Effect of Digested Sludge Properties on Mechanical Dewatering Efficiency: An Experimental Approach

Autor: F. Nauleau, J.-C. Mégnien, R. Girault, E. Dieudé-Fauvel, F. Beline, Gilbert Bridoux
Přispěvatelé: Irstea Publications, Migration, Technologies et systèmes d'information pour les agrosystèmes (UR TSCF), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), SAUR, Gestion environnementale et traitement biologique des déchets (UR GERE)
Rok vydání: 2015
Předmět:
Zdroj: Drying Technology
Drying Technology, Taylor & Francis, 2015, 33 (11), pp.1295-1301. ⟨10.1080/07373937.2015.1026978⟩
4th European Conference on Sludge Management, ECSM 2014
4th European Conference on Sludge Management, ECSM 2014, May 2014, Izmir, Turkey
ISSN: 1532-2300
0737-3937
DOI: 10.1080/07373937.2015.1026978
Popis: National audience; To optimize the anaerobic digestion process of residual sludge, co-substrates addition and pre-treatments are increasingly being employed. Nevertheless, if these processes allow the optimization of biogas production, they can significantly impact the efficiency of mechanical dewatering processes for digested sludge. In this article, the impact of co-substrate addition (oily sludge) and thermal pre-treatment on the efficiency of mechanical dewatering of digested sludge was investigated. To this purpose, mechanical dewatering experiments were conducted at lab-scale by using a filtration-compression cell to determine the limit dryness of various digestates. In addition, control factors of the mechanical dewatering efficiency of digested sludge were investigated. Results highlight that 67% of the variance of the limit dryness of digestates is due to the variable 'volatile solid/total solid ratio
Databáze: OpenAIRE
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