生物炭
微塑料
堆肥
化学
降级(电信)
环境化学
热解
木炭
废物管理
制浆造纸工业
有机化学
电信
计算机科学
工程类
作者
Yanzhuo Zhang,Yinan Sun,Rui He,Jing Zhao,Jiqin Wang,Tonghuan Yu,Xiaozhuan Zhang,A. V. Bildyukevich
标识
DOI:10.1016/j.biortech.2023.130070
摘要
Simulation of microbial aging biochar in compost is an important index for evaluating the biochar degradation efficiency of antibiotics. In this study, biochar was prepared by adding microplastics (MPs) to sludge, and the degradation effect of biochar/(peroxymonosulfate, PMS) on antibiotics was evaluated during the compost aging process of biochar. After the compost aging of biochars, the antibiotic degradation efficiency of HPBC500, HPBC500 + polystyrene (PS), HPBC900/PMS, and HPBC900 + PS/PMS decreased by 6.47, 15.2, 10.16, and 10.33 %, respectively. Environmentally persistent free radicals (EPFRs) and defect structure were the main contributors to the activation of PMS. EPFRs produced through PS pyrolysis of biochar exhibited strong reactivity but poor stability during the degradation of antibiotics. Biochar enhanced the growth of microorganisms in compost but reduced its specific surface area. The antibiotic degradation efficiency of the biochar was positively correlated with the concentration of EPFRs. This study elucidated the durability of different biochar toward antibiotic degradation.
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