title: A Biophysicochemical Model for NO Removal by the Chemical Absorption-Biological Reduction Integrated Process.
abstract: The chemical absorption-biological reduction (CABR) integrated process is regarded as a promising technology for NOx removal from flue gas. To advance the scale-up of the CABR process, a mathematic model based on mass transfer with reaction in the gas, liquid, and biofilm was developed to simulate and predict the NOx removal by the CABR system in a biotrickling filter. The developed model was validated by the experimental results and subsequently was used to predict the system performance under different operating conditions, such as NO and O2 concentration and gas and liquid flow rate. NO distribution in the gas phase along the biotrickling filter was also modeled and predicted. On the basis of the modeling results, the liquid flow rate and total iron concentration were optimized to achieve >90% NO removal efficiency. Furthermore, sensitivity analysis of the model revealed that the performance of the CABR process was controlled by the bioreduction activity of Fe(III)EDTA. This work will provide the guideline for the design and operation of the CABR process in the industrial application.
authors.affiliation: Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University , Yuquan Campus, Hangzhou 310027, China.
authors.forename: Jingkai
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University , Yuquan Campus, Hangzhou 310027, China.
authors.forename: Yinfeng
authors.initials: Y
authors.lastname: Xia
authors.affiliation: Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University , Yuquan Campus, Hangzhou 310027, China.
authors.forename: Meifang
authors.initials: M
authors.lastname: Li
authors.affiliation: Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University , Yuquan Campus, Hangzhou 310027, China.
authors.forename: Sujing
authors.initials: S
authors.lastname: Li
authors.affiliation: Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University , Yuquan Campus, Hangzhou 310027, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.affiliation: College of Environment, Zhejiang University of Technology , Hangzhou 310032, China.
authors.forename: Shihan
authors.initials: S
authors.lastname: Zhang
mesh_terms: D018441:Biofilms; D007501:Iron; D009569:Nitric Oxide; D010084:Oxidation-Reduction
chemical_list: D009569:Nitric Oxide; D007501:Iron