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Performance of a Hellow Fiber Membrane Diffuser for the Biological Removal of Gaseous BTX  

Son, Young-Gyu (Dept. of Civil & Environmental Engineering, Korea University)
Khim, Jee-Hyeong (Dept. of Civil & Environmental Engineering, Korea University)
Song, Ji-Hyeon (Dept. of Civil & Environmental Engineering, Sejong University)
Publication Information
Journal of Soil and Groundwater Environment / v.11, no.4, 2006 , pp. 25-32 More about this Journal
Abstract
In this study, a novel bioreactor system using a diffuser type hollow fiber membranes (hollow fiber membrane diffuser, HFMD) was applied to investigate the feasibility and biodegradation capacity for the treatment of a gaseous mixture consisting of benzene, toluene and p-xylene(BTX). First, A mixed culture pre-acclimated to toluene effectively biodegraded the BTX mixture at an overall removal efficiency of approximately 70% for a 20-day operational period. It was found that the biodegradation of toluene was slightly inhibited because of the presence of benzene and p-xylene. Second, the elimination capacity (EC) of total BTX increased up to 360 $g/m^3/hr$, which was substantially higher than maximum ECs for BTEX reported in the biofiltration literature. Consequently, the hollow fiber membrane diffuser was considered as an alternative method over other conventional VOC-treating technologies such as biofilters.
Keywords
Hollow fiber membrane; Bioreactors; BTX; Diffuser; Elimination capacity;
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