Boštjan Križanec (Author), Alenka Majcen Le Marechal (Author), Ernest Vončina (Author), Darinka Brodnjak-Vončina (Author)

Abstract

Considerable levels of highly toxic polychlorinated dibenzo-p-dioxins (PCCDs) and polychlorinated dibenzofurans (PCDFs) were determined in two among the sixanalysed disperse textile dyes. The dioxin homologue profile of these dyes was similar to that found in some environmental and industrial samples, connected with the textile industry. Dyes contaminated with dioxins were further used in industrial polyester dyeing processes at laboratory scale. We observed the changes in dioxin contents, dioxin transformations and their distribution during the textile dyeing process. After the dyeing and textile finishing processes the content of dioxins was up to fifteen times higher. More than 85% of the total dioxin content was found in dyed polyester. Other 15% was discharged with waste dye bath. Our results confirmed that the presence of dioxins in some textile dyes may be a significant source regardinghuman exposure and environmental contamination.

Keywords

barvanje tekstilij;tekstilna barvila;dioksini;furani;nastanek dioksinov;textile dyeing;textile dyes;dioxins;furans;formation;polychlorinated dibenzofurans;polychlorinated dibenzo-p-dioxins;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FKKT - Faculty of Chemistry and Chemical Engineering
Publisher: Slovensko kemijsko društvo
UDC: 543.6:547.84:667
COBISS: 9647382 Link will open in a new window
ISSN: 1318-0207
Views: 1012
Downloads: 87
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Other data

Secondary language: Slovenian
Secondary abstract: Dioksine predstavljata skupini toksičnih obstojnih spojin polikloriranih dibenzo-p-dioksinov in polikloriranih dibenzofuranov. V okviru naših raziskav smo preverili prisotnost dioksinov v tekstilnih barvilih. Analizirali smo šest vzorcev tekstilnih barvil. V dveh vzorcih tekstilnih disperznih barvil smo določili znatne vsebnosti dioksinov. Porazdelitev dioksinov v teh vzorcih barvil je podobna porazdelitvi dioksinov določeni v nekaterih vzorcih povezanih s tekstilno industrijo. Barvila, ki vsebujejo dioksine smo uporabili v poizkusih barvanja in spremljali spremembe v porazdelitvi in koncentraciji dioksinov skozi postopek barvanja. Masna bilanca dioksinov v postopku barvanja pokaže povečanje vsebnosti dioksinov, medtem ko ostaja njihova porazdelitev nespremenjena. Pri barvanju pri visokih temperaturah in v alkalnem mediju nastajajo dioksini iz prekurzorskih (predhodnih) spojin. Več kot 85% celotne vsebnosti dioksinov smo določili v vzorcih obarvanega poliestra. Preostalih 15% smo določili v odpadni barvalni kopeli. Rezultati raziskav dokazujejo, da prisotnost dioksinov v nekaterih tekstilnih barvilih predstavlja znaten doprinos k vsebnosti teh spojin v širšem okolju.
Secondary keywords: barvanje tekstilij;tekstilna barvila;dioksini;furani;nastanek dioksinov;
URN: URN:NBN:SI
Type (COBISS): Scientific work
Pages: str. 111-118
Volume: ǂVol. ǂ52
Issue: 2
Chronology: 2005
ID: 1743116