Exergy analysis of cavitation pretreatment of sludge

A number of papers present exergy analyses of various wastewater treatment systems. The current development of these systems is mainly aimed at improving their energy efficiency, reducing the share of sludge subject to storage, and reducing their harmfulness. Some of these systems can be supported b...

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Main Authors: Różycki Sławomir, Banaś Marian
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:E3S Web of Conferences
Online Access:https://doi.org/10.1051/e3sconf/20184900089
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spelling doaj-c05b6859795f4b088fa10fdb7ff3d0022021-02-02T07:24:32ZengEDP SciencesE3S Web of Conferences2267-12422018-01-01490008910.1051/e3sconf/20184900089e3sconf_solina2018_00089Exergy analysis of cavitation pretreatment of sludgeRóżycki SławomirBanaś MarianA number of papers present exergy analyses of various wastewater treatment systems. The current development of these systems is mainly aimed at improving their energy efficiency, reducing the share of sludge subject to storage, and reducing their harmfulness. Some of these systems can be supported by the use of the cavitation phenomenon in the processing. The generation of cavitation requires, however, the use of devices or machines and thus additional energy consumption. Therefore, this treatment should be objectively justified, e.g. through exergy analysis, which takes into account not only the amount of energy used in processes, but also its quality. The paper treats the methodology for determining the impact of the use of cavitation in the exergy balance of sewage sludge treatment system. Then, it presents the results of an exemplary analysis comparing sewage sludge treatment systems (with and without application of cavitation phenomenon) in which biogas is produced during the fermentation, then burned in a co-generator, finally receiving useful energy in the form of electric current and hot flue gas stream.https://doi.org/10.1051/e3sconf/20184900089
collection DOAJ
language English
format Article
sources DOAJ
author Różycki Sławomir
Banaś Marian
spellingShingle Różycki Sławomir
Banaś Marian
Exergy analysis of cavitation pretreatment of sludge
E3S Web of Conferences
author_facet Różycki Sławomir
Banaś Marian
author_sort Różycki Sławomir
title Exergy analysis of cavitation pretreatment of sludge
title_short Exergy analysis of cavitation pretreatment of sludge
title_full Exergy analysis of cavitation pretreatment of sludge
title_fullStr Exergy analysis of cavitation pretreatment of sludge
title_full_unstemmed Exergy analysis of cavitation pretreatment of sludge
title_sort exergy analysis of cavitation pretreatment of sludge
publisher EDP Sciences
series E3S Web of Conferences
issn 2267-1242
publishDate 2018-01-01
description A number of papers present exergy analyses of various wastewater treatment systems. The current development of these systems is mainly aimed at improving their energy efficiency, reducing the share of sludge subject to storage, and reducing their harmfulness. Some of these systems can be supported by the use of the cavitation phenomenon in the processing. The generation of cavitation requires, however, the use of devices or machines and thus additional energy consumption. Therefore, this treatment should be objectively justified, e.g. through exergy analysis, which takes into account not only the amount of energy used in processes, but also its quality. The paper treats the methodology for determining the impact of the use of cavitation in the exergy balance of sewage sludge treatment system. Then, it presents the results of an exemplary analysis comparing sewage sludge treatment systems (with and without application of cavitation phenomenon) in which biogas is produced during the fermentation, then burned in a co-generator, finally receiving useful energy in the form of electric current and hot flue gas stream.
url https://doi.org/10.1051/e3sconf/20184900089
work_keys_str_mv AT rozyckisławomir exergyanalysisofcavitationpretreatmentofsludge
AT banasmarian exergyanalysisofcavitationpretreatmentofsludge
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