Statistical analysis of the water pollution indicators pertaining to treated municipal sewage introduced to the river

Abstract

The assessment of the ratio of self-purification processes in the natural environment, including the water bodies of streams and rivers is possible by the means of the numerical modelling. Nonetheless, the reliability of results of the qualitative numerical calculations may be affected by the quality of the collected input data and efficiency of the model calibration. The commonly required input data include pollutants characteristics and coefficients for empirical equations of their transport and decay, while calibration of a model requires series of measurements of selected pollutants concentration in water. This paper presents studies of concentration of pollutants measured in the treated sanitary wastewater discharged to the Bystrzyca river from municipal wastewater treatment plant, and their concentrations measured directly in the river, above and below the location of discharge point. The performed qualitative measurements of treated sewage discharged from municipal wastewater treatment plant and water of the Bystrzyca river included determination of COD, BOD5, N-NH4, N-NO2, N-NNO3, TKN, TN, TP and TSS concentration. The presented results of measurements are the first step in development and calibration of the model, allowing to successfully predict the influence of discharged sanitary wastewater on quality of water in the river.

Effect of Stormwater System on the Receiver

“…Babko et al 2016;Pliashechnyk et al 2018, Majerek et al 2019, then there are much fewer works related to the impact of stormwater runoffs.Bioindication was conducted against the background of water quality assessment using chemical indicators such as BOD 5 and COD. In the literature, there is a some of works relating to the assessment of water quality in the Bystrzyca river within the city of LublinGrzywna et al 2016;Gorzel et al 2018].…”

Statistical Methods and Models for Pollutant Control in Municipal Surface Waters

“…However, not only MSTs represent the statistical studies for waters, especially surface waters. Many other statistical methods and models can be remarkably cited in this kind of analysis, as in the papers of Mohammed et al [19], Bărbulescu et al [20], Schreiber et al [21], Kovrov et al [22], Antonopoulos et al [23], Majerek et al [24], Stričević et al [25], Khouri et al [26], Bhat et al [27], and Le et al [28].…”