Abstract
Effectiveness of Contaminants Removal in the Summer and Winter Season in a Small Sewage Treatment Plant Operating Based on the Trickling Biofilters Technology
Highlights
Municipal sewage treatment plants usually operate based on the processes enabling the removal of suspended solids, organic compounds, and biogenes
One of the key factors which affect the rate of biological processes in a biofilm is temperature; this applies to the nitrification process, which is largely dependent on the thermal conditions [Hwang and Oleszkiewicz 2007]
According to the study conducted by Kopeć and Świsłowski [2009] for the Bioclere type wastewater treatment plants, the treatment of wastewater is effective when the loading of trickled biofilters with organic compounds does not exceed 0.100 kg O2·L-1·d-1
Summary
Municipal sewage treatment plants usually operate based on the processes enabling the removal of suspended solids, organic compounds, and biogenes (phosphorus and nitrogen). The treatment of sewage from individual households or their small groups in rural areas which are remote from a sewage system poses a serious problem [Chmielowski et al 2011]. Septic tanks should be regularly emptied, which entails high costs [Pryszcz and Mrowiec 2015]. Such a solution is justified when the building plot is going to be connected to a collective sewage system. Another solution to the problem of sewage management in rural areas, where there are no plans for building a complex treatment system, is the use of small sewage treatment plants (including the household ones). In 2015, there were only 27,900 household treatment plants in Journal of Ecological Engineering Vol 21(7), 2020
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