A comparative study of the effect of compost/woodchips mixture, natural zeolite and zeolite/activated carbon mixture as packing materials on the biofilter performance

Document Type : Research Paper

Authors

1 Chemical Engineering Department, University of Sistan and Baluchestan, Zahedan, Iran

2 Chemical Engineering Department, Faculty of Engineering, University of Sistan and Baluchestan

3 Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, Iran

4 Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran

Abstract

The removal of formaldehyde from contaminated air was investigated via three laboratory-scale biofilters packed with different materials: a mixture of compost and woodchips (І), the natural clinoptilolite zeolite particles in the original form (II), and the mixture of zeolite/activated carbon (III). The biofilters were inoculated using aerobic sludge. The average removal efficiencies of 97.5%, 90%, and 93.5% were obtained at a 100 s empty bed residence time (EBRT) and 20 mg/m3 inlet concentration of formaldehyde for the biofilter of configurations І, II, and III, respectively. Also, the performance of the reactors was investigated at different EBRTs of 20, 30, 60, and 100 s, and the maximum elimination capacity of 2840 mg/m3.h was achieved at the lowest EBRT (20 s) for the biofilter of configuration II. Increasing the inlet formaldehyde concentration from 20 mg/m3 to 80 mg/m3 led to the maximum formaldehyde removal efficiency of 82% for the biofilter of configuration III. Therefore, a comparison of the results of the biofilters' performances showed that the biofilter of configuration III had the best performance, which was validated by obtaining a higher mass transfer coefficient. However, the biofilter of configurations II and III achieved steady-state conditions in a shorter time.

