Modeling of Electric Energy Consumption during Dairy Wastewater Treatment Plant Operation

Radosław Żyłka, Wojciech Dąbrowski, Paweł Malinowski and Beata Karolinczak
Additional contact information
Radosław Żyłka: Bielmlek Cooperative, 52 Wojska Polskiego St., 17-100 Bielsk Podlaski, Poland
Wojciech Dąbrowski: Faculty of Civil Engineering and Environmental Science, Bialystok University of Technology, 45E Wiejska St., 15-351 Bialystok, Poland
Paweł Malinowski: Department of Statistics and Medical Informatics, Medical University of Bialystok, 37 Szpitalna St., 15-295 Bialystok, Poland
Beata Karolinczak: Faculty of Building Services, Hydro and Environmental Engineering, Warsaw University of Technology, 20 Nowowiejska St., 00-653 Warsaw, Poland

Energies, 2020, vol. 13, issue 15, 1-14

Abstract: The intensification of biological wastewater treatment requires the high usage of electric energy, mainly for aeration processes. Publications on energy consumption have been mostly related to municipal wastewater treatment plants (WWTPs). The aim of the research was to elaborate on models for the estimation of energy consumption during dairy WWTP operation. These models can be used for the optimization of electric energy consumption. The research was conducted in a dairy WWTP, operating with dissolved air flotation (DAF) and an activated sludge system. Energy consumption was measured with the help of three-phase network parameter transducers and a supervisory control and data acquisition (SCADA) system. The obtained models provided accurate predictions of DAF, biological treatment, and the overall WWTP energy consumption using chemical oxygen demand (COD), sewage flow, and air temperature. Using the energy consumption of the biological treatment as an independent variable, as well as air temperature, it is possible to estimate the variability of the total electric energy consumption. During the summer period, an increase in the organic load (expressed as COD) discharged into the biological treatment causes higher electric energy consumption in the whole dairy WWTP. Hence, it is recommended to increase the efficiency of the removal of organic pollutants in the DAF process. An application for the estimation of energy consumption was created.

Keywords: dairy wastewater treatment plant; electric energy consumption; modeling; DAF process; activated sludge system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/15/3769/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/15/3769/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:15:p:3769-:d:388142

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().