Advantages and Disadvantages of Some Chemical and Physico-Chemical Discoloring Methods (CROSBI ID 521439)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Parac-Osterman, Đurđica ; Đurašević, Vedran ; Sutlović, Ana
engleski
Advantages and Disadvantages of Some Chemical and Physico-Chemical Discoloring Methods
Today’ s chemical and physical-chemical wastewater discoloration methods do not completely meet demands regarding degree of discoloration. In this paper discoloration was performed using Fenton (FeSO4• 7H2O+H2O2+H2SO4) and Fenton-like (FeCl3• 6H2O+H2O2+HCOOH) chemical methods and physico-chemical method of coagulation / flocculation (using poly– electrolyte (POEL) combining anion active coagulant (modified poly-acrylamides) and cationic flocculant (product of nitrogen compounds) in combination with adsorption on activated carbon. Suitability of afore-said methods was investigated on reactive dyes, regarding their most common use in textile industry. Oxidative effect of Fenton and Fenton-like reagent resulted in decomposition of colored chromogen and high degree of discoloration. However, the problem is inability of adding POEL in stechiometrical ratio (also present in physical-chemical methods), when phenomenon of overdosing coagulants occurs in order of obtaining higher degree of discoloration, creating potential danger of burdening water with POEL. Input and output water quality was controlled through spectrophotometrical measurements and standard biological parameters.
discoloration; reactive dyes; Fenton; coagulation/flocculation; poly– electrolyte; water quality
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Podaci o prilogu
993-997-x.
2006.
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objavljeno
Podaci o matičnoj publikaciji
Book of Proceedings of the 3rd International Textile, Clothing & Design Conference ; Magic World of Textiles
Dragčević, Zvonko ; Hursa, Anica ; Rogale, Dubravko ; Soljačić, Ivo ; Vujasinović, Edita ; Vuljanić, Nikola
Zagreb: Faculty of Textile Technolgy University of Zagreb
Podaci o skupu
3rd International Textile, Clothing & Design Conference
poster
08.09.2006-11.09.2006
Dubrovnik, Hrvatska