Analysis of the criteria of technological and technical-economic effectiveness of design choices

The authors of the article consider a number of numerical simulation results as well as computation results pertaining to the relative mechanical-economic effectiveness of design choices, local systems of biological wastewater treatment utilized by small-size residential estates, private housing and service enterprises. The authors have developed assessment criteria for technical and comparative technical-economic effectiveness of wastewater treatment systems on the basis of alternating aerobic-treatment machines utilizing biological sludge, and have applied the criteria to a simulation model.