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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51896

Title: Cell immobilization technique for biotrickle filtering of isopropyl alcohol waste vapor generated by high‐technology industries
Authors: Shen‐Long Tsai
Chi‐Wen Lin
Chih‐Hung Wu
Baoping Xin
Contributors: 國立臺灣海洋大學:地球科學研究所
Keywords: biotrickling filter
cell‐immobilized beads
isopropyl alcohol (IPA)
kinetics
real‐time PCR
Date: 2013-03
Issue Date: 2019-01-03T03:47:30Z
Publisher: Journal of Chemical Technology and Biotechnology
Abstract: Abstract:BACKGROUND: A bench‐scale biotrickling filter coupled with Pseudomonas citronellolis YAIP521‐immobilized polyvinyl alcohol (PVA)/alginate beads was developed for kinetic analysis of microbial removal of isopropyl alcohol (IPA), an organic solvent widely used for fabricating wafers and printed circuit boards.

RESULTS: Response surface methodology (RSM) showed that the optimal ratio of PVA to alginate was 7.5 g to 0.8 g. More than 95% of IPA removal could be achieved at an inlet concentration of 220 ± 34 ppm (w/w) under short residency time. System stability decreased under high IPA concentration and intermittent shock‐loading conditions but increased when using cell‐immobilized beads because the buffer effect limited the adverse impacts of high IPA concentrations on microorganisms, and the system gradually stabilized with IPA removal efficiency as high as 95%. Nevertheless, qPCR indicated that intermittent shock‐loading decreased the biomass in the beads.

CONCLUSION: The experimental results showed that the biotrickling filter system developed effectively diminishes the inhibitory effects of elevated IPA concentration on microbial growth, thereby solving the problem of high IPA loading often encountered in the electronic high‐tech industries. The design of the system along with the population dynamics and reaction kinetics provide superior information to ensure the success of the biotrickling filter system. © 2012 Society of Chemical Industry
Relation: 88(3) pp.364-371
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51896
Appears in Collections:[應用地球科學研究所] 期刊論文

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