Biofiltration of trimethylamine, dimethylamine, and methylamine by immobilized Paracoccus sp. CP2 and Arthrobacter sp. CP1

Kuo Ling Ho, Ying Chien Chung, Yueh Hsien Lin, Ching-Ping Tseng*

*Corresponding author for this work

Research output: Contribution to journalArticle

48 Scopus citations

Abstract

A biofilter using granular activated carbon with immobilized Paracoccus sp. CP2 was applied to the elimination of 10-250 ppm of trimethylamine (TMA), dimethylamine (DMA), and methylamine (MA). The results indicated that the system effectively treated MA (>93%), DMA (>90%), and TMA (>85%) under high loading conditions, and the maximum degradation rates were 1.4, 1.2, and 0.9 g-N kg-1 GAC d-1. Among the three different amines treated, TMA was the most difficult to degrade and resulted in ammonia accumulation. Further study on TMA removal showed that the optimal pH was near neutral (6.0-8.0). The supply of high glucose (>0.1%) inhibited TMA removal, maybe due to substrate competition. However, complete TMA degradation was achieved under the co-immobilization of Paracoccus sp. CP2 and Arthrobacter sp. CP1 (∼96%). Metabolite analysis results demonstrated that the metabolite NH4+ concentrations decreased by a relatively small 27% while the metabolite NO2- apparently increased by heterotrophic nitrification of Arthrobacter sp. CP1 in the co-immobilization biofilter.

Original languageEnglish
Pages (from-to)250-256
Number of pages7
JournalChemosphere
Volume72
Issue number2
DOIs
StatePublished - 1 May 2008

Keywords

  • Activated carbon
  • Ammonia
  • Degradation
  • Immobilization
  • Nitrification

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