Biological treatment of a contaminated gaseous emission containing monochlorobenzene

F. S. C. Bastos, A. O. S. S. Rangel, P. M. L. Castro*, R. M. Ferreira Jorge

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


This study presents the operation of a biotrickling filter when treating a monochlorobenzene (MCB) contaminated gaseous emission. Treatment dynamics were characterised by exposing the reactor to various MCB Organic Loads (OL). The use of different growth support materials, namely limestone, sand, ceramic and PVC pall-rings, was investigated. Limestone led to clogging of the reactor due to the accumulation of surface precipitates, but PVC pall-rings allowed for a uniform biofilm growth. The biotrickling filter presented maximum removal efficiency (RE, 95%) under OL regimes of 10 g m−3-reactor h−1. Treatment inhibition was observed when the reactor was exposed to OL of 45 g m−3-reactor h−1 with RE reaching a minimum value (8%) and elimination capacity of 8 g m3-reactor h−1 The first half of the reactor height was the predominant section for MCB biodegradation and increasing the mineral medium redrculation rate was beneficial for the overall treatment.

Original languageEnglish
Pages (from-to)1537-1544
Number of pages8
JournalEnvironmental Technology
Issue number12
Publication statusPublished - 1 Dec 2003


  • Biological treatment
  • Biotrickling filter
  • Gaseous emissions
  • Monochlorobenzene


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