E3S Web Conf.
Volume 86, 2019The First International Scientific Conference on Ecological and Environmental Engineering 2018
|Number of page(s)||5|
|Published online||22 February 2019|
Influence of variability in the amount of inflow wastewater pollution concentration in small sewer system (case study)
1 University of Agriculture in Krakow, Faculty of Environmental Engineering and Land Surveying, Department of Sanitary Engineering and Water Management, Al. Mickiewicza 21, 31-120, Krakow, Poland
2 2 Krakow University of Economics, Rakowicka 27, 31-510, Krakow, Poland
3 3 University of Life Sciences in Lublin, Akademicka 13, 20-033, Lublin, Poland
* Corresponding author: firstname.lastname@example.org
The aim of study was the analyze of the impact of hydraulic load on the changes in the concentration of pollution indicators in raw sewage in years 2009-2014 in the small wastewater treatment plant. Qualitative analysis for raw sewage was included three parameters: total suspension solid, BOD and COD. The characteristics relation between the concentration of pollution indicators in raw sewage (depend variable) from the hydraulic load(independent variable) was presented by the Pearson linear correlation. In the 6 year study period were collected 32 samples of raw wastewater. Based on the result of linear regression analysis, showed that along with the increasing amount of wastewater in the sewer decrease the concentration of pollutions in raw wastewater. For total suspension solid, increase by 1 m3 of quantity of raw sewage inflowing to wastewater treatment plant, causes a decrease in the concentration of this indicator by 0,53 g·m-3. For the both organic indicators (BOD and COD), the was found that an increase of 1 m3 the amount of raw sewage inflowing to wastewater treatment plant, caused a decrease of 0,75 gO2·m-3 BOD value and 0,66 gO2·m-3 COD value in raw sewage.
© The Authors, published by EDP Sciences, 2019
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