Model sewage treatment on granular filters

The method of "dry" filtration used in the purification of wastewater from oil rain and meltwater from the canvas highway in the Murmansk region and in other cases discussed in the presented article. This method uses granular filters. The article considers the phenomenological model of slow filtration. Some of these filters are able to operate without electricity, with small differences in elevation between the web and the relief road for the discharge of treated wastewater. The article draws upon the previous studies.