Chornokozyns'kyj A. Technological improvement of sewage postdetoxication and utilization for agricultural usage.

Scientific argumentation is offered for technological improvement of sewage postdetoxication by means of the underground irrigation. Reviews and analysis of sources are given. Underground irrigation is well-fulfilled sanitary regulations and economic requirements to methods and technology of the sewage irrigation. Most advanced systems use polyethylene perforated tubes as dampers. Optimal configuration of the dumpers geometry is determined by the different tests and researches. Relation between fall losses and the dumper length is determined. The optimal dampers fall for even irrigation is established. The optimal fall is a prerequisite condition for crop productivity and high quality of sewage postdetoxication. Methods of hydraulic calculations are refined upon. Modular design of underground irrigation unit is created. The biofilter employment for sewage preparing before their using in underground irrigation is worked out. Biofilter work conditions are studied and its efficient parameters are determin ed.