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Mobility of organic carbon from incineration residues
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik. International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria.
International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria.
2008 (engelsk)Inngår i: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 28, nr 8, s. 1301-1309Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Dissolved organic carbon (DOC) may affect the transport of pollutants from incineration residues when landfilled or used in geotechnical construction. The leaching of dissolved organic carbon (DOC) from municipal solid waste incineration (MSWI) bottom ash and air pollution control residue (APC) from the incineration of waste wood was investigated. Factors affecting the mobility of DOC were studied in a reduced 26-1 experimental design. Controlled factors were treatment with ultrasonic radiation, full carbonation (addition of CO2 until the pH was stable for 2.5 h), liquid-to-solid (L/S) ratio, pH, leaching temperature and time. Full carbonation, pH and the L/S ratio were the main factors controlling the mobility of DOC in the bottom ash. Approximately 60 weight-% of the total organic carbon (TOC) in the bottom ash was available for leaching in aqueous solutions. The L/S ratio and pH mainly controlled the mobilization of DOC from the APC residue. About 93 weight-% of TOC in the APC residue was, however, not mobilized at all, which might be due to a high content of elemental carbon. Using the European standard EN 13 137 for determination of total organic carbon (TOC) in MSWI residues is inappropriate. The results might be biased due to elemental carbon. It is recommended to develop a TOC method distinguishing between organic and elemental carbon.

sted, utgiver, år, opplag, sider
2008. Vol. 28, nr 8, s. 1301-1309
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URN: urn:nbn:se:ltu:diva-14972DOI: 10.1016/j.wasman.2007.05.013ISI: 000257041800003Scopus ID: 2-s2.0-44149125061Lokal ID: e6c9cce0-7648-11dc-824d-000ea68e967bOAI: oai:DiVA.org:ltu-14972DiVA, id: diva2:987945
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Validerad; 2008; 20071009 (al)

Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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