E3S Web Conf.
Volume 312, 202176th Italian National Congress ATI (ATI 2021)
|Number of page(s)||9|
|Section||Systems for Sustainable Energy Generation|
|Published online||22 October 2021|
Combined Heat and Power generation exploiting the biogas production from urban wastewaters treatment: the Genoa case study
Università degli Studi di Genova, DIME sez. TEC, Via all’Opera Pia 15a, Genova, 16145, Italy
Wastewaters treatment with biological processes is widely applied as a reliable solution to water pollution in urban areas. This process produces sludges and process waters. Sludges can be furtherly threated in dedicated plants to produce biogas, that can then be used to produce heat in specific plants, but it is sometimes simply burned using flares. A possible alternative use of biogas is the coupling with a CHP generator which can be used to produce electrical energy and heat. In the present paper, it is investigated the possible exploitation of the sludges produced by a wastewater treatment plant for feeding a sludge treatment plant, both in Genoa (Italy), in order to produce biogas. This work is based on the analysis of available data (2009-2018) provided by the sludge treatment plant technical staff, which showed strong variations in sludge flow rates as a result of the variation of incoming wastewater load. Since the available data is not always correlated with wastewater incoming flows and biogas production, starting from data provided for similar plants operating in Italy, it was possible to estimate a theoretical biogas production which was considered as the reference trend.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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