| Title: | Degradation kinetics of aromatic VOCs polluted wastewater by functional bacteria at laboratory scale |
| Author(s): | Lv Y; Wang L; Liu X; Chen B; Zhang M; |
| Address: | "National Engineering Research Center for Environment-Friendly Metallurgy in Producing Premium Non-Ferrous Metals, GRINM Group Co., Ltd., Beijing, 101407, China. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China. GRINM Resources and Environment Tech. Co., Ltd., Beijing, 101407, China. General Research Institute for Nonferrous Metals, Beijing, 100088, China. General Research Institute for Nonferrous Metals, Beijing, 100088, China. wellwoodliu@163.com. College of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China. wellwoodliu@163.com" |
| DOI: | 10.1038/s41598-022-21356-4 |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "Reaction kinetics in biodegradation process is the basis and key of bioremediation technology, which can be used to predict the interaction between microorganisms and environmental states in the system. In this study, the kinetic model (Monod, Moser, Tessier and Cotonis) and kinetic parameters of aerobic biodegradation of functional bacteria in simulated wastewater polluted by aromatic volatile organic compounds (VOCs) were determined by shaking flask experiment. Monod, Moser, Tessier and Contois models were used to fit the experimental data and determine the kinetic parameters based on nonlinear regression analysis. Experimental results demonstrated that the removal rate of aromatic VOCs at 72 h was between 34.78 and 99.75% depending on the initial concentration of aromatic VOCs. The specific growth rate mu and degradation rate q increased with the increase of substrate concentration. The model of Monod, Moser and Tessier could be used to simulate microbial growth and substrate degradation in simulated aromatic VOCs polluted wastewater. Then the model and corresponding kinetic parameters were used to predict the limit concentration of biodegradation and provide theoretical support for the subsequent dynamic simulation and field engineering" |
| Keywords: | "*Wastewater Kinetics *Volatile Organic Compounds/metabolism Biodegradation, Environmental Bacteria/metabolism;" |
| Notes: | "MedlineLv, Ying Wang, Liangshi Liu, Xingyu Chen, Bowei Zhang, Mingjiang eng 51974279/National Natural Science Foundation of China/ Research Support, Non-U.S. Gov't England 2022/11/10 Sci Rep. 2022 Nov 9; 12(1):19053. doi: 10.1038/s41598-022-21356-4" |
