-assisted vermicomposting on soil DEHP degradation and the underlying mechanisms. Therefore, the present study investigated DEHP degradation performance and bacterial community changes in farmland soils using earthworms, biochar, or their combination. Biochar-assisted vermicomposting significantly improved DEHP degradation through initial physical adsorption on biochar and subsequent rapid biodegradation in the soil, earthworm gut, and charosphere. Burkholderiaceae, Pseudomonadaceae, and Flavobacteriaceae were the potential DEHP degraders and were enriched in biochar-assisted vermicomposting. In particularly, Burkholderiaceae and Sphingomonadaceae were enriched in the earthworm gut and charosphere, possibly explaining the mechanism of accelerated DEHP degradation in biochar-assisted vermicomposting. Soil pH, soil organic matter, and humus (humic acid, fulvic acid, and humin) increased by earthworms or biochar enhanced DEHP degradation. These findings imply that biochar-assisted vermicomposting enhances DEHP removal not only through rapid physical sorption but also through the improvement of soil physicochemical characteristics and promotion of degraders in the soil, earthworm gut, and charosphere. Overall, biochar-assisted vermicomposting is a suitable method for the remediation of organic-contaminated farmland soils.