Keywords

Main Subjects


[1] Prado, O. J., Veiga, M. C., Kennes, C. (2006). Effect of key parameters on the removal of formaldehyde and methanol in gas-phase biotrickling filters. Journal of hazardous materials, 138(3), 543-548.
[2] Fulazzaky, M. A., Talaiekhozani, A., Hadibarata, T. (2013). Calculation of optimal gas retention time using a logarithmic equation applied to a bio-trickling filter reactor for formaldehyde removal from synthetic contaminated air. RSC advances, 3(15), 5100-5107.
[3] Lu, N., Pei, J., Zhao, Y., Qi, R., Liu, J. (2012). Performance of a biological degradation method for indoor formaldehyde removal. Building and environment, 57, 253-258.
[4] Xu, Z., Hou, H. (2010). Formaldehyde removal from air by a biodegradation system. Bulletin of environmental contamination and toxicology, 85(1), 28-31.
[5] Hajizadeh, Y., Rezaei, M. (2014). Biodegradation of formaldehyde from contaminated air using a laboratory scale static-bed bioreactor. International journal of environmental health engineering, 3(1), 4.
[6] Prado, Ó. J., Veiga, M. C., Kennes, C. (2004). Biofiltration of waste gases containing a mixture of formaldehyde and methanol. Applied microbiology and biotechnology, 65(2), 235-242.
[7] Rezaei, M., Fazlzadehdavil, M., Hajizadeh, Y. (2015). Formaldehyde removal from airstreams using a biofilter with a mixture of compost and woodchips medium. Water, air, and soil pollution, 226(1), 22-42.
[8] Lim, K. H., Park, S. W., Lee, E. J., Hong, S. H. (2005). Treatment of mixed solvent vapors with hybrid system composed of biofilter and photo-catalytic reactor. Korean journal of chemical engineering, 22(1), 70-79.
[9] Palanisamy, K., Mezgebe, B., Sorial, G. A., Sahle-Demessie, E. (2016). Biofiltration of chloroform in a trickle bed air biofilter under acidic conditions. Water, air, and soil pollution, 227(12), 478.
[10] Cox, H. H. J., Moerman, R. E., Van Baalen, S., Van Heiningen, W. N. M., Doddema, H. J., Harder, W. (1997). Performance of a styrene‐degrading biofilter containing the yeast Exophiala jeanselmei. Biotechnology and bioengineering, 53(3), 259-266.
[11] Yang, Y., Allen, E. R. (1994). Biofiltration control of hydrogen sulfide 1. Design and operational parameters. Air and waste, 44(7), 863-868.
[12] Ebrahimi, S., Borghei, M. (2011). Formaldehyde biodegradation using an immobilized bed aerobic bioreactor with pumice stone as a support. Scientia Iranica, 18(6), 1372-1376.
[13] Jamshidi, A., Hajizadeh, Y., Amin, M.M., Kiani, G., Haidari, R., Falahi‐Nejad, K., Parseh, I. (2018). Biofiltration of formaldehyde, acetaldehyde, and acrolein from polluted airstreams using a biofilter. Journal of chemical technology and biotechnology, 93(5), 1328-1337.
[14] Prado, O., Veiga, M., Kennes, C. (2008). Removal of formaldehyde, methanol, dimethylether and carbon monoxide from waste gases of synthetic resin-producing industries. Chemosphere, 70(8), 1357-1365.
[15] Cho, K.-S., Ryu, H.W., Lee, N.Y. (2000). Biological deodorization of hydrogen sulfide using porous lava as a carrier of Thiobacillus thiooxidans. Journal of bioscience and bioengineering, 90(1), 25-31.
[16] Mudliar, S., Giri, B., Padoley, K., Satpute, D., Dixit, R., Bhatt, P., Pandey, R., Juwarkar, A., Vaidya, A. (2010). Bioreactors for treatment of VOCs and odours–a review. Journal of environmental management, 91(5), 1039-1054.
[17] Dobslaw, D., Schoeller, J., Krivak, D., Helbich, S., Engesser, K.-H. (2019). Performance of different biological waste air purification processes in treatment of a waste gas mix containing tert-butyl alcohol and acetone: A comparative study. Chemical engineering journal, 355, 572-585.
[18] Fu, Y., Shao, L., Tong, L., Liu, H. (2011). Ethylene removal efficiency and bacterial community diversity of a natural zeolite biofilter. Bioresource technology, 102(2), 576-584.
[19] Aizpuru, A., Malhautier, L., Roux, J., Fanlo, J. (2003). Biofiltration of a mixture of volatile organic compounds on granular activated carbon. Biotechnology and bioengineering, 83(4), 479-488.
[20] Khammar, N., Malhautier, L., Degrange, V., Lensi, R., Fanlo, J.-L. (2004). Evaluation of dispersion methods for enumeration of microorganisms from peat and activated carbon biofilters treating volatile organic compounds. Chemosphere, 54(3), 243-254.
[21] Ondarts, M., Hort, C., Sochard, S., Platel, V., Moynault, L., Seby, F. (2012). Evaluation of compost and a mixture of compost and activated carbon as biofilter media for the treatment of indoor air pollution. Environmental technology, 33(3), 273-284.
[22] Feng, Y., Yu, Y., Qiu, L., Yang, Y., Li, Z., Li, M., Fan, L., Guo, Y. (2015). Impact of sorption functional media (SFM) from zeolite tailings on the removal of ammonia nitrogen in a biological aerated filter. Journal of industrial and engineering chemistry, 21, 704-710.
[23] von Eckstaedt, S.V., Charles, W., Ho, G., Cord-Ruwisch, R. (2016). Novel process of bio-chemical ammonia removal from air streams using a water reflux system and zeolite as filter media. Chemosphere, 144, 257-263.
[24] Zagorskis, A.,Baltrenas, P. (2010). Air treatment efficiency of biofilter with adsorbing zeolite layer. Ekologija, 56(1-2), 72-78.
[25] Ferdowsi, M., Ramirez, A.A., Jones, J.P., Heitz, M. (2017). Elimination of mass transfer and kinetic limited organic pollutants in biofilters: A review. International biodeterioration and biodegradation, 119, 336-348.
[26] Talaiekhozani, A., Talaie, M.R., Fulazzaky, M.A. (2016). Evaluation of formaldehyde removal from contaminated air by using a biotrickling filter reactor in a continuous condition. Journal of air pollution and health, 1(2), 69-76.
[27] Hu, Q.-y.,Wang, C. (2015). Interaction of gaseous aromatic and aliphatic compounds in thermophilic biofilters. Journal of hazardous materials, 300, 210-217.
[28] Wang, C., Kong, X., Zhang, X.-Y. (2012). Mesophilic and thermophilic biofiltration of gaseous toluene in a long-term operation: performance evaluation, biomass accumulation, mass balance analysis and isolation identification. Journal of hazardous materials, 229, 94-99.
[29] Chen, H., Yang, C., Zeng, G., Luo, S., Yu, G. (2012). Tubular biofilter for toluene removal under various organic loading rates and gas empty bed residence times. Bioresource technology, 121, 199-204.
[30] Hajizadeh, Y., Amin, M.-M., Ebrahim, K., Parseh, I. (2018). Biodeterioration of 1, 1-dimethylhydrazine from air stream using a biofilter packed with compost-scoria-sugarcane bagasse. Atmospheric Pollution Research, 9(1), 37-46.
[31] Chou, M.,Li, S. (2009). Treatment VOC mixtures in air streams by a biofilter packed with fern chips. Journal of Environmental Engineering and Management, 19(4), 203-211.
[32] Keyser, M., Conradie, M., Coertzen, M., Van Dyk, J. (2006). Effect of coal particle size distribution on packed bed pressure drop and gas flow distribution. Fuel, 85(10-11), 1439-1445.
[33] Cho, K.-S., Hirai, M., Shoda, M. (1992). Enhanced removal efficiency of malodorous gases in a pilot-scale peat biofilter inoculated with Thiobacillus thioparus DW44. Journal of fermentation and bioengineering, 73(1), 46-50.
[34] Chung, Y. C., Huang, C., Tseng, C. P. (1996). Operation optimization of Thiobacillus thioparus CH11 biofilter for hydrogen sulfide removal. Journal of biotechnology, 52(1), 31-38.