|
1
|
Modelling of Biotrickling Filters for Treatment of NOx Analytical Expressions for the NOx Concentration in Both Gas and Biofilm Phases. ELECTROCHEM 2022. [DOI: 10.3390/electrochem3030025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A mathematical model of an ideal biotrickling filter (BF) system that inoculates a recently identified strain of Chelatococcus daeguensis TAD1 and brings about efficient nitrogen oxide treatment is discussed. The proposed model is based on nonlinear mass transport equations at the gas–biofilm interface. Using Akbari–Ganji’s technique, approximate analytical expressions for the nitric oxide concentration in the gaseous and biofilm phases were developed for all feasible system parameters. In addition, to investigate the dynamic behaviour of the system, a numerical analysis of the problem is provided using MATLAB tools. To demonstrate this new approach, graphical data are provided and quantitatively discussed. This theoretical result has good agreement with the numerical simulation (MATLAB) results for the experimental values of parameters.
Collapse
|
|
2
|
Derakhshan Z, Ehrampoush MH, Mahvi AH, Dehghani M, Faramarzian M, Eslami H. A comparative study of hybrid membrane photobioreactor and membrane photobioreactor for simultaneous biological removal of atrazine and CNP from wastewater: A performance analysis and modeling. CHEMICAL ENGINEERING JOURNAL 2019. [DOI: 10.1016/j.cej.2018.08.155] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
|
3
|
Rene ER, Sergienko N, Goswami T, López ME, Kumar G, Saratale GD, Venkatachalam P, Pakshirajan K, Swaminathan T. Effects of concentration and gas flow rate on the removal of gas-phase toluene and xylene mixture in a compost biofilter. BIORESOURCE TECHNOLOGY 2018; 248:28-35. [PMID: 28844689 DOI: 10.1016/j.biortech.2017.08.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 08/06/2017] [Accepted: 08/07/2017] [Indexed: 06/07/2023]
Abstract
The aim of this work was to study the performance of a compost/ceramic bead biofilter (6:4 v/v) for the removal of gas-phase toluene and xylene at different inlet loading rates (ILR). The inlet toluene (or) xylene concentrations were varied from 0.1 to 1.5gm-3, at gas flow rates of 0.024, 0.048 and 0.072m3h-1, respectively, corresponding to total ILR varying between 7 and 213gm-3h-1. Although there was mutual inhibition, xylene removal was severely inhibited by the presence of toluene than toluene removal by the presence of xylene. The biofilter was also exposed to transient variations such as prolonged periods of shutdown (30days) and shock loads to envisage the response and recuperating ability of the biofilter. The maximum elimination capacity (EC) for toluene and xylene were 29.2 and 16.4gm-3h-1, respectively, at inlet loads of 53.8 and 43.7gm-3h-1.
Collapse
Affiliation(s)
- Eldon R Rene
- Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India; Department of Environmental Engineering and Water Technology, UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands.
| | - Natalia Sergienko
- Department of Environmental Engineering and Water Technology, UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands
| | - Torsha Goswami
- Department of Environmental Engineering and Water Technology, UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands
| | - M Estefanía López
- Department of Chemical Engineering, Faculty of Sciences, Campus da Zapateira, University of La Coruńa, Rua da Fraga, 10, E-15008 La Coruña, Spain
| | - Gopalakrishnan Kumar
- Center for Materials Cycles and Waste Management Research, National Institute for Environmental Studies, Tsukuba, Japan
| | - Ganesh D Saratale
- Department of Food Science and Biotechnology, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea
| | - Perumal Venkatachalam
- Periyar University, Department of Biotechnology, Plant Genetic Engineering and Molecular Biology Lab, Periyar Palkalai Nagar, Salem 636 011, Tamil Nadu, India
| | - K Pakshirajan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781 039, Assam, India
| | - T Swaminathan
- Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| |
Collapse
|