Uses of Nanoclays and Adsorbents for Dye Recovery: A Textile Industry Review

Wastewater recovery is one of the most pressing contaminant-related subjects in the textile industry. Many cleaning and recovery techniques have been applied in recent decades, from physical separation to chemical separation. This work reviews textile wastewater recovery by focusing on natural or sy...

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Bibliographic Details
Published in:Applied sciences 2021-12, Vol.11 (23), p.11422
Main Authors: López-Rodríguez, Daniel, Micó-Vicent, Bàrbara, Jordán-Núñez, Jorge, Bonet-Aracil, Marilés, Bou-Belda, Eva
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Antibiotics
bentonite
Carbon
Ceramics industry
Chemical oxygen demand
Chemical separation
clay pigment
Cleaning
Contaminants
Desorption
dye recovery
Dyeing
Dyes
Effluents
Enhanced oil recovery
Food industry
Hybrid composites
Membranes
montmorillonite
nanoclay
Nanoparticles
Particle size
Photocatalysis
Pigments
Pollutants
Polymer matrix composites
Polymers
Reviews
Salinity
Textile industry
Textile industry wastewaters
Wastewater
zeolite
Zeolites
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Summary:Wastewater recovery is one of the most pressing contaminant-related subjects in the textile industry. Many cleaning and recovery techniques have been applied in recent decades, from physical separation to chemical separation. This work reviews textile wastewater recovery by focusing on natural or synthetic nanoclays in order to compare their capabilities. Presently, a wide variety of nanoclays are available that can adsorb substances dissolved in water. This review summarizes and describes nanoclay modifications for different structures (laminar, tubular, etc.) to compare adsorption performance under the best conditions. This adsorbent capacity can be used in contaminant industries to recover water that can be used and be recontaminated during a second use to close the production circle. It explores and proposes future perspectives for the nanoclay hybrid compounds generated after certain cleaning steps. This is a critical review of works that have studied adsorption or desorption procedures for different nanoclay structures. Finally, it makes a future application proposal by taking into account the summarized pros and cons of each nanoclay. This work addresses contaminant reuse, where part of the employed dyes can be reused in printing or even dyeing processes, depending on the fixing capacity of the dye in the nanoclay, which is herein discussed.
ISSN:2076-3417
2076-3417
DOI:10.3390/app112311422