With increasing concerns about industrial gas contaminants and the growing demand for durable and sustainable technologies, attentions have been gradually shifted to biological air pollution controls. The ability of Pseudomonas putida PTCC 1694 (bacteria) and Pleurotus ostreatus IRAN 1781C (fungus) to treat contaminated gas stream with toluene and its biological degradation was compared under similar operating conditions. For this purpose, a biofilter on the laboratory scale was designed and constructed and the tests were carried out in two stages. The first stage, bacterial testing, lasted 20 days and the second stage, fungal testing, lasted 16 days. Inlet loading rates (IL) for bacterial and fungal biofilters were 21.62 ± 6.04 and 26.24 ± 7.35 g/m3 h respectively. In general, fungal biofilter showed a higher elimination capacity (EC) than bacterial biofilter (18.1 ± 6.98 vs 13.7 ± 4.7 g/m3 h). However, the pressure drop in the fungal biofilter was higher than the bacterial biofilter (1.26 ± 0.3 vs 1 ± 0.3 mm water), which was probably due to the growth of the mycelium. Fungal biofiltration showed a better performance in the removal of toluene from the air stream.

中文翻译：

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基于细菌和真菌的生物滤池处理气流中甲苯蒸气的性能比较。

随着对工业气体污染物的日益关注以及对耐用和可持续技术的需求不断增长，人们的注意力已逐渐转移到生物空气污染控制上。在相似的操作条件下，比较了恶臭假单胞菌PTCC 1694（细菌）和平菇侧枝IRAN 1781C（真菌）处理受甲苯污染的气流及其生物降解的能力。为此目的，设计并构造了实验室规模的生物过滤器，并分两个阶段进行了测试。第一阶段，细菌测试，持续20天，第二阶段，真菌测试，持续16天。细菌和真菌生物滤池的入口负荷率（IL）分别为21.62±6.04和26.24±7.35 g / m3 h。一般来说，真菌生物滤池显示出比细菌生物滤池更高的消除能力（EC）（18.1±6.98对13.7±4.7 g / m3 h）。但是，真菌生物滤池中的压降高于细菌生物滤池（1.26±0.3 vs 1±0.3 mm水），这可能是由于菌丝体的生长所致。真菌生物过滤显示出从气流中去除甲苯的更好性能。