EVALUATION OF A BIOCOMPACT SEWAGE TREATMENT PLANT OPERATING UNDER LOW HYDRAULIC LOADING CONDITIONS

The aim of the research was to evaluate the rural BIOCOMPACT sewage treatment plant The sewage treatment plant of interest has been operating under low hydraulic loading conditions, specifically sewage inflow from a sewerage system that remains below 45% of designed capacity for 3 years. The evaluation of the system was based on physicochemical analyses of raw sewage collected in the channel before mechanical grates and analyses of treated sewage collected from the measuring bed before the outflow of the sewage to the collector The research showed that although operating conditions are difficult, mean concentrations of each pollutant are below admissible values defined by the water quality regulations for this type of system During the research period only in one sewage sample admissible values were exceeded, namely total phosphorus with a concentration of 0 34 mg P(tot) dm(-3) It should be noted that this deviation occurred in winter at low sewage temperatures The research showed that the sewage treatment plant obtained very good results in pollutant removal, despite working under low hydraulic loading conditions