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A three-layer biofilter, mainly filled with sugarcane bagasse and compost, was constructed to treat air contaminated by toluene. Toluene removal efficiency (RE) could be maintained in the range of 80 to 100 % under the conditions of initial concentrations below 1.5 g·m-3 and gas empty bed retention time (EBRT) of 2.0 min. When toluene inlet load (IL) was lower than 100 g·m-3·h-1, elimination capacity...
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