复合膜生物膜反应器中气态三氯乙烯（TCE）的去除。

Removal of gaseous trichloroethylene (TCE) in a composite membrane biofilm reactor.

机构信息

Research Group EnVOC, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.

出版信息

J Environ Sci Health A Tox Hazard Subst Environ Eng. 2012;47(7):1046-52. doi: 10.1080/10934529.2012.667326.

DOI:10.1080/10934529.2012.667326

Abstract

A membrane biofilm reactor (MBfR) was investigated for the degradation of trichloroethylene (TCE) vapors inoculated by Burkholderia vietnamiensis G4. Toluene (TOL) was used as the primary substrate. The MBfR was loaded sequentially with TOL, TCE (or both) during 110 days. In this study, a maximum steady-state TCE removal efficiency of 23% and a maximum volumetric elimination capacity (EC) of 2.1 g m(-3) h(-1) was achieved. A surface area based maximum elimination capacity (EC(m)) of 4.2 × 10(-3) g m(-2) h(-1) was observed, which is 2-10 times higher than reported in other gas phase biological treatment studies. However, further research is needed to optimize the TCE feeding cycle and to evaluate the inhibiting effects of TCE and its intermediates on TOL biodegradation.

摘要

采用膜生物膜反应器（MBfR），接种越桔伯克霍尔德氏菌 G4 降解三氯乙烯（TCE）蒸气。以甲苯（TOL）作为初始基质。在 110 天的时间里，MBfR 依次加载 TOL、TCE（或同时加载）。在这项研究中，TCE 的最大稳态去除效率为 23%，最大体积消除容量（EC）为 2.1 g m(-3) h(-1)。观察到基于表面积的最大消除容量（EC(m)）为 4.2×10(-3) g m(-2) h(-1)，比其他气相生物处理研究报道的高出 2-10 倍。然而，需要进一步研究来优化 TCE 进料周期，并评估 TCE 及其中间产物对 TOL 生物降解的抑制作用。