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. 2019 Dec;294:122150. doi: 10.1016/j.biortech.2019.122150. Epub 2019 Sep 16.
Simultaneous flue gas desulphurisation and denitrification in biotrickling filter was investigated under different O concentrations (0%, 3%, 5%, 8% and 10%) at 45 °C. NO and SO removal efficiency, intermediates (NO, NO, NO, SO and S) interaction and accumulation, S recovery and microbial community structure were investigated. Results indicated the highest NO removal efficiency was 96.5% at 5% O. Maximum SO removal efficiency was 95.6% at 3% O. Moreover, N intermediates accumulation increased when O concentration increased from 0% to 10%. The lowest S concentration of 61 mg/L and the maximum S recovery of 76.9% were achieved at 5% O. The bioreactor at 10% O contained less bacterial OTUs richness and evenness compared with other conditions. Illumina analysis indicated Proteobacteria, Firmicutes and Bacteroidetes were the dominant members. Overall, microbial community structure differs significantly under different O concentrations.
在 45°C 下，研究了不同 O 浓度（0%、3%、5%、8%和 10%）下生物滴滤器中同时脱硫脱硝的情况。考察了 NO 和 SO 去除效率、中间产物（NO、NO、NO、SO 和 S）相互作用和积累、S 回收和微生物群落结构。结果表明，在 5% O 时，NO 的去除效率最高，达到 96.5%。在 3% O 时，SO 的去除效率最高，达到 95.6%。此外，当 O 浓度从 0%增加到 10%时，N 中间产物的积累增加。在 5% O 时，S 的浓度最低为 61mg/L，S 的最大回收率为 76.9%。与其他条件相比，O 浓度为 10%的生物反应器中细菌 OTUs 的丰富度和均匀度较低。Illumina 分析表明，变形菌门、厚壁菌门和拟杆菌门是主要成员。总的来说，不同 O 浓度下微生物群落结构差异显著。
