Effects of pH, moisture, and flow pattern on trickle-bed air biofilter performance for BTEX removal

Volatile Organic Compounds Removal Methods: A Review

“…Veiga et al (1999) studied the effect of pH on alkyl benzene degradation (between pH 3.5 and 7.0) and found that alkyl benzene degradation increases with pH increase. Lu et al (2002) reported the maximum degradation for BTEX between pH values of 7.5 and 8.0. However, the ideal pH of the biofilter medium depend on the pollutant being treated and the characteristics of the microbial ecosystem.…”

“…Modern approaches enable beds to have evenly-distributed rigid structures preventing bed compaction. Furthermore, biocatalysts can be immobilised within a porous structure (polymer beads) to allow for easier maintenance and preservation of specific microorganisms (Lu et al, 2002). Pressure drop of the filter bed is an important biofiltration parameter which drastically effects on operating cost.…”

Biofiltration of a methanol containing air stream in a dry tubular biofilm reactor using ceramic rings as carrier

“…This equation can be expanded by taking into consideration the fact that the organic matter in the liquid effluent can be solubilized (L es ), such matter includes the metabolites generated during the degradation of the substrate or even the residual methanol; or it can be present in the form of suspended organic solids (L em ), because of the parts of the biomass that become detached from the support [11]:…”

“…Cox et al [6] reported a value of 46% of ethanol mineralization; whereas the values calculated with the DTB reactor ranged between 47 and 60%. With other types of substrates, Cox and Deshusses [18] reported values of 50-66% when treating toluene vapors, and Lu et al, [11] achieved mineralization of 35-49% treating BTEX mixtures.…”

生物滤池在处理VOCs和异味气体中的应用研究进展<br>A Review of Biofilter for Treatment of VOCs and Odours

“…、珍珠岩 [17] 、蛭石 [18] 、玻璃珠 [19] 、聚氨酯泡沫塑料 [20] 、聚苯乙烯 [21] [38] 等人研究表明苯系物的降解 作用强度达到最大的 pH 适宜范围为 7.5~8.0。Lee [39] 等也报道苯系物降解的适宜 pH 为 7.0。Veiga [40] 等研 究了不同的 …”