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Title:Removal of vat and disperse dyes from residual pad liquors
Authors:Golob, Vera (Author)
Ojstršek, Alenka (Author)
Files:URL http://dx.doi.org/10.1016/j.dyepig.2004.04.006
 
Language:English
Work type:Unknown ()
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:The efficiency of three wastewater treatment techniques, coagulation/flocculation, adsorption and ultrafiltration, has been studied for the removal of vat and disperse dyes from residual pad liquors. Three inorganic coagulants Al2(SO4)3 18H2O, FeSO4 7H2O, FeCl3 6H2O and commercial cationic flocculant, as individuals and in combination, were tested for the coagulation/flocculation methods. Granular activated carbon was used as an adsorbent in the adsorption technique. Ultrafiltration was performed using a polyethersulfone membrane with a molecular weight cut-off of 10 kDa. Dye removal was evaluated as the difference between concentrations of dyes in pad liquors before and after a particular treatment using absorbance measurements.The obtained results indicated over 90% of dye removal using appropriate coagulants and only 40% using activated carbon. The best results, dye removal over 98%, were achieved using the ultrafiltration technique.
Keywords:textile dyeing, disperse dyes, wastewater, decoloration, wastewater treatment, coagulation, flocculation, adsorption, ultrafiltration, vat dyes
Year of publishing:2005
UDC:677.027.4:628.3
ISSN on article:0143-7208
COBISS_ID:8922390 Link is opened in a new window
NUK URN:URN:SI:UM:DK:ZNQUCNXD
Views:1473
Downloads:81
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Categories:Misc.
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Record is a part of a journal

Title:Dyes and pigments
Shortened title:Dyes pigm.
Publisher:Elsevier
ISSN:0143-7208
COBISS.SI-ID:25357056 New window

Secondary language

Language:English
Keywords:barvanje tekstilij, disperzna barvila, odpadne vode, razbarvanje, čiščenje odpadnih vod, koagulacija, flokulacija, adsorpcija, ultrafiltracija, redukcijska barvila


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