Biodegradation of gas-phase styrene in a high-performance biotrickling filter using porous polyurethane foam as a packing medium

Cheulhyun Moon, Eun Yeol Lee, Sunghoon Park

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

A biotrickling filter (BTF) packed with porous polyurethane (PU) foam sheets was developed and operated for removal of gas-phase styrene. The specific surface area and void fraction of the PU foam sheet were determined to be 497 m2/m3 and 0.92, respectively, by using mathematical modeling and experimental measurement. The effects of gas flow direction (co-current and counter-current), styrene loading rate and empty bed residence time on the efficiency of the BTF were analyzed. The BTF achieved a high elimination capacity of 4.0 ̃ 5.0 kg styrene/m3day due to the high specific surface area of the PU foam. The BTF could be operated repeatedly when excessively-grown biomass was periodically removed, using circulating NaOH solution for 2 h every four days.

Original languageEnglish
Pages (from-to)512-519
Number of pages8
JournalBiotechnology and Bioprocess Engineering
Volume15
Issue number3
DOIs
Publication statusPublished - Jun 2010

Bibliographical note

Funding Information:
This study was financially supported by the Brain Korea

Funding Information:
21 program of Pusan National University and the Pusan National University Internal Research Grant.

Keywords

  • Biomass removal
  • Biotrickling filter
  • Elimination capacity
  • Styrene
  • VOC

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