Home / Knowledge / News / Textiles / Nanotech to the rescue in treating textile effluents
Nanotech to the rescue in treating textile effluents
18
Mar '09
Dr. S. Ramaprabhu
Dr. S. Ramaprabhu
Wastewater containing dyes presents a serious environmental problem due to its high toxicity which leads to ground water and surface water pollution. Further, the discharge of colored effluents into water bodies affects the sunlight penetration which in turn decreases the photosynthetic activity. Therefore the removal of the high stable dyes from the textile effluents is of prime importance.

The solution to the above problem can be obtained by using nanomaterials. Notable for their extremely small size, nanomaterials have the potential for wide-ranging industrial, energy, biomedical, and electronic applications. In nanomaterials, the small size ensures that many atoms or molecules will be near interfaces which lead to very high surface area. Surface properties such as energy levels, electronic structure and reactivity can be quite different from interior states and give rise to quite different material properties.

In carbon based nanomaterials, selective functional groups can be attached to the surfaces of these different dimensional nanomaterials and these functional groups can be used to adsorb the dye molecules. The adsorbing capacity is enhanced due to the use of nanomaterials having large surface area.

The present invention, filed as patent by IITM, shows the ability of a novel nanocomposite adsorbent to adsorb dye molecules from basic dyes (Tolune blue, Evan's blue, Trypan blue, Eosin yellow, Coomassie Brilliant Blue), VAT dye, AZO dye, and industrial waste-waters. The nanocomposite adsorbent is made up of nano-metal/nano-metal oxide dispersed on support material which is a combination of one dimensional, two dimensional and three dimensional nanomaterial.

The large surface area and the attachment of proper functional groups on the surface of the nanocomposite adsorbent result in the dye adsorbing capacity and the complete removal of the dye molecules. Ultra violet-visible spectra were studied to ensure the complete color adsorbance. This nanocomposite adsorbent also removes the odor by trapping the gas molecules on the functional groups.

Optimum conditions for the removal of all dyes were obtained with varied adsorbent dosage. The dye adsorbed nanocomposite adsorbent is shown not to give out any of the dye molecules when allowed to react with water and can be re-activated by suitable fluid treatment and reused.

The work is progress to optimize the nanocomposite adsorbent for the complete removal of contamination from leather industrial waste-waters.

Professor S. Ramaprabhu, Alternative Energy and Nanotechnology Laboratory and Nano Functional Materials Technology Centre (NFMTC), Department of physics, is leading a research group on the processing of different types of nanomaterials and the surface area applications of nanomaterials. The research group is involved in state of the art research in Nanotechnology, Carbon nanotubes, Graphene, Hydrogen Energy and Fuel cell.


Fibre2fashion News Desk - India


Must ReadView All

Textiles | On 22nd Jun 2017

Zund unveils cradle feeder roll-feed system for fabrics

Zund Systemtechnik AG, Switzerland’s textile machinery firm that...

Textiles | On 22nd Jun 2017

Hpfabrics opening production