Inżynieria Ekologiczna (Nov 2015)

OPERATIONAL EFFICIENCY OF WASTEWATER TREATMENT PLANT IN KOLACZYCE

  • Krzysztof Chmielowski,
  • Anna Młyńska,
  • Dariusz Młyński

DOI
https://doi.org/10.12912/23920629/60593
Journal volume & issue
Vol. 45
pp. 44 – 50

Abstract

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In the article the analysis of operational efficiency Wastewater Treatment Plant in Kolaczyce was performed based on the physico-chemical research results of raw sewage and treated sewage between 2010 and 2014. The analysis of values changing of three pollutants indicators – BOD5, CODCr and total suspended solids was performed. Research results indicate that treatment plant works properly. Average value of BOD5 in treated sewage was 10.9 mg O2∙dm-3, CODCr – 71.0 mg O2∙dm-3, total suspended solids – 15.0 mg∙dm-3 so these values were lower than permissible pollutants content in sewage discharged to the collector which is determined by the Polish Ministry of Environmental Regulation of 2014. On satisfactory operational efficiency treatment plant indicates also high percentage reduction of each pollutants indicators (for BOD5 – 97.8%, for ChZTCr – 93.7%, for total suspended solids – 97.6%) and treatment plant reliability factors (WNBZT5= 0.44, WNChZTCr= 0.57, WNzaw.og.= 0.43).

Keywords