生物炭
Geosmin公司
流出物
气味
水处理
环境科学
制浆造纸工业
废物管理
生物降解
水质
超滤(肾)
化学
环境工程
生态学
生物
工程类
色谱法
热解
有机化学
作者
Jingyu Shu,Qidong Wu,Xiaoyu Ren,Peng Tang,Guijing Chen,Xiuzhen Cheng,Chen Chen,Alberto Tiraferri,Baicang Liu
出处
期刊:ACS ES&T engineering
[American Chemical Society]
日期:2023-12-01
标识
DOI:10.1021/acsestengg.3c00233
摘要
In many rural areas, lakes and reservoirs represent common sources for drinking water, but these water bodies are more likely affected by taste and odor (T&O) problems that cause discomfort to consumers. T&O compounds, especially 2-methylisobornol (2-MIB) and geosmin (GSM), are not easily removed using conventional water treatment processes, and this problem is exacerbated in rural areas where treatment systems are often sparser, modest, and outdated compared to typical urban water sources. Herein, a combined process deploying biochar aerogel-supported biofilms and performed in an ultrafiltration (BAB-UF) reactor was evaluated and investigated to treat rural water polluted with 2-MIB and GSM. During a 40-day experiment, the system performance was analyzed at different values of the empty bed contact time (EBCT), while the microbial communities in different BAB-UF reactors were examined extensively. The process proved to be effective in removing 2-MIB and GSM, predominantly through biodegradation. Specifically, using biochar aerogels as suspended fillers in the reactor and an EBCT of roughly 1 h, the removal rate of 2-MIB/GSM was higher than 95%, and the effluent satisfied the requirements for domestic drinking water. Microorganisms with specific functions were enriched in different BAB-UF reactors and governed the transformation process, highlighting the importance of system tuning for achieving the desired biological function and hence product water quality.
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