Pregled bibliografske jedinice broj: 266278
Advantages and Disadvantages of Some Chemical and Physico-Chemical Discoloring Methods
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 ; Soljačić, Ivo ; Vujasinović, Edita ; Vuljanić, Nikola (ur.).
Zagreb: Faculty of Textile Technolgy University of Zagreb, 2006. str. 993-997 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 266278 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Advantages and Disadvantages of Some Chemical and Physico-Chemical Discoloring Methods
Autori
Parac-Osterman, Đurđica ; Đurašević, Vedran ; Sutlović, Ana
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
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, 2006, 993-997
Skup
3rd International Textile, Clothing & Design Conference
Mjesto i datum
Dubrovnik, Hrvatska, 08.09.2006. - 11.09.2006
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
discoloration; reactive dyes; Fenton; coagulation/flocculation; poly– electrolyte; water quality
Sažetak
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.
Izvorni jezik
Engleski
Znanstvena područja
Kemijsko inženjerstvo, Tekstilna tehnologija
