Laboratory Preparation of Simulated Sludge for Anaerobic Digestion Experimentation

Health and environmental factors as well as operational difficulties are major challenges facing the development of an anaerobic digestion process. Some of these problems relate to the use of sludge collected from primary and secondary clarifier units in wastewater treatment plants for laboratory pu...

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Main Authors: Mahmood K. H. Al-mashhadani, Instructor, Stephen J. Wilkinson, Prof. Dr., William B. Zimmerman, Prof. Dr.
Format: Article
Language:English
Published: University of Baghdad 2015-06-01
Series:Journal of Engineering
Subjects:
Online Access:http://joe.uobaghdad.edu.iq/index.php/main/article/view/418
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author Mahmood K. H. Al-mashhadani, Instructor
Stephen J. Wilkinson, Prof. Dr.
William B. Zimmerman, Prof. Dr.
author_facet Mahmood K. H. Al-mashhadani, Instructor
Stephen J. Wilkinson, Prof. Dr.
William B. Zimmerman, Prof. Dr.
author_sort Mahmood K. H. Al-mashhadani, Instructor
collection DOAJ
description Health and environmental factors as well as operational difficulties are major challenges facing the development of an anaerobic digestion process. Some of these problems relate to the use of sludge collected from primary and secondary clarifier units in wastewater treatment plants for laboratory purposes. The present study addresses the preparation of sludge for laboratory purposes by using a mixture that consists of the digested sludge, which is less pathogenic, compared to the collected sludge from the primary or secondary clarifier, and food wastes. The sludge has been tested experimentally for 19 and 32 days under mesophilic conditions. The results show a steady methane production rate from the anaerobic digester which used sludge with a rate of 1.5 l/day and concentration around 60%, with comparatively low H2S gas content (10 ppm). The methane produced from the digester that used only digested sludge decreases during the experimental period.
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spelling doaj.art-476dd6f4a8ce497aa033812caec4abc22023-08-02T02:57:05ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392015-06-01216Laboratory Preparation of Simulated Sludge for Anaerobic Digestion ExperimentationMahmood K. H. Al-mashhadani, Instructor0Stephen J. Wilkinson, Prof. Dr.1William B. Zimmerman, Prof. Dr.2College of Engineering-University of BaghdadDepartment of Chemical Engineering - University of Chester, UKDepartment of Chemical and Biological Engineering - University of Sheffield, UKHealth and environmental factors as well as operational difficulties are major challenges facing the development of an anaerobic digestion process. Some of these problems relate to the use of sludge collected from primary and secondary clarifier units in wastewater treatment plants for laboratory purposes. The present study addresses the preparation of sludge for laboratory purposes by using a mixture that consists of the digested sludge, which is less pathogenic, compared to the collected sludge from the primary or secondary clarifier, and food wastes. The sludge has been tested experimentally for 19 and 32 days under mesophilic conditions. The results show a steady methane production rate from the anaerobic digester which used sludge with a rate of 1.5 l/day and concentration around 60%, with comparatively low H2S gas content (10 ppm). The methane produced from the digester that used only digested sludge decreases during the experimental period.http://joe.uobaghdad.edu.iq/index.php/main/article/view/418Anaerobic digestion, Digested sludge, Food waste, Biogas.
spellingShingle Mahmood K. H. Al-mashhadani, Instructor
Stephen J. Wilkinson, Prof. Dr.
William B. Zimmerman, Prof. Dr.
Laboratory Preparation of Simulated Sludge for Anaerobic Digestion Experimentation
Journal of Engineering
Anaerobic digestion, Digested sludge, Food waste, Biogas.
title Laboratory Preparation of Simulated Sludge for Anaerobic Digestion Experimentation
title_full Laboratory Preparation of Simulated Sludge for Anaerobic Digestion Experimentation
title_fullStr Laboratory Preparation of Simulated Sludge for Anaerobic Digestion Experimentation
title_full_unstemmed Laboratory Preparation of Simulated Sludge for Anaerobic Digestion Experimentation
title_short Laboratory Preparation of Simulated Sludge for Anaerobic Digestion Experimentation
title_sort laboratory preparation of simulated sludge for anaerobic digestion experimentation
topic Anaerobic digestion, Digested sludge, Food waste, Biogas.
url http://joe.uobaghdad.edu.iq/index.php/main/article/view/418
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AT williambzimmermanprofdr laboratorypreparationofsimulatedsludgeforanaerobicdigestionexperimentation