WASTEWATER TREATMENT OF TEXTILE ENTERPRISES USING ALUMINOSILICATES
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Ivanovskiy gosudarstvennyy himiko-tehnologicheskiy universitet
2.
Ivanovskiy gosudarstvennyy himiko-tehnologicheskiy universitet
Russian Federation
Russian Federation
3.
Ivanovskiy gosud. himiko-tehnol. un-t
4.
Ivanovo State University of Chemistry and Technology
Ivanovo, Ivanovo, Russian Federation
Ivanovo, Ivanovo, Russian Federation
Type:
Article
Pages:
from 138
to 146
Status:
In work
Language:
Russian
Keywords:
DYES, ALUMINOSILICATES, WASTEWATER TREATMENT, MODIFICATION
Abstract (English):
The review, based on publications in Russian and foreign publications, presents possible options for using aluminosilicate sorbents for the removal of dyes, surfactants and TVS from wastewater from preparatory, dyeing and finishing shops of textile enterprises. The layered structure of natural minerals, their high sorption activity, good physical and chemical characteristics, as well as low cost, availability, recycling and, in some cases, regeneration, make it economically feasible to use them in wastewater treatment processes after the preparation, dyeing and finishing of textile materials . It is known that the main problem associated with the disposal of wastewater from textile production plants is its toxicity and color. Synthetic dyes are difficult to biodegrade, and in many cases their degradation products are more environmentally hazardous than the original substance. A theoretical justification is given for the high sorption characteristics of natural and modified aluminosilicates in relation to dyes that acquire a positive charge (cationic) when dissolved in water. However, since most of the dyes used in modern enterprises are anionic (direct and active), certain difficulties often arise with their removal. Both traditional and modern methods of solving the problem are described, including new developments from the Department of Chemical Technology of Fiber Materials of the Ivanovo State University of Chemical Technology. The presented analysis of scientific and technical literature allows us to conclude that the available information on the use of natural and modified aluminosilicates for bleaching dyes and sorption of finishing preparations indicates the effectiveness of their use to improve the environmental situation.
The review, based on publications in Russian and foreign publications, presents possible options for using aluminosilicate sorbents for the removal of dyes, surfactants and TVS from wastewater from preparatory, dyeing and finishing shops of textile enterprises. The layered structure of natural minerals, their high sorption activity, good physical and chemical characteristics, as well as low cost, availability, recycling and, in some cases, regeneration, make it economically feasible to use them in wastewater treatment processes after the preparation, dyeing and finishing of textile materials . It is known that the main problem associated with the disposal of wastewater from textile production plants is its toxicity and color. Synthetic dyes are difficult to biodegrade, and in many cases their degradation products are more environmentally hazardous than the original substance. A theoretical justification is given for the high sorption characteristics of natural and modified aluminosilicates in relation to dyes that acquire a positive charge (cationic) when dissolved in water. However, since most of the dyes used in modern enterprises are anionic (direct and active), certain difficulties often arise with their removal. Both traditional and modern methods of solving the problem are described, including new developments from the Department of Chemical Technology of Fiber Materials of the Ivanovo State University of Chemical Technology. The presented analysis of scientific and technical literature allows us to conclude that the available information on the use of natural and modified aluminosilicates for bleaching dyes and sorption of finishing preparations indicates the effectiveness of their use to improve the environmental situation.
Keywords:
DYES, ALUMINOSILICATES, WASTEWATER TREATMENT, MODIFICATION
DYES, ALUMINOSILICATES, WASTEWATER TREATMENT, MODIFICATION
