| Title: | Effect of presence of hydrophilic volatile organic compounds on removal of hydrophobic n-hexane in biotrickling filters |
| Author(s): | Cheng Y; Li X; Liu H; Yang C; Wu S; Du C; Nie L; Zhong Y; |
| Address: | "College of Environmental Science and Engineering, Hunan University, And Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China. College of Environmental Science and Engineering, Hunan University, And Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China; Guangdong Provincial Key Laboratory of Petrochemcial Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China; Hunan Provincial Environmental Protection Engineering Center for Organic Pollution Control of Urban Water and Wastewater, Changsha, Hunan, 410001, China. Datang Environment Industry Group Co., Ltd., Beijing, 100097, China. College of Environmental Science and Engineering, Hunan University, And Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China; Guangdong Provincial Key Laboratory of Petrochemcial Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China; Hunan Provincial Environmental Protection Engineering Center for Organic Pollution Control of Urban Water and Wastewater, Changsha, Hunan, 410001, China. Electronic address: yangc@hnu.edu.cn. College of Environmental Science and Engineering, Hunan University, And Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China; Guangdong Provincial Key Laboratory of Petrochemcial Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China. Guangdong Provincial Key Laboratory of Petrochemcial Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China. Electronic address: ducheng@gdupt.edu.cn. Guangdong Provincial Key Laboratory of Petrochemcial Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China" |
| DOI: | 10.1016/j.chemosphere.2020.126490 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "Hydrophilic VOCs (volatile organic compounds) were applied to explore their positive influence on the elimination of the single hydrophobic VOC in biotrickling filters (BTFs). Comparison experiments were carried to evaluate the effect of 4-methyl-2-pentanone and toluene on the performance of BTFs for n-hexane removal. The results showed that the existence of 4-methyl-2-pentanone improved the removal performance of BTFs at short gas empty bed contact time (EBRT) of 15 s and low temperature of 10 degrees C. The degradation of n-hexane in the presence of 4-methyl-2-pentanone was slightly enhanced with a loading ratio of 6:1. When the mixing ratio was greater than 4, toluene significantly promoted the biodegradation of n-hexane with toluene loading rate less than 10 g m(-3) h(-1). Additionally, The promotion effect was not only reflected in the contents of proteins and polysaccharides, but also in the growth rates of microorganisms in biofilms. This work discussed the detailed effect between n-hexane and hydrophilic VOCs in BTFs, which would contribute to develop a more economical method to improve the removal performance of hydrophobic VOCs in BTFs" |
| Keywords: | "Air Pollutants/analysis/*chemistry Biodegradation, Environmental Biofilms *Bioreactors Filtration/methods Hexanes/*chemistry Hydrophobic and Hydrophilic Interactions Methyl n-Butyl Ketone Toluene Volatile Organic Compounds/analysis/*chemistry 4-Methyl-2-p;" |
| Notes: | "MedlineCheng, Yeting Li, Xiang Liu, Haiyang Yang, Chunping Wu, Shaohua Du, Cheng Nie, Lijun Zhong, Yuanyuan eng England 2020/03/30 Chemosphere. 2020 Aug; 252:126490. doi: 10.1016/j.chemosphere.2020.126490. Epub 2020 Mar 18" |
