Energy consumption in anaerobic and aerobic based wastewater treatment plants in Italy

The aim of this study is to carry out an experimental investigation on electricity consumption in wastewater treatment plants in Italy based on aerobic and anaerobic digestion wastewater treatment plants (WWTP). The data refer to plants managed by two major water resources management companies in It...

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Autores principales:	Ezio Ranieri, Silvia Giuliano, Ada Cristina Ranieri
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	anaerobic and aerobic digestion cod specific energy demand wastewater treatment plant Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/13ac15c3e02e49788d8db5b777371412
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spelling	oai:doaj.org-article:13ac15c3e02e49788d8db5b7773714122021-11-05T21:14:25ZEnergy consumption in anaerobic and aerobic based wastewater treatment plants in Italy1751-231X10.2166/wpt.2021.045https://doaj.org/article/13ac15c3e02e49788d8db5b7773714122021-07-01T00:00:00Zhttp://wpt.iwaponline.com/content/16/3/851https://doaj.org/toc/1751-231XThe aim of this study is to carry out an experimental investigation on electricity consumption in wastewater treatment plants in Italy based on aerobic and anaerobic digestion wastewater treatment plants (WWTP). The data refer to plants managed by two major water resources management companies in Italy, Hera and Acquedotto Pugliese (AQP). The survey makes use of statistical tools for data analysis of 202 urban wastewater treatment plants. In order to extend the reliability of the survey, electricity consumption data were analysed through three specific energy demand indicators: kWh/m3, kWh/PE•year, kWh/kgCODremoved referred to each plant. The results show that anaerobic systems are advantageous in terms of electricity consumption per m3 as they achieve more than 50% saving with values ranging from 1.02 kWh/m3 for aerobic plants, instead of 0.43 kWh/m3 for the anaerobic ones. Differences have been found in terms of anaerobic digestion efficiency between the data concerning the plants in northern Italy – Hera Company with an average of 0.33 kWh/m3- and those in Apulia – AQP company with an average of 0.53 kWh/m3. Aerobic systems showed more energy consumption also for HERA-managed WWTP. If anaerobic digestion were implemented on all the AQP WWTP, energy savings should be of approximately 16% and approximately 42% if related to HERA anaerobic-based WWTP average performance. Highlights Aerobic digestion WWTP:1.02 kWh/m3; Anaerobic: 0.43 kWh/m3.; MPV are 0.92 kWh/m3, 63 kWh/PE*yr and 1.9 kWh/COD.; The most probable values are for AQP anaerobic plants: 0.53 kWh/m3 and: 1.09 kWh/m3 for aerobic digestion plants.; MPV for all plants are: 1.9 kWh/kg CODremoved.; If all the AD AQP plants higher than 10,000 PE were converted to anaerobic digestion, we would have a saving equal to 42%.;Ezio RanieriSilvia GiulianoAda Cristina RanieriIWA Publishingarticleanaerobic and aerobic digestioncodspecific energy demandwastewater treatment plantEnvironmental technology. Sanitary engineeringTD1-1066ENWater Practice and Technology, Vol 16, Iss 3, Pp 851-863 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	anaerobic and aerobic digestion cod specific energy demand wastewater treatment plant Environmental technology. Sanitary engineering TD1-1066
spellingShingle	anaerobic and aerobic digestion cod specific energy demand wastewater treatment plant Environmental technology. Sanitary engineering TD1-1066 Ezio Ranieri Silvia Giuliano Ada Cristina Ranieri Energy consumption in anaerobic and aerobic based wastewater treatment plants in Italy
description	The aim of this study is to carry out an experimental investigation on electricity consumption in wastewater treatment plants in Italy based on aerobic and anaerobic digestion wastewater treatment plants (WWTP). The data refer to plants managed by two major water resources management companies in Italy, Hera and Acquedotto Pugliese (AQP). The survey makes use of statistical tools for data analysis of 202 urban wastewater treatment plants. In order to extend the reliability of the survey, electricity consumption data were analysed through three specific energy demand indicators: kWh/m3, kWh/PE•year, kWh/kgCODremoved referred to each plant. The results show that anaerobic systems are advantageous in terms of electricity consumption per m3 as they achieve more than 50% saving with values ranging from 1.02 kWh/m3 for aerobic plants, instead of 0.43 kWh/m3 for the anaerobic ones. Differences have been found in terms of anaerobic digestion efficiency between the data concerning the plants in northern Italy – Hera Company with an average of 0.33 kWh/m3- and those in Apulia – AQP company with an average of 0.53 kWh/m3. Aerobic systems showed more energy consumption also for HERA-managed WWTP. If anaerobic digestion were implemented on all the AQP WWTP, energy savings should be of approximately 16% and approximately 42% if related to HERA anaerobic-based WWTP average performance. Highlights Aerobic digestion WWTP:1.02 kWh/m3; Anaerobic: 0.43 kWh/m3.; MPV are 0.92 kWh/m3, 63 kWh/PE*yr and 1.9 kWh/COD.; The most probable values are for AQP anaerobic plants: 0.53 kWh/m3 and: 1.09 kWh/m3 for aerobic digestion plants.; MPV for all plants are: 1.9 kWh/kg CODremoved.; If all the AD AQP plants higher than 10,000 PE were converted to anaerobic digestion, we would have a saving equal to 42%.;
format	article
author	Ezio Ranieri Silvia Giuliano Ada Cristina Ranieri
author_facet	Ezio Ranieri Silvia Giuliano Ada Cristina Ranieri
author_sort	Ezio Ranieri
title	Energy consumption in anaerobic and aerobic based wastewater treatment plants in Italy
title_short	Energy consumption in anaerobic and aerobic based wastewater treatment plants in Italy
title_full	Energy consumption in anaerobic and aerobic based wastewater treatment plants in Italy
title_fullStr	Energy consumption in anaerobic and aerobic based wastewater treatment plants in Italy
title_full_unstemmed	Energy consumption in anaerobic and aerobic based wastewater treatment plants in Italy
title_sort	energy consumption in anaerobic and aerobic based wastewater treatment plants in italy
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/13ac15c3e02e49788d8db5b777371412
work_keys_str_mv	AT ezioranieri energyconsumptioninanaerobicandaerobicbasedwastewatertreatmentplantsinitaly AT silviagiuliano energyconsumptioninanaerobicandaerobicbasedwastewatertreatmentplantsinitaly AT adacristinaranieri energyconsumptioninanaerobicandaerobicbasedwastewatertreatmentplantsinitaly
_version_	1718443962185809920

Energy consumption in anaerobic and aerobic based wastewater treatment plants in Italy

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