Abstract The aim of the study was to assess the impact of the duration of the use of a biofiltration bed on the efficiency of biofiltration of sulphur compounds and on the physicochemical and microbiological properties of the bed. The study was carried out at an animal waste treatment plant. Two biofiltration chambers (beds A and B) filled with different organic mixtures (compost soil, peat, coconut fibre and oak bark) were used in the biofilter. Chromatographic analysis showed a very high rate of effectiveness in the first study period, irrespective of the packaging material used. The best effects were obtained for inorganic sulphur compounds (above 99%). The duration of use of the bed material was shown to affect the efficiency of biofiltration. After 3 years of operation, thiol degradation efficiency fell below 50%. The biological decomposition of inorganic compounds (H2S + SO2) was 73% and 59.6% in beds A and B, respectively. Analysis of the biofiltration material indicated stabilization of its physicochemical parameters. Numbers of bacteria were not found to be depend on the duration of use or the type of filtering media.

中文翻译：

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使用堆肥土壤、泥炭、椰子纤维和橡树皮的混合物进行 3 年生物过滤后从空气中去除硫化合物的有效性

摘要 本研究的目的是评估使用生物过滤床的持续时间对硫化合物生物过滤效率以及床的物理化学和微生物特性的影响。该研究是在动物废物处理厂进行的。在生物过滤器中使用了两个充满不同有机混合物（堆肥土、泥炭、椰子纤维和橡树皮）的生物过滤室（床 A 和 B）。色谱分析表明，无论使用何种包装材料，在第一个研究期间都具有非常高的有效率。对于无机硫化合物（99% 以上）获得了最佳效果。已证明床层材料的使用持续时间会影响生物过滤的效率。运行3年后，硫醇降解效率降至50%以下。在床 A 和床 B 中，无机化合物 (H2S + SO2) 的生物分解率分别为 73% 和 59.6%。生物过滤材料的分析表明其物理化学参数稳定。没有发现细菌数量取决于使用时间或过滤介质的类型。