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Author(s): S. C. Pinho
M. F. Almeida
O. C. Nunes
Title: Health care waste materials changes under alkaline hydrolysis treatment
Issue Date: 2011
Abstract: In this work has been studied the behavior of some materials present in healthcare wastewhen treated by alkaline hydrolysis. The alkaline hydrolysis was performed with 0.1 M, 1M or 2 M NaOH at 135 ºC. The efficiency of treatment was assessed by changes on themass of the materials samples, and total organic carbon (TOC) and chemical oxygendemand (COD) in the effluent resulting from alkaline hydrolysis. Among the ten testedsamples of materials, adhesive was the most degraded and showed the highest weightloss of 53.8 wt%. The final effluent obtained by alkaline treatment is hazardous due to itshigh pH, TOC and COD. The diaper and adhesive were the materials that released moreTOC and COD to the resulting effluent. Those values were 17.3 and 45.9 g C/l and 42.0and 143.76 g O2/l, respectively.
Subject: Ciências Tecnológicas, Outras ciências da engenharia e tecnologias
Technological sciences, Other engineering and technologies
Scientific areas: Ciências da engenharia e tecnologias::Outras ciências da engenharia e tecnologias
Engineering and technology::Other engineering and technologies
Source: 1st International Conference WASTES: Solutions, treatments and opportunities
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projectos de I&DT em Todos os Domínios Científicos/PTDC/SAU-SAP/114855/2009/Hidrólise alcalina de resíduos hospitalares infecciosos/PTDC/SAU-SAP/114855/2009
info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projetos Estratégicos/UID/EQU/00511/2013 - POCI-01-0145-FEDER-006939/Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia/LEPABE
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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