Optimization of Sludge Carbon Source Recovery from Waste Activated Sludge Thermo-alkaline Hydrolysis and Short-cut Fermentation Process

Optimization of Sludge Carbon Source Recovery from Waste Activated Sludge Thermo-alkaline Hydrolysis and Short-cut Fermentation Process

Organic products generated from waste activated sludge hydrolysis and fermentation process could be used as supplementary carbon source for enhanced biological nutrient removal. However, accompanied with organics production, large amount of ammonia nitrogen (NH4+-N) and soluble orthophosphorus (SOP)...

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Main Authors: Junjie Li, Ling Wang, Lina Pang
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2017-07-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/1117
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spelling doaj-f39b98c3422f466186375b71613b36dc2021-02-18T20:59:34ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162017-07-015910.3303/CET1759051Optimization of Sludge Carbon Source Recovery from Waste Activated Sludge Thermo-alkaline Hydrolysis and Short-cut Fermentation Process Junjie LiLing WangLina PangOrganic products generated from waste activated sludge hydrolysis and fermentation process could be used as supplementary carbon source for enhanced biological nutrient removal. However, accompanied with organics production, large amount of ammonia nitrogen (NH4+-N) and soluble orthophosphorus (SOP) released, which would be negative to the reutilization of sludge carbon source. In this study, based on wasted activated sludge thermal-alkaline and short-cut fermentation process, optimal conditions for NH4+-N and SOP removal condition, and sludge carbon source recovery from short-cut fermentation liquid have been investigated systematically using response surface method. Results showed that, the removal rate of NH4+-N and SOP were 72.27% and 85.98% respectively, and the SCOD recovery rate was 80.74%. https://www.cetjournal.it/index.php/cet/article/view/1117
collection DOAJ
language English
format Article
sources DOAJ
author Junjie Li
Ling Wang
Lina Pang
spellingShingle Junjie Li
Ling Wang
Lina Pang
Optimization of Sludge Carbon Source Recovery from Waste Activated Sludge Thermo-alkaline Hydrolysis and Short-cut Fermentation Process
Chemical Engineering Transactions
author_facet Junjie Li
Ling Wang
Lina Pang
author_sort Junjie Li
title Optimization of Sludge Carbon Source Recovery from Waste Activated Sludge Thermo-alkaline Hydrolysis and Short-cut Fermentation Process
title_short Optimization of Sludge Carbon Source Recovery from Waste Activated Sludge Thermo-alkaline Hydrolysis and Short-cut Fermentation Process
title_full Optimization of Sludge Carbon Source Recovery from Waste Activated Sludge Thermo-alkaline Hydrolysis and Short-cut Fermentation Process
title_fullStr Optimization of Sludge Carbon Source Recovery from Waste Activated Sludge Thermo-alkaline Hydrolysis and Short-cut Fermentation Process
title_full_unstemmed Optimization of Sludge Carbon Source Recovery from Waste Activated Sludge Thermo-alkaline Hydrolysis and Short-cut Fermentation Process
title_sort optimization of sludge carbon source recovery from waste activated sludge thermo-alkaline hydrolysis and short-cut fermentation process
publisher AIDIC Servizi S.r.l.
series Chemical Engineering Transactions
issn 2283-9216
publishDate 2017-07-01
description Organic products generated from waste activated sludge hydrolysis and fermentation process could be used as supplementary carbon source for enhanced biological nutrient removal. However, accompanied with organics production, large amount of ammonia nitrogen (NH4+-N) and soluble orthophosphorus (SOP) released, which would be negative to the reutilization of sludge carbon source. In this study, based on wasted activated sludge thermal-alkaline and short-cut fermentation process, optimal conditions for NH4+-N and SOP removal condition, and sludge carbon source recovery from short-cut fermentation liquid have been investigated systematically using response surface method. Results showed that, the removal rate of NH4+-N and SOP were 72.27% and 85.98% respectively, and the SCOD recovery rate was 80.74%.
url https://www.cetjournal.it/index.php/cet/article/view/1117
work_keys_str_mv AT junjieli optimizationofsludgecarbonsourcerecoveryfromwasteactivatedsludgethermoalkalinehydrolysisandshortcutfermentationprocess
AT lingwang optimizationofsludgecarbonsourcerecoveryfromwasteactivatedsludgethermoalkalinehydrolysisandshortcutfermentationprocess
AT linapang optimizationofsludgecarbonsourcerecoveryfromwasteactivatedsludgethermoalkalinehydrolysisandshortcutfermentationprocess
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