School of Environment and Energy, South China University of Technology, Higher Education Mega Center, Guangzhou 510006, PR China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou 510006, PR China.
School of Environment and Energy, South China University of Technology, Higher Education Mega Center, Guangzhou 510006, PR China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou 510006, PR China.
Bioresour Technol. 2018 Sep;263:266-272. doi: 10.1016/j.biortech.2018.05.015. Epub 2018 May 3.
This study aimed to investigate the degradation efficiency of 2,4,6-trichlorophenol through a batch of potentiostatic experiments (0.2 V vs. Ag/AgCl). Efficiencies in the presence and absence of acetate and glucose were compared through open-circuit reference experiments. Significant differences in degradation efficiency were observed in six reactors. The highest and lowest degradation efficiencies were observed in the closed-circuit reactor fed with glucose and in the open-circuit reactor, respectively. This finding was due to the enhanced bacterial metabolism caused by the application of micro-electrical field and degradable organics as co-substrates. The different treatment efficiencies were also caused by the distinct bacterial communities. The composition of bacterial community was affected by adding different organics as co-substrates. At the phylum level, the most dominant bacteria in the reactor with the added acetate and glucose were Proteobacteria and Firmicutes, respectively.
本研究旨在通过一系列恒电位实验（0.2 V 对 Ag/AgCl）来研究 2,4,6-三氯苯酚的降解效率。通过开路参考实验比较了有和没有醋酸盐和葡萄糖存在时的效率。在六个反应器中观察到降解效率有显著差异。闭路反应器中添加葡萄糖和开路反应器中观察到的降解效率最高和最低。这是由于施加微电场和可降解有机物作为共底物增强了细菌代谢。不同的处理效率也归因于不同的细菌群落。添加不同有机物作为共底物会影响细菌群落的组成。在门水平上，添加醋酸盐和葡萄糖的反应器中最主要的细菌分别为变形菌门和厚壁菌门。
