An Analysis of Seasonal Waste Draining for the Urban Agglomeration Using Statistical Methods

Abstract

The aim of the work was to analyze the seasonality of the sewage outflow from the urban agglomeration of Radom, using statistical methods in the aspect of environmental protection. The research was carried out on the basis of the observational series covering the daily volume of the sewage outflow in the years 2013–2015. The assessment was carried out according to the following stages: identification of the distribution of the average daily sewage outflow in particular months using nuclear estimators, seasonal evaluation using the Colwell indicators and Fourier spectral analysis, and identification of homogeneous seasons with regard to the sewage outflow using the cluster analysis. On the basis of the calculations that were carried out, no significant seasonality of the sewage outflow was noted, which results from the separated character of the sewage system in the urban agglomeration of Radom. The analyses showed that the applied statistical techniques are a practical solution for identifying the seasonality of sewage inflow to the treatment plant, thanks to which it will be possible to take appropriate actions related to minimizing the harmful impact of hydraulic overload on the biotic environment of the natural receiver.

Verification of Empirical Formulas for Calculating Mean Low Flow With the View to Evaluating Available Water Resources

“…This is beneficial in terms of environmental considerations -however, it may cause a barrier to socio-economic development within the given catchment (Operacz et al, 2018). In addition to the significant impact on the quantitative status of the catchment's water resources, the MLF is assumed to be the measure for assessing the possibility of introducing a specific amount of sewage into the receiving body of water, which is a measurable aspect in the quality assessment of such a facility (Kurek et al, 2018). Therefore, it would be justified to conduct analyses related to establishing and verifying current methods for calculating MLF flows in uncontrolled catchments.…”

Application of the Mathematical Simulation Methods for the Assessment of the Wastewater Treatment Plant Operation Work Reliability

“…Pollutants in rivers, lakes, and coastal waters pose a significant threat to the water reservoirs users, because of discharging the sewage after treatment processes into the natural environment. In extreme cases, pollutants that are introduced with sewage into the water can lead to the extinction all of the biological life forms in water and for purging the sewage natural receiver, e.g., surface water or ground water that have self-cleaning skills [6][7][8]. In recent decades, some problems related to the deficiency of required quality water have intensified.…”

Analysis of the Hydraulic Load of a Local WWTP In the South-Eastern Poland Including Hydraulic Capacity of the Sewage Receiver

“…Having regard to the above, an important element of the proper operation of a wastewater treatment plant should be ongoing monitoring and analysis of the amount of sewage flowing out of the areas covered by this WWTP. This type of analysis can be found, for example, in the paper of Młyńska et al [2017] or Młyński et al [2018] that suggest the use of certain statistical tools to forecast the amount of sewage discharged from a sewered area of analyzed agglomeration. Similar studies can be found in the literature, where the authors deal with the modeling of sewage inflow to WWTP, aimed at reducing the negative effects of its hydraulic overload during rainy weather [Kroll et al 2016]; such a situation may occur as a result of the expansion of the existing sewerage infrastructure.…”