Effect of Inorganic Coagulants on the Characteristics in Anaerobic Digested Distillery Stillage Valorization

The aim of the study was to determine the possibility of using coagulation for treatment of anaerobically digested distillery stillage. Post-fermentation sludge from waste product of bioethanol production is usually drained. Then, condensed sediments are directed as a fertilizer for arable fields. T...

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Main Authors:	Magda Dudek, Paulina Rusanowska, Marcin Zieliński, Marcin Dębowski
Format:	Article
Language:	English
Published:	MDPI AG 2018-10-01
Series:	Proceedings
Subjects:	coagulation anaerobic leachate distillery stillage
Online Access:	http://www.mdpi.com/2504-3900/2/20/1271

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record_format	Article
spelling	doaj-c9b5d03108ee4e75b022659c6864a1982020-11-24T23:04:56ZengMDPI AGProceedings2504-39002018-10-01220127110.3390/proceedings2201271proceedings2201271Effect of Inorganic Coagulants on the Characteristics in Anaerobic Digested Distillery Stillage ValorizationMagda Dudek0Paulina Rusanowska1Marcin Zieliński2Marcin Dębowski3Department of Environment Engineering, University of Warmia and Mazury in Olsztyn, Warszawska St. 117a, 10-720 Olsztyn, PolandDepartment of Environment Engineering, University of Warmia and Mazury in Olsztyn, Warszawska St. 117a, 10-720 Olsztyn, PolandDepartment of Environment Engineering, University of Warmia and Mazury in Olsztyn, Warszawska St. 117a, 10-720 Olsztyn, PolandDepartment of Environment Engineering, University of Warmia and Mazury in Olsztyn, Warszawska St. 117a, 10-720 Olsztyn, PolandThe aim of the study was to determine the possibility of using coagulation for treatment of anaerobically digested distillery stillage. Post-fermentation sludge from waste product of bioethanol production is usually drained. Then, condensed sediments are directed as a fertilizer for arable fields. The remaining liquid phase due to the high content of organic compounds cannot be discharged to environment. The study used inorganic salts of iron and aluminum as coagulants to treatment liquid fraction obtained after methane fermentation of distillery stillage. In valorization process, the reduction of organic compounds and suspended solids was not sufficient. The highest doses of coagulants reduced COD concentration of about 80% and lower the pH of the solution. However, the dose 10 mL/L is not economically profitable and due to concentration of aluminum or iron it is too harmful for environment.http://www.mdpi.com/2504-3900/2/20/1271coagulationanaerobic leachatedistillery stillage
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Magda Dudek Paulina Rusanowska Marcin Zieliński Marcin Dębowski
spellingShingle	Magda Dudek Paulina Rusanowska Marcin Zieliński Marcin Dębowski Effect of Inorganic Coagulants on the Characteristics in Anaerobic Digested Distillery Stillage Valorization Proceedings coagulation anaerobic leachate distillery stillage
author_facet	Magda Dudek Paulina Rusanowska Marcin Zieliński Marcin Dębowski
author_sort	Magda Dudek
title	Effect of Inorganic Coagulants on the Characteristics in Anaerobic Digested Distillery Stillage Valorization
title_short	Effect of Inorganic Coagulants on the Characteristics in Anaerobic Digested Distillery Stillage Valorization
title_full	Effect of Inorganic Coagulants on the Characteristics in Anaerobic Digested Distillery Stillage Valorization
title_fullStr	Effect of Inorganic Coagulants on the Characteristics in Anaerobic Digested Distillery Stillage Valorization
title_full_unstemmed	Effect of Inorganic Coagulants on the Characteristics in Anaerobic Digested Distillery Stillage Valorization
title_sort	effect of inorganic coagulants on the characteristics in anaerobic digested distillery stillage valorization
publisher	MDPI AG
series	Proceedings
issn	2504-3900
publishDate	2018-10-01
description	The aim of the study was to determine the possibility of using coagulation for treatment of anaerobically digested distillery stillage. Post-fermentation sludge from waste product of bioethanol production is usually drained. Then, condensed sediments are directed as a fertilizer for arable fields. The remaining liquid phase due to the high content of organic compounds cannot be discharged to environment. The study used inorganic salts of iron and aluminum as coagulants to treatment liquid fraction obtained after methane fermentation of distillery stillage. In valorization process, the reduction of organic compounds and suspended solids was not sufficient. The highest doses of coagulants reduced COD concentration of about 80% and lower the pH of the solution. However, the dose 10 mL/L is not economically profitable and due to concentration of aluminum or iron it is too harmful for environment.
topic	coagulation anaerobic leachate distillery stillage
url	http://www.mdpi.com/2504-3900/2/20/1271
work_keys_str_mv	AT magdadudek effectofinorganiccoagulantsonthecharacteristicsinanaerobicdigesteddistillerystillagevalorization AT paulinarusanowska effectofinorganiccoagulantsonthecharacteristicsinanaerobicdigesteddistillerystillagevalorization AT marcinzielinski effectofinorganiccoagulantsonthecharacteristicsinanaerobicdigesteddistillerystillagevalorization AT marcindebowski effectofinorganiccoagulantsonthecharacteristicsinanaerobicdigesteddistillerystillagevalorization
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Effect of Inorganic Coagulants on the Characteristics in Anaerobic Digested Distillery Stillage Valorization

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