Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India; Department of Environmental Engineering and Water Technology, UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands.
Department of Environmental Engineering and Water Technology, UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands.
Bioresour Technol. 2018 Jan;248(Pt B):28-35. doi: 10.1016/j.biortech.2017.08.029. Epub 2017 Aug 9.
The aim of this work was to study the performance of a compost/ceramic bead biofilter (6:4 v/v) for the removal of gas-phase toluene and xylene at different inlet loading rates (ILR). The inlet toluene (or) xylene concentrations were varied from 0.1 to 1.5gm, at gas flow rates of 0.024, 0.048 and 0.072mh, respectively, corresponding to total ILR varying between 7 and 213gmh. Although there was mutual inhibition, xylene removal was severely inhibited by the presence of toluene than toluene removal by the presence of xylene. The biofilter was also exposed to transient variations such as prolonged periods of shutdown (30days) and shock loads to envisage the response and recuperating ability of the biofilter. The maximum elimination capacity (EC) for toluene and xylene were 29.2 and 16.4gmh, respectively, at inlet loads of 53.8 and 43.7gmh.
本研究旨在考察堆肥/陶瓷珠生物滤池（体积比 6:4）在不同进气负荷率（ILR）下去除气相甲苯和二甲苯的性能。分别在气体流速为 0.024、0.048 和 0.072mh 下，将进气中的甲苯（或）二甲苯浓度从 0.1 变化到 1.5gm，相应的总 ILR 变化范围为 7 到 213gmh。尽管存在相互抑制作用，但甲苯对二甲苯的去除存在严重的抑制作用，而二甲苯对甲苯的去除则受到抑制。该生物滤池还经历了长时间停运（30 天）和冲击负荷等瞬态变化，以评估生物滤池的响应和恢复能力。在进气负荷为 53.8 和 43.7gmh 时，甲苯和二甲苯的最大去除容量（EC）分别为 29.2 和 16.4gmh。
