Ottengraf S P, Van Den Oever A H
Department of Chemical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
Biotechnol Bioeng. 1983 Dec;25(12):3089-102. doi: 10.1002/bit.260251222.
In order to eliminate organic pollutants in waste gases, a biological filter bed technique has been developed, with a high self-regenerating capacity and a low pressure drop. The bed consists of an appropriate filling material (mainly peat compost), in order to let the microorganisms grow on the solid surface and to supply them with inorganic nutrients. Most organic compounds are oxidized to carbon dioxide and water. The compositions of the solid phase and the viable organisms present are such that aging is prevented, as a result of which a relatively high activity can be maintained during a long period of time (years). Experiments have been carried out in laboratory-scale columns with composite gas mixtures at varied concentrations and superficial gas velocities. The (macro) kinetics of the elimination processes have been studied, which enables the prediction of the elimination capacity of the filter bed.
为了消除废气中的有机污染物，已开发出一种生物滤床技术，该技术具有高自再生能力和低压降。滤床由合适的填充材料（主要是泥炭堆肥）组成，以便让微生物在固体表面生长并为其提供无机养分。大多数有机化合物被氧化成二氧化碳和水。固相和现存活生物体的组成使得老化得以防止，结果是在很长一段时间（数年）内可以保持相对较高的活性。已在实验室规模的柱中对不同浓度和表观气速的复合气体混合物进行了实验。研究了消除过程的（宏观）动力学，这使得能够预测滤床的消除能力。
