ÎNLĂTURAREA COLORANŢILOR TEXTILI ŞI A SUBSTANŢELOR AUXILIARE PRIN ELECTROFLOTARE LA PRIMA ETAPĂ
Date
2018
Journal Title
Journal ISSN
Volume Title
Publisher
CEP USM
Abstract
A fost studiat procesul de electroflotare a poluanților din sisteme model ce au în compoziția lor substanțe
auxiliare textile și coloranți, dar care diferă prin natura lor.
În rezultatul cercetărilor ştiinţifice s-a constatat că efectul înlăturării amestecului de coloranţi şi substanţe
auxiliare din sistemele studiate depinde de dimensiunile şi sarcina particulelor de coloranţi care, la rândul lor, sunt
dispersate şi stabilizate de substanţele auxiliare textile. Astfel, s-a stabilit că efectul de înlăturare a amestecului de
colorant roșu direct RD cu substanţele auxiliare este mai mare decât efectul de înlăturare a amestecului de colorant
portocaliu activ PA în prezența acelorași substanţe auxiliare (95,0-99,0% și, respectiv, de 74,0-82,0%). Ca urmare,
sistemele care conţin colorant roșu direct RD şi substanţe auxiliare se pot epura prin combinarea proceselor de
electroflotare şi adsorbţie pe cărbune activ, iar soluţiile care conţin colorant portocaliu activ PA şi substanţe
auxiliare se pot epura prin combinarea metodelor de electroflotare, oxidare catalitică şi adsorbţie pe cărbune activ.
The main purpose of the paper was to study the simulation systems which contain textile auxiliaries and dyes, which differ in their nature. As a result of the scientific research it was found that the removal effect of the mixture of dyes and auxiliary substances depends on the dimensions and the charge of the dyestuff particles which at their disposal are dispersed and stabilized by the auxiliaries. Thus, it was established that the effect of removing the mixture which contains direct DR dye and textile auxiliaries is greater than the effect of removing the reactive mixture with RO dye in the presence of the same auxiliary substances (95,0-99,0% and 74,0 to 82,0%). Therefore, systems containing the direct dye DR and auxiliary substances can be treated by combining electroflotation and adsorption on activated carbon, and solutions containing RO dyestuff and auxiliary substances can be treated by combining electroflotation, catalytic oxidation and adsorption on activated carbon.
The main purpose of the paper was to study the simulation systems which contain textile auxiliaries and dyes, which differ in their nature. As a result of the scientific research it was found that the removal effect of the mixture of dyes and auxiliary substances depends on the dimensions and the charge of the dyestuff particles which at their disposal are dispersed and stabilized by the auxiliaries. Thus, it was established that the effect of removing the mixture which contains direct DR dye and textile auxiliaries is greater than the effect of removing the reactive mixture with RO dye in the presence of the same auxiliary substances (95,0-99,0% and 74,0 to 82,0%). Therefore, systems containing the direct dye DR and auxiliary substances can be treated by combining electroflotation and adsorption on activated carbon, and solutions containing RO dyestuff and auxiliary substances can be treated by combining electroflotation, catalytic oxidation and adsorption on activated carbon.
Description
Keywords
consum chimic de oxige, colorant roșu direct, acid 2,2- dihidroximetil propionic și dietilenglicol, electroflotare, chemical oxygen demand removal, electro flotation, simulated dyeing effluent, propylene oxide, 2,2- Bis(hydroxymethyl )propionic acid, diethylene glycol
Citation
MATVEEVICI, V., GONȚA, M., MOCANU, L. Înlăturarea coloranţilor textili şi a substanţelor auxiliare prin electroflotare la prima etapă. In: Studia Universitatis Moldaviae. Seria Științe reale și ale naturii: Biologie. Chimie. Revista științifică. 2018, nr. 1(111), pp. 170-178. ISSN 1814-3237.