Interaction of tetrahydrofuran and methyl tert-butyl ether in waste gas treatment by a biotrickling filter bioaugmented with Piscinibacter caeni MQ-18 and Pseudomonas oleovorans DT4
Interaction of tetrahydrofuran and methyl tert-butyl ether in waste gas treatment by a biotrickling filter bioaugmented with Piscinibacter caeni MQ-18 and Pseudomonas oleovorans DT4
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四氢呋喃和甲基叔丁基醚在废气处理中的相互作用，采用卡氏鱼杆菌 MQ-18 和产油假单胞菌 DT4 生物增强的生物滴滤器处理废气
DOI：
10.1016/j.chemosphere.2021.131552
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发表时间：
2021-07-25
期刊：
影响因子：
8.8
通讯作者：
Chen, Dong-Zhi
中科院分区：
文献类型：
--
作者：
Liu, Hao-Yang;Yang, Guang-Feng;Chen, Dong-Zhi
建立了以卡氏双歧杆菌MQ-18、油假单胞菌DT4和活性污泥为基质的生物强化生物滴滤池(BTF)，考察了四氢呋喃(THF)和甲基叔丁基醚(MTBE)混合气体的处理性能和降解动力学。试验结果表明，生物强化生物滤池的启动周期为9d(投加活性污泥的对照生物滤池为25d)。利用带有相互作用参数的消除容量-总和动力学模型(EC-SKIP)得到对照(7.462)和生物强化生物转运体(3.267)的相互作用参数I2，1，表明四氢呋喃对MTBE生物降解的抑制作用在对照生物转运体中比生物增强生物转运体中强。同样，自抑制EC-SKIP模型量化了MTBE对THF生物降解的积极影响，以及THF对MTBE生物降解的负面影响以及MTBE和THF的自抑制作用。代谢中间体分析、实时定量聚合酶链式反应、生物膜生物量测定和高通量测序揭示了MTBE和THF增强处理性能和生物降解相互作用的可能机制。
Bioaugmented biotrickling filter (BTF) seeded with Piscinibacter caeni MQ-18, Pseudomonas oleovorans DT4, and activated sludge was established to investigate the treatment performance and biodegradation kinetics of the gaseous mixtures of tetrahydrofuran (THF) and methyl tert-butyl ether (MTBE). Experimental results showed an enhanced startup performance with a startup period of 9 d in bioaugmented BTF (25 d in control BTF seeded with activated sludge). The interaction parameter I2,1 of control (7.462) and bioaugmented BTF (3.267) obtained by the elimination capacity-sum kinetics with interaction parameter (EC-SKIP) model indicated that THF has a stronger inhibition of MTBE biodegradation in the control BTF than in the bioaugmented BTF. Similarly, the selfinhibition EC-SKIP model quantified the positive effects of MTBE on THF biodegradation, as well as the negative effects of THF on MTBE biodegradation and the self-inhibition of MTBE and THF. Metabolic intermediate analysis, real-time quantitative polymerase chain reaction, biofilm-biomass determination, and high-throughput sequencing revealed the possible mechanism of the enhanced treatment performance and biodegradation interactions of MTBE and THF.