Volume: 2, 2023
2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland:
ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: E016
DOI: https://doi.org/10.24326/ICDSUPL2.E016
Published online: 19 April 2023
ICDSUPL, 2, E016 (2023)
Household hybrid constructed wetland wastewater treatment plant – operational reliability analysis
Karolina Jóźwiakowska1*, Piotr Bugajski2
1 Department of Agricultural, Forestry and Transport Machines, Faculty of Production Engineering, University of Life Sciences in Lublin; 28 Głęboka Str., 20–612 Lublin, Poland
2 Department of Sanitary Engineering and Water Management, Faculty of Environmental Engineering and Land Surveying, University of Agriculture in Kraków, 24/28 Mickiewicza Str., 30-059 Kraków, Poland
* Corresponding author: karolina.jozwiakowska@up.lublin.pl
Abstract
The aim of the study was to analyze the operational reliability of a household hybrid constructed wetland wastewater treatment plant serving a single–family building in the village of Krajanów in southwestern Poland. The research also determined the effect of atmospheric air temperature and soil–plant bed temperature on the efficiency of eliminating pollutants from wastewater. The operation of the facility was evaluated on the basis of studies conducted during years 2021–2022. The physical and chemical composition of wastewater after 3 stages of treatment was analyzed, that is, after mechanical treatment in an initial settling tank and after biological treatment in soil–plant beds with vertical and horizontal flow. In the wastewater the following indicators were determined: BOD5, COD, total suspended solids, total nitrogen and total phosphorus. Additionally, the parameters that were also analyzed were the air temperature and the temperature in the constructed wetland bed with horizontal wastewater flow. On the basis of the study, there was observed no statistically significant effect of air or bed temperature on the efficiency of the analyzed pollutants removal. Importantly, during the whole research period no temperature in the soil–plant bed below 0oC was recorded, indicating that the flowing wastewater did not freeze. This made it possible to draw an important conclusion in terms of the operation of the facility, that is, there is no need to regulate the flow of wastewater in constructed wetland beds during winter. By maintaining constant wastewater flow conditions in both beds, it is possible to achieve higher efficiency of pollutants elimination. It was shown that the facility in question provided high efficiency and reliability of wastewater treatment throughout the study period. The values of the analyzed pollution indicators in the treated wastewater did not exceed the permissible values specified in the currently in force in Poland legal act. It was shown that constructed wetland wastewater treatment plants can be successfully used for wastewater treatment under the climatic conditions of southern Poland.
How to cite
K. Jóźwiakowska, P. Bugajski, 2023. Household hybrid constructed wetland wastewater treatment plant – operational reliability analysis. In: 2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL2.E016