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Advantages and Disadvantages of Some Chemical and Physico-Chemical Discoloring Methods (CROSBI ID 521439)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Parac-Osterman, Đurđica ; Đurašević, Vedran ; Sutlović, Ana Advantages and Disadvantages of Some Chemical and Physico-Chemical Discoloring Methods // Book of Proceedings of the 3rd International Textile, Clothing & Design Conference ; Magic World of Textiles / Dragčević, Zvonko ; Hursa, Anica ; Rogale, Dubravko et al. (ur.). Zagreb: Faculty of Textile Technolgy University of Zagreb, 2006. str. 993-997-x

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

Povezanost rada

Kemijsko inženjerstvo, Tekstilna tehnologija