| Title: | "Mechanisms of N, N-dimethylacetamide-facilitated n-hexane removal in a rotating drum biofilter packed with bamboo charcoal-polyurethane composite" |
| Author(s): | Wang Z; Hu L; He J; Zhou G; Chen Z; Wang Z; Chen J; Hayat K; Hrynsphan D; Tatsiana S; |
| Address: | "College of Environment, Zhejiang University of Technology, Hangzhou 310032, China. Key Laboratory of Pollution Exposure and Health Intervention Technology, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310021, China. Key Laboratory of Pollution Exposure and Health Intervention Technology, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310021, China; College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310021, China. Electronic address: bec@zjut.edu.cn. School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China. Research Institute of Physical and Chemical Problems, Belarusian State University, Minsk 220030, Belarus" |
| DOI: | 10.1016/j.biortech.2023.128600 |
| ISSN/ISBN: | 1873-2976 (Electronic) 0960-8524 (Linking) |
| Abstract: | "n-Hexane and N, N-dimethylacetamide (DMAC) are two major volatile organic compounds (VOCs) discharged from the pharmaceutical industry. To enhance DMAC-facilitated n-hexane removal, we investigated the simultaneous removal of multiple pollutants in a rotating drum biofilter packed with bamboo charcoal-polyurethane composite. After adding 800 mg.L(-1) DMAC, the n-hexane removal efficiency increased from 59.4 % to 83.1 % under the optimized conditions. The maximum elimination capacity of 10.0 g.m(-3).h(-1)n-hexane and 157 g.m(-3).h(-1) DMAC were obtained. The biomass of bamboo charcoal-polyurethane and the ratio of protein-to-polysaccharide in extracellular polymeric substances were significantly increased compared with the non-DMAC stage, which is attributed to increased carbon utilization. In addition, Na(+) K(+)-ATPase was positively correlated with increasing electron transport system activity, which was 1.98 and 1.36 times greater. Hydrophilic DMAC improved the bioavailability of hydrophobic n-hexane and benefited bacterial metabolism. Co-degradation of n-hexane and DMAC system can be used for other volatile organic pollutants" |
| Keywords: | "*Charcoal Polyurethanes *Environmental Pollutants Filtration Bamboo charcoal-polyurethane composite Biofilm N, N-Dimethylacetamide Rotating drum biofilter n-Hexane;" |
| Notes: | "MedlineWang, Zhaoyun Hu, Liyong He, Jiamei Zhou, Gang Chen, Zhenghui Wang, Zeyu Chen, Jun Hayat, Kashif Hrynsphan, Dzmitry Tatsiana, Savitskaya eng England 2023/01/13 Bioresour Technol. 2023 Mar; 372:128600. doi: 10.1016/j.biortech.2023.128600. Epub 2023 Jan 9" |
