The results of experiments on practical suitability of a biofilter packing made of natural materials – pine cones are provided. Geometric characteristics of a random packing of pine cones are calculated and compared with other types of packings of artificial and natural materials. Aerodynamic tests of the packing are carried out and obtained data are compared with the data for other packings. Some recommendations on improving the performance characteristics of the packing are suggested.

中文翻译：

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装有松果的生物滤池的空气动力学阻力

提供了由天然材料制成的生物滤池（松果）的实际适用性的实验结果。计算松果无规填料的几何特征，并将其与其他类型的人造和天然材料填料进行比较。进行填料的空气动力学测试，并将获得的数据与其他填料的数据进行比较。提出了一些改善包装性能特征的建议。