Untreated domestic sewerage still poses a serious threat to the environment in ruralareas. The lack of simultaneous construction of water supply and sewerage systemsin rural areas contributed to the significant imbalance between water supply and sewagedischarge. Raw sewage, entering the natural receiver, cause rapid degradation oflife and contribute to the biological imbalance in the environment. Untreated sewagecan cause the deterioration of water quality in private wells and may even lead to itstotal contamination.In areas, where it is impossible to implement collective sewerage systems, there isan alternative in the form of building septic tanks or household sewage treatment plants.The development of household sewage treatment plants in Poland has been observed fordecades. There were 4000 household sewage treatment plants registered in 1998, whilein 1999 this number increased to 18054. A rapid increase was observed in subsequentyears, i.e. in 2008 there were 51,943 registered household sewage treatment plants, in2010 this number increased to about 81 thousand and in 2011 about 103 thousandtreatment plants were registered. In the near future a dramatic increase in the numberof newly built household sewage treatment plants is expected.The aim of this study was to analyze the efficiency of domestic sewage treatmentin a household sewage treatment plant with a ...
