Chemical Engineering Laboratory, Faculty of Sciences, University of La Coruña, Rua Alejandro de la Sota, 1, E-15008 La Coruña, Spain.
Bioresour Technol. 2010 Dec;101(24):9493-9. doi: 10.1016/j.biortech.2010.07.101. Epub 2010 Jul 29.
alpha-Pinene biodegradation was evaluated in mesophilic and thermophilic biotrickling filters. The potential of silicone oil for enhancing the removal was evaluated too, at both temperatures. Performance was studied at empty bed residence times between 60 and 14s, and concentrations of 0.06-38.84 gm(-3), with or without silicone oil. Efficiency decreased as the pollutant concentration was increased, showing higher elimination capacities at higher EBRTs. In the absence of silicone oil, better results were obtained in the thermophilic than in the mesophilic bioreactor. At similar loads (360 gm(-3)h(-1)), in the thermophilic bioreactor the elimination capacity was 293 gm(-3)h(-1), with a removal efficiency of 81%, while in the mesophilic BTF the elimination capacity only reached 195 gm(-3)h(-1), for that same load. The presence of a second liquid phase improved performance of both bioreactors. With 5% silicone oil, elimination capacities as high as 2,000 gm(-3)h(-1) were achieved, under either mesophilic or thermophilic conditions.
α-蒎烯的生物降解在中温和嗜热生物滴滤器中进行了评估。还评估了硅油在这两种温度下增强去除的潜力。在空床停留时间为 60 到 14 秒之间，以及浓度为 0.06 到 38.84gm(-3)的条件下，研究了性能，无论是否添加硅油。随着污染物浓度的增加，效率降低，在更高的 EBRTs 下表现出更高的去除能力。在没有硅油的情况下，嗜热生物反应器的效果优于中温生物反应器。在相似的负荷（360gm(-3)h(-1)）下，在嗜热生物反应器中的去除率为 81%，而在中温 BTF 中的去除率仅达到 195gm(-3)h(-1)，相同的负荷。第二液相的存在改善了两个生物反应器的性能。在 5%的硅油存在下，在中温和嗜热条件下，消除率高达 2000gm(-3)h(-1)。
