Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza 11/12 Street, 80-233 Gdańsk, Poland.
Waste Utilization Facility Ltd. in Gdańsk, Jabłoniowa 55 Street, 80-180 Gdańsk, Poland.
Molecules. 2024 Sep 18;29(18):4431. doi: 10.3390/molecules29184431.
The removal of benzene, toluene, ethylbenzene, and xylene (BTEX) from air was investigated in two similar biotrickling filters (BTFs) packed with polyurethane (PU) foam, differing in terms of inoculation procedure (BTF A was packed with pre-incubated PU discs, and BTF B was inoculated via the continuous recirculation of a liquid inoculum). The effects of white rot fungi enzyme extract addition and system responses to variable VOC loading, liquid trickling patterns, and pH were studied. Positive effects of both packing incubation and enzyme addition on biotrickling filtration performance were identified. BFF A exhibited a shorter start-up period (approximately 20 days) and lower pressure drop (75 ± 6 mm HO) than BTF B (30 days; 86 ± 5 mm HO), indicating the superior effects of packing incubation over inoculum circulation during the biotrickling filter start-up. The novel approach of using white rot fungi extracts resulted in fast system recovery and enhanced process performance after the BTF acidification episode. Average BTEX elimination capacities of 28.8 ± 0.4 g/(m h) and 23.1 ± 0.4 g/(m h) were reached for BTF A and BTF B, respectively. This study presents new strategies for controlling and improving the abatement of BTEX in biotrickling filters.
采用两种类似的以聚氨酯（PU）泡沫为填料的生物滴滤塔（BTF）研究了从空气中去除苯、甲苯、乙苯和二甲苯（BTEX），这两种 BTF 的接种程序不同（BTF A 采用预接种的 PU 圆盘进行填充，而 BTF B 通过液体接种物的连续循环进行接种）。研究了添加白腐真菌酶提取物以及系统对可变 VOC 负荷、液体滴滤模式和 pH 的响应的影响。发现包装孵育和酶添加对生物滴滤过滤性能均有积极影响。BFF A 的启动期（约 20 天）和压降（75 ± 6 mm HO）均短于 BTF B（30 天；86 ± 5 mm HO），表明在生物滴滤塔启动期间，包装孵育比接种物循环具有更优越的效果。使用白腐真菌提取物的新方法在 BTF 酸化事件后导致系统快速恢复和增强处理性能。BTF A 和 BTF B 的平均 BTEX 去除容量分别达到 28.8 ± 0.4 g/（m h）和 23.1 ± 0.4 g/（m h）。本研究为控制和改善生物滴滤塔中 BTEX 的去除提供了新策略。
