Environmental Science and Pollution Research

, Volume 23, Issue 5, pp 4129–4137 | Cite as

Biodegradation of toluene vapor in coir based upflow packed bed reactor by Trichoderma asperellum isolate

  • M. Gopinath
  • C. Mohanapriya
  • K. Sivakumar
  • G. Baskar
  • C. Muthukumaran
  • R. Dhanasekar
Research Article

Abstract

In the present study, a new biofiltration system involving a selective microbial strain isolated from aerated municipal sewage water attached with coir as packing material was developed for toluene degradation. The selected fungal isolate was identified as Trichoderma asperellum by 16S ribosomal RNA (16S rRNA) sequencing method, and pylogenetic tree was constructed using BLASTn search. Effect of various factors on growth and toluene degradation by newly isolated T. asperellum was studied in batch studies, and the optimum conditions were found to be pH 7.0, temperature 30 °C, and initial toluene concentration 1.5 (v/v)%. Continuous removal of gaseous toluene was monitored in upflow packed bed reactor (UFPBR) using T. asperellum. Effect of various parameters like column height, flow rate, and the inlet toluene concentration were studied to evaluate the performance of the biofilter. The maximum elimination capacity (257 g m−3 h−1) was obtained with the packing height of 100 cm with the empty bed residence time of 5 min. Under these optimum conditions, the T. asperellum showed better toluene removal efficiency. Kinetic models have been developed for toluene degradation by T. asperellum using macrokinetic approach of the plug flow model incorporated with Monod model.

Keywords

Biofilter Trichoderma asperellum UFPBR Plug flow model Kinetics Removal efficiency Toluene 

Notes

Acknowledgments

The first author wishes to thank the Management and Department of Biotechnology, Karpaga Vinayaga College of Engineering and Technology, Chennai, for providing facilities to carry out this work. Also thank the Department of Chemical Engineering, Annamalai University for constant support, guidance and encouragement for performing this research work.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • M. Gopinath
    • 1
  • C. Mohanapriya
    • 1
  • K. Sivakumar
    • 1
  • G. Baskar
    • 2
  • C. Muthukumaran
    • 3
  • R. Dhanasekar
    • 4
  1. 1.Department of BiotechnologyKarpaga Vinayaga College of Engineering and TechnologyChennaiIndia
  2. 2.Department of BiotechnologySt Joseph’s College of EngineeringChennaiIndia
  3. 3.Department of Industrial BiotechnologyGovernment College of TechnologyCoimbatoreIndia
  4. 4.Department of Chemical EngineeringAnnamalai UniversityChidambaramIndia

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