Detoxification of salt-impregnated wood by organic acids in a pulping process
- The paper descibes a novel method to detoxify pine wood (Pinus silvestris L.) treated with CCB-, CCF- CC-, and Cu-HDO-type salt preservatives. In the process of biological detoxification organic acids produced by strains of Antrodia vaillantii and other brown rot fungi are used for the dissolution of the previously fixed inorganic compounds. These findings are the basis for applying an acid pulping process (FORMACELL) developed by Nimz and Schone (1992) at the BFH, Hamburg, to detoxify salt impregnated wood waste with a mixture of acetic and formic acid. First results achieved with wood chips from treated poles after approximately 20 years of service life show that the obtained pulp contains less than 100 ppm of Cr and Cu. The pulp properties were neither influenced by the Cr and Cu ions nor by the age of the poles. The extracted quantities of Cr and Cu remain with the lignin whereas the acids are evaporated and recycled in the pulping process.
Autor*innen: | Ina StephanORCiD, H. Nimz, R.-D. Peek |
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Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Graue Literatur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Minutes of the meetings |
Jahr der Erstveröffentlichung: | 1993 |
Verlag: | IRG |
Verlagsort: | Stockholm |
Ausgabe/Heft: | 93-50012 |
Erste Seite: | 1 |
Letzte Seite: | 11 |
Freie Schlagwörter: | Acidification; CC; CCB; CCF; CuHDO; Detoxification; Disposal; Pulping; Wood waste |
Veranstaltung: | 24th Annual meeting of the International Research Group on Wood Preservation |
Veranstaltungsort: | Orlando, FL, USA |
Beginndatum der Veranstaltung: | 1993-05-16 |
Enddatum der Veranstaltung: | 1993-05-21 |
URL: | http://www.irg-wp.com/irgdocs/details.aspx?id=d44a2d82-2c63-4a45-bfc3-193e23215b4f |
Bemerkung: | Serientitel: IRG WP – Series title: IRG WP |
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 |