English | German |
trickling filter A system of secondary sewage treatment which is similar to self-purification action of streams; it is more accurately a biological oxidizing bed; the effluent is placed on the stones in the bed and microorganisms present consume the solids as a food supply | Biofilter |
trickling filter | Biofilter |
trickling filter plant | Tropfkörperanlage |
trickling filter plant | Tropffilteranlage |