PMID: 15242125Jul 10, 2004Paper

Removal of nitriles from synthetic wastewater by acrylonitrile utilizing bacteria

Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
Chun-Chin WangLi-Jung Chen

Abstract

This study describes the ability of two bacteria strains, isolated from an ABS resin manufacturing wastewater treatment system, to remove high acrylonitrile concentrations. Straight chain aliphatic nitrile compound (propionitrile, allyl cyanide); branch chain aliphatic nitrile compound (isobutyronitrilc) and aromatic nitrile compound (benzonitrile) removal by Comamonas testosteroni and Acidovorax sp. was also investigated. The results are: Comamonas testosteroni and Acidovorax sp. can remove acrylonitrile completely up to 1904.8 mg/L within 66.6 h and 1538.5 mg/L within 143.3 h, respectively. Comamonas testosteroni degraded acrylonitrile faster than Acidovorax sp., and accumulated much more acrylic acid in the medium than Acidovorax sp. The addition of acrylamide to the medium was removed by Comamonas testosteroni and Acidovorax sp. Both strains utilized acrylic acid, a metabolic by-product of acrylonitrile, as a carbon source and ammonium nitrogen, a metabolic by-product of acrylonitrile, as a nitrogen source for growth. Comamonas testosteroni and Acidovorax sp. removed propionitrile completely up to 1352.8 mg/L and 975.7 mg/L within 166.9 h, respectively. With isobutyronitrile as a substrate, more than 97.8% could be removed ...Continue Reading

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Citations

Sep 27, 2005·Applied Microbiology and Biotechnology·C M KaoS C Chen
May 10, 2006·Antonie van Leeuwenhoek·Joanne Baxter, Stephen P Cummings
Feb 11, 2011·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Liang ShenYu Liu
Jul 10, 2021·The Journal of Chemical Physics·A PelcS Denifl

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