Analysis of energy consumption at the Rzeszów Wastewater Treatment Plant

Masłoń, Adam

doi:10.1051/e3sconf/20172200115

Cited by 12 publications

(9 citation statements)

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“…In turn, the report of the Polish Waterworks Chamber of Commerce established the energy-intensity index for the Polish WWTPs at 0.71-1.04 kWh/m 3 (data for 2017) [69]. In the selected Polish WWTPs, the energy intensity is as follows: the Rzeszów WWTP -from 1.03 to 1.57 kWh/BOD5 and 0.865 kWh/m 3 [85], the Krosno WWTP-0.61-1.11 kWh/m 3 [84], the Opole WWTP-0.723 kWh/m 3 and 1.66 kWh/BOD5 [86]. In the Iława WWTP, a significant amount of the generated biogas was used for the production of electricity.…”

Section: Resultsmentioning

confidence: 99%

“…Compared to other Polish WWTPs, the analyzed plant indicated a significant potential for energy production. The electricity demand in other Polish WWTPs achieved the following values: 35%-the Opole WWTP [86], 46.5%-the Dębica WWTP [87], 52.2%-the Zamość WWTP [88], 74.3%-the Rzeszów WWTP [85]. In Poland, there are several energy neutral WWTPs, i.e., the Tychy-Urbanowice WWTP, the Swarzewo WWTP, and the Słupsk WWTP, in which the electricity production from biogas exceeds 100% of the total electricity consumption in the plant [69].…”

Section: Resultsmentioning

confidence: 99%

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The Enhancement of Energy Efficiency in a Wastewater Treatment Plant through Sustainable Biogas Use: Case Study from Poland

et al. 2020

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The improvement of energy efficiency ensuring high nutrients removal is a great concern for many wastewater treatment plants (WWTPs). The energy balance of a WWTP can be improved through the application of highly efficient digestion or its intensification, e.g., through the introduction of the co-substrates with relatively high energy potential to the sewage sludge (SS). In the present study, the overview of the energetic aspect of the Polish WWTPs was presented. The evaluation of energy consumption at individual stages of wastewater treatment along with the possibilities of its increasing was performed. Additionally, the influence of co-digestion process implementation on the energy efficiency of a selected WWTP in Poland was investigated. The evaluation was carried out for a WWTP located in Iława. Both energetic and treatment efficiency were analyzed. The energy balance evaluation of this WWTP was also performed. The obtained results indicated that the WWTP in Iława produced on average 2.54 GWh per year (7.63 GWh of electricity in total) as a result of the co-digestion of sewage sludge with poultry processing waste. A single cubic meter of co-substrates fed to the digesters yielded an average of 25.6 ± 4.3 Nm3 of biogas (between 18.3 and 32.2 Nm3/m3). This enabled covering the energy demand of the plant to a very high degree, ranging from 93.0% to 99.8% (98.2% on average). Importantly, in the presence of the co-substrate, the removal efficiency of organic compounds was enhanced from 64% (mono-digestion) to 69–70%.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

The Enhancement of Energy Efficiency in a Wastewater Treatment Plant through Sustainable Biogas Use: Case Study from Poland

et al. 2020

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“…This study offers a comprehensive review of various methodologies and strategies employed globally to decrease electrical energy consumption in WWTPs. It delves not only into the theoretical aspects [1][2][3][4][5], but also into practical applications [6][7][8][9][10], showcasing successful implementations.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Energy Consumption in a Wastewater Treatment Plant: An Overview

Tsalas,

Golfinopoulos,

Samios

et al. 2024

Energies

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Wastewater Treatment Plants (WWTPs) play a crucial role in maintaining ecological balance, a cornerstone of environmental health for thriving biodiversity and undisturbed natural processes. This balance is crucial for the sustainability of ecosystems, directly influencing human health, biodiversity, and the overall quality of our natural environment. WWTPs contribute to this equilibrium by efficiently removing pollutants and harmful substances from wastewater, thus averting the degradation of water bodies that are essential for numerous ecological processes. WWTPs encompass multiple stages of wastewater and sludge treatment and are significant energy consumers globally, especially in secondary treatment, particularly the activated sludge method which is the most common method. With an upcoming directive from the European Union aiming to reduce energy consumption in WWTPs, this paper focuses on a literature review examining global practices implemented across all stages of WWTP treatment processes. It summarizes the key points of each study, focusing primarily on the outcomes of each application. This document concludes with an in-depth review of each study and provides general conclusions for each group of studies. The objective is to identify methods that have effectively reduced energy consumption and enhanced the overall energy efficiency of WWTPs. The main conclusions indicate that the studies encompass a wide range of applications that achieve significant reductions in energy consumption. However, additional testing of these applications in more diverse operating environments through trials could further enhance their reliability and increase acceptance among WWTP operators.

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“…Así, la implementación y desarrollo de nuevas tecnologías o procesos, pueden disminuir la huella de carbono respecto a las necesidades energéticas y al uso indiscriminado de combustibles fósiles. Una de las actividades que tiene un mayor impacto en el clima, producto de la emisión de GEI, debido a su alta demanda energética, es el tratamiento de agua residuales [1,2,3,4]; sobre todo en las etapas donde se realiza la transferencia de oxígeno atmosférico en oxígeno disuelto, proceso indispensable para la degradación biológica de la materia orgánica.…”

Section: Introductionunclassified

Incremento de la eficiencia estándar de aireación (SAE), de un aireador de superficie de baja velocidad

Plazas

Blanco-Zúñiga²

2022

Investigación e Innovación en Ingenierías

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Objetivo: Evaluar la tasa de transferencia de oxígeno disuelto (OD), en un aireador de superficie de baja velocidad (Low Speed Surface Aerator – LSSA), variando la potencia; y proponer una modificación geométrica de los impulsores, para mejorar la eficiencia de aireación estándar (Standar Aeration Efficiency - SAE). Metodología: Se modeló un LSSA a través de software CAD, y se construyeron 3 prototipos de LSSA, mediante un proceso de impresión 3D, modificando la geometría original del impulsor. Luego se realizaron ensayos a escala piloto, usando los LSSA acoplados a un motorreductor capaz de generar 210 RPM. Finalmente, se determinaron los coeficientes de transferencia de oxígeno, y la eficiencia de aireación en el agua, de los LSSA, por medio de un modelo matemático. Resultados: A partir de las proyecciones obtenidas, se estableció que la modificación geométrica propuesta, incrementa la SAE en un 20.3% y 29.8% para potencias de 1 y 2 vatios (W), respectivamente; manteniendo casi constante la tasa de transferencia estándar de oxígeno (Standar Oxygen Transfer Rate - SOTR); además, la forma geométrica y disposición de los impulsores propuesta, parece favorecer el tiempo de contacto entre la fase gaseosa (aire) y la fase liquida (agua), mejorando el tiempo de permanencia de las burbujas atrapadas, evidencia representada en los coeficientes kLa (h-1). Conclusiones: De acuerdo con los resultados, se puede inferir que estos aireadores de tipo LSSA, pueden ser optimizados con un diseño más eficiente, permitiendo reducir el consumo energético asociado a su funcionamiento, sin penalizar la transferencia de OD.

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Analysis of energy consumption at the Rzeszów Wastewater Treatment Plant

Cited by 12 publications

References 11 publications

The Enhancement of Energy Efficiency in a Wastewater Treatment Plant through Sustainable Biogas Use: Case Study from Poland

The Enhancement of Energy Efficiency in a Wastewater Treatment Plant through Sustainable Biogas Use: Case Study from Poland

Optimization of Energy Consumption in a Wastewater Treatment Plant: An Overview

Incremento de la eficiencia estándar de aireación (SAE), de un aireador de superficie de baja velocidad

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