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Leaching from new generation treated wood: a chemical approach

  • Leaching of biocides from construction products is currently a research topic receiving attention from the European regulation authorities (CEN/TC 351). In this paper we have focused on the leaching behaviour of CBA (copper-borateazoles) treated Pinus sylvestris. To better define the chemistry of the leaching phenomena, two leaching tests (a static equilibrium test and a dynamic surface leaching test) have been carried out on untreated and treated wood, which offered more information about how the leaching of biocides interferes with other substances released from the wood structure. Eluates, in liquid and lyophilised form, were further analyzed by analytical methods. Organic (tebuconazole) and inorganic (Cu, B) biocides were quantified and several organic compounds have been identified (e.g. carboxylic acids, phenols, amines, etc.). Also, the total amount of phenols and of carboxylic groups was determined. Results on inorganic compounds are in accordance with previous studiesLeaching of biocides from construction products is currently a research topic receiving attention from the European regulation authorities (CEN/TC 351). In this paper we have focused on the leaching behaviour of CBA (copper-borateazoles) treated Pinus sylvestris. To better define the chemistry of the leaching phenomena, two leaching tests (a static equilibrium test and a dynamic surface leaching test) have been carried out on untreated and treated wood, which offered more information about how the leaching of biocides interferes with other substances released from the wood structure. Eluates, in liquid and lyophilised form, were further analyzed by analytical methods. Organic (tebuconazole) and inorganic (Cu, B) biocides were quantified and several organic compounds have been identified (e.g. carboxylic acids, phenols, amines, etc.). Also, the total amount of phenols and of carboxylic groups was determined. Results on inorganic compounds are in accordance with previous studies made on treated wood. Furthermore, organic carbon, tebuconazole and other organic compounds' behaviour was extensively investigated. This study aims to complete existing leaching data and to help developing a chemical model for several biocides in wood, including Cu, B and tebuconazole.zeige mehrzeige weniger

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Metadaten
Autoren/innen:M.O. Lupsea, Helena Mathies, Ute Schoknecht, L. Tiruta-Barna, N. Schiopu
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):WIT transactions on ecology and the environment
Jahr der Erstveröffentlichung:2012
Verlag:WIT Press
Verlagsort:Southampton [u.a.]
Jahrgang/Band:162
Ausgabe/Heft:Environmental Impact
Erste Seite:529
Letzte Seite:540
Freie Schlagwörter:Biocide; CBA treated wood; Leaching; Organic compounds
Veranstaltung:1st International conference on environmental and economic impact on sustainable development, incorporating envrionmental economics, toxikology and brownfields
Veranstaltungsort:New Forest, UK
Beginndatum der Veranstaltung:2012-07-02
Enddatum der Veranstaltung:2012-07-04
DOI:https://doi.org/10.2495/EID120461
ISSN:1743-3541
ISSN:1746-448X
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:19.02.2016
Referierte Publikation:Nein