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TitleWasted sludge treatment contributions in the WWTP total cost
Author(s)Espírito Santo, I. A. C. P.
Fernandes, Edite Manuela da G. P.
Araújo, Maria Madalena Teixeira de
Ferreira, E. C.
KeywordsWWTP optimal design
Secondary settler modeling
Sludge treatment
Cost function minimization
Issue dateApr-2007
JournalWSEAS Transactions on Information Science and Applications
Citation"WSEAS Transactions on Information Science and Applications". ISSN 1709-0832. 4:4 (Apr. 2007) 655-662.
Abstract(s)This paper aims to analyze the cost contribution of a simple wasted sludge process in the WWTP design total cost. The plant design relies on a combined ATV and double exponential model to describe the secondary settler as well as on a simple sludge treatment based on dewatering followed by deposition in landfills. The experiments carried out with three small WWTPs in design show that the chosen wasted biosolids treatment is responsible for 10 to 14% of the total costs. However significantly higher values are obtained when the secondary settler is described by an ATV model.
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series
CGIT - Artigos em revistas de circulação internacional com arbitragem científica
CESP - Artigos em revistas científicas internacionais com arbitragem
LES/ALG - Artigos em revistas científicas internacionais com arbitragem

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