化学
生物降解
吸附
离子交换树脂
离子交换
活性炭
溶解有机碳
废水
核化学
色谱法
离子
有机化学
环境化学
废物管理
工程类
作者
Sen Xu,Yunbao Yan,Chendong Shuang,Qing Zhou,Rong Ji,Aimin Li
标识
DOI:10.1016/j.biortech.2023.128613
摘要
In this work, three biological ion exchange systems and one biological activated carbon (BAC) system were established by employing magnetic ion exchange resin (MIEX), non-magnetic resin (NIEX), polystyrenic resin (DIEX) and granular activated carbon as the biocarrier for advanced treatment of wastewater. Dissolved organic carbon (DOC) removal of four systems all stabilized at about 84% due to biodegradation. The start-up period of bio-MIEX (nearly 40 d) was greatly shorter than that of others (nearly 190 d). Ibuprofen removal was ascribed to adsorption in the initial stage, which subsequently changed to the effect of biodegradation. After the start-up period, ibuprofen removal was nearly 100% (bio-MIEX), 60% (bio-NIEX), 61% (bio-DIEX) and 89% (BAC). According to the surface observation, ATP and protein measurement and metagenomic analysis, the superior performance of bio-MIEX could be attributed to its highest biological activity resulted from the presence of Fe3O4 rather than polymer matrix and surface roughness.
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