生物降解
连续搅拌釜式反应器
食物垃圾
化学
发酵
降级(电信)
微生物种群生物学
电子供体
制浆造纸工业
食品科学
废物管理
环境化学
细菌
生物
有机化学
催化作用
物理化学
工程类
电信
遗传学
计算机科学
作者
Cheng Lu,Ningbo Gao,Cui Quan
标识
DOI:10.1016/j.wasman.2023.05.036
摘要
Microbial reduction has been considered an effective way to remove perchlorate (ClO4-), during which, additional electron donors and carbon sources are required. This work aims to study the potential of fermentation broth of food waste (FBFW) serving as an electron donor for ClO4- biodegradation, and further investigates the variance of the microbial community. The results showed that FBFW without anaerobic inoculum at 96 h (F-96) exhibited the highest ClO4- removal rate of 127.09 mg/L/d, attributed to higher acetate and lower ammonium contents in the F-96 system. In a 5 L continuous stirred-tank reactor (CSTR), with a 217.39 g/m3·d ClO4- loading rate, 100% removal efficiency of ClO4- was achieved, indicating that the application of FBFW in the CSTR showed satisfactory performance for ClO4- degradation. Moreover, the microbial community analysis revealed that Proteobacteria and Dechloromonas contributed positively to ClO4- degradation. Therefore, this study provided a novel approach for the recovery and utilization of food waste, by employing it as a cost-effective electron donor for ClO4- biodegradation.
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