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Chemical Engineering Department, Jaipur National University, Jaipur, Rajasthan, 302017, India Chemical Engineering Department, Malviya National Institute of Technology, Jaipur, Rajasthan, 302017, India U.P. Pollution Control Board, Kanpur, Uttar Pradesh, 208017, India Chemical Engineering Department, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India Irrigation and Water Resource Department, Uttar Pradesh, Bulandshahr, 203001, India Email: rahuliitr2004@gmail.com Manuscript received online 21 July 2020, revised and accepted 30 October 2020 Biodegradation ofbenzene, toluene, ethylbenzeneand o-xylene (BTEX) in a corn-cob based biofilter in five distinct phases for 78 days evaluated in terms of its elimination capacity and removal efficiency. The concentration of the mixture ranges from 0.6056-0.6148, 0.6012-0.6159, 0.6043- 0.6164, and 0.6022-0.6155 g/m3 ,respectively, which depends upon the initial loading rates. The removal of VOC in biofilter under realistic feeding conditions cannot be achieved more than 47%. The overall maximum removal efficiency of BTEX decreases in subsequent phases from 96.436 g/m3/hto 46.937 g/m3/hat inlet loading ranging from 47.72 g/m3/h to 127.418 g/m3/h. Additionally, phylogenetic analysis, biological tests, and 16S rDNA gene analysis identified the most profusely grown BTEX degrading strainas Bacillus Sphaericus. |
