Removal of benzene vapor from gaseous streams was studied in two identically sized lab-scale biofiltration columns: one filled with a mixture of raw sugarcane bagasse and glass beads, and the other one packed with a mixture of ground sugarcane bagasse and glass beads, in the same volume ratio, as filter materials. Separate series of continuous tests were performed, in parallel, under the same operating conditions (inlet benzene concentration of 10.0, 20.0 or 50.0 mg m(-3), and superficial gas velocity of 30.6, 61.2 or 122.4 m h(-1)) in order to evaluate and compare the influence of the packing material characteristics upon the biofilter effectiveness. The maximum elimination capacities obtained, at an inlet load of 6.12 g m(-3) h(-1), were 3.50 and 3.80 g m(packing matcrial)(-3) h(-1) with raw and ground sugarcane bagasse, respectively. This was a preliminary study and the results obtained suggest only a limited application with more work needed. (C) 2002 Elsevier Science Ltd. All rights reserved. [References: 10]
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机译：在两个相同尺寸的实验室规模的生物滤池中研究了从气流中去除苯蒸气的方法：一个在其中填充了甘蔗渣和玻璃珠原料的混合物，另一个在其中填充了甘蔗渣和玻璃珠的混合物。相同的体积比，作为过滤材料。在相同的操作条件下（进气苯浓度为10.0、20.0或50.0 mg m（-3），表观气体速度为30.6、61.2或122.4 mh（-1）），分别并行进行独立的一系列连续测试。为了评估和比较填料特性对生物滤池效率的影响。在进口负荷为6.12 g m（-3）h（-1）时，用生甘蔗渣和磨碎的甘蔗渣分别获得的最大清除能力为3.50 g m（包装材料）（-3）h（-1）。这是一项初步研究，获得的结果表明，只有有限的应用程序需要更多的工作。 （C）2002 Elsevier ScienceLtd。保留所有权利。 [参考：10]
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