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Faculté des Sciences appliquées
Faculté des Sciences appliquées
MASTER THESIS
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Rheology and drying characteristics of sludge in the region of Liege

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Al Sayed, Mohamad Wael ULiège
Promotor(s) : Léonard, Angélique ULiège
Date of defense : 4-Sep-2023/5-Sep-2023 • Permalink : http://hdl.handle.net/2268.2/18322
Details
Title : Rheology and drying characteristics of sludge in the region of Liege
Translated title : [fr] Rhéologie et caractéristiques de séchage des boues dans la région de Liège
Author : Al Sayed, Mohamad Wael ULiège
Date of defense  : 4-Sep-2023/5-Sep-2023
Advisor(s) : Léonard, Angélique ULiège
Committee's member(s) : Lambert, Stéphanie ULiège
Parra Angarita, Sergio Luis ULiège
Toye, Dominique ULiège
Language : English
Number of pages : 101
Keywords : [en] Sludge
[en] dewatered sludge
[en] Rheology
[en] Drying characteristics
[en] Total solid content
[en] Volatile solids content
[en] Convective Macro-drying
[en] Convective Micro-drying
[en] Texture profile analysis TPA
[en] Penetrometry
[en] Dewatered sludge
[en] Wastewater treatment plants
Discipline(s) : Engineering, computing & technology > Chemical engineering
Funders : University of Liege
Name of the research project : Rheology and drying characteristics of sludge in the region of Liege
Target public : Researchers
Professionals of domain
Student
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master : ingénieur civil en chimie et science des matériaux, à finalité spécialisée en Chemical Engineering
Faculty: Master thesis of the Faculté des Sciences appliquées

Abstract

[fr] This study delves into the drying behavior and rheological properties of sludge in the Liege region, focusing
on characterising essential parameters to contribute to the optimization of sludge management by
understanding the influencing characteristics and properties. A series of experiments is conducted on sludge
samples from wastewater treatment plants to explicate the diversity of sewage sludge in the Liege region,
covering the possible factors that can alter sludge drying, and rheology such as origins, history of treatment,
mechanical traits, and others. Five wastewater treatment stations in Liege were covered, each utilizing similar
or different treatment and mechanical methods. Experiments cover dry matter content determination,
volatile matter content analysis, convective micro-drying, convective macro-drying, texture profile analysis
(TPA), penetrometry, volume and area change during drying, and amplitude sweep. The study contributes
valuable insights into sludge behavior during drying and highlights parameters critical for effective sludge
management. By characterizing properties such as adhesiveness, cohesiveness, hardness, viscoelastic and
rheological behavior, relate them to the drying performance illustrated by the drying flux, duration and
moisture content change. This research provides a contribution for a better future, adding knowledge to a
field that still have rooms for optimization. The findings may empower wastewater treatment facilities to
make decisions regarding sludge handling by presenting the impact of rheological and texture properties
on the drying behavior, aiming to enhance operational efficiency, reduce environmental impacts, and align
with sustainable waste management practices.


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Author

  • Al Sayed, Mohamad Wael ULiège Université de Liège > Master ingé. civil chim. & sc. mat., à fin.

Promotor(s)

Committee's member(s)

  • Lambert, Stéphanie ULiège Université de Liège - ULiège > Department of Chemical Engineering > Nanomaterials, Catalysis, Electrochemistry
    ORBi View his publications on ORBi
  • Parra Angarita, Sergio Luis ULiège Université de Liège - ULiège > Department of Chemical Engineering > PEPs - Products, Environment, and Processes
    ORBi View his publications on ORBi
  • Toye, Dominique ULiège Université de Liège - ULiège > Department of Chemical Engineering > PEPs - Products, Environment, and Processes
    ORBi View his publications on ORBi
  • Total number of views 28
  • Total number of downloads 62










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