Poster (Scientific congresses and symposiums)
The Variability of Textural Properties and Drying Characteristics of Dehydrated Sewage Sludge
Parra Angarita, Sergio Luis; Al Sayed, Mohamad Wael; Léonard, Angélique
2024Congrès Français de Génie des Procédés
 

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Keywords :
Sewage Sludge; Drying Behavior; Textural Properties; Viscoelasticity; Adhesiveness; Cohesiveness.
Abstract :
[en] This study delves into the variability of drying behavior and textural properties of real samples of dehydrated sewage sludge (DSS), focusing on characterizing and correlate those parameters. A series of experiments including, 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 were conducted on DSS samples from five wastewater treatment plants (WWTP) located around the city of Liège (Belgium) as shown in figure 1, to explicate the diversity of DSS, covering the possible factors that can alter DSS drying, and texture such as origins, history of treatment, mechanical traits, and others. Table 1 highlights the characteristics of the five WWTPs that were covered in this study, each utilizing similar or different treatment and mechanical methods. By characterizing properties such as adhesiveness, cohesiveness, hardness, viscoelastic, and rheological behavior, it is possible to establish their correlation with the drying process performance, as indicated by factors like drying rate, duration, and alterations in moisture content. The research provides a contribution to a better future, adding knowledge to a field that still has room for enhancement. The findings may empower wastewater treatment facilities to make decisions regarding DSS 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. Finally, the DSS liming effect on the various parameters was analyzed, showing the benefits and possible limitations.
Disciplines :
Chemical engineering
Author, co-author :
Parra Angarita, Sergio Luis ;  Université de Liège - ULiège > Chemical engineering
Al Sayed, Mohamad Wael ;  Université de Liège - ULiège > Faculté des Sciences Appliquées > Master ing. civ. chim. sc. mat. fin. spéc. chem. engi.
Léonard, Angélique  ;  Université de Liège - ULiège > Department of Chemical Engineering > PEPs - Products, Environment, and Processes
Language :
English
Title :
The Variability of Textural Properties and Drying Characteristics of Dehydrated Sewage Sludge
Alternative titles :
[fr] Variabilité des propriétés texturales et des caractéristiques de séchage des boues d'épuration déshydratées
Publication date :
15 October 2024
Number of pages :
1
Event name :
Congrès Français de Génie des Procédés
Event organizer :
Société Française de Génie des Procédés-SFGP
Event place :
Deauville, France
Event date :
15/10/24
Event number :
19
Audience :
International
Additional URL :
Name of the research project :
Sludge dewatering and drying vs rheology
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Funding number :
T.0159.20-PDR
Available on ORBi :
since 21 October 2024

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