ECONOMIC JUSTIFICATION FOR THE CHOICE OF A WASTEWATER TREATMENT SYSTEM DIVERTED FROM A MANOR-TYPE HOUSE THAT IS NOT CONNECTED TO A CENTRALIZED SEWER SYSTEM
The ecology of water is one of the most important components of the ecosystem. Wastewater is water polluted as a result of human economic activity. The issue of wastewater treatment from individual developments cannot but worry today. This is due to the growth of suburban low-rise buildings. The article provides an economic justification for the wastewater treatment system from a manor-type house that is not connected to a centralized sewer system. The problems of the lack of a centralized system in the districts of the Perm region are considered. The analysis of the existing systems of autonomous sewerage is carried out, the classification scheme of these systems by type of purification is presented. An economic comparison of the installation, the use of a cesspool and a septic tank with a biofilter was carried out. It has been established that the most optimal system, in terms of convenience and economic benefits, is a septic tank with a biofilter. An economically advantageous system, relative to the cesspool, is also a septic tank with a biofilter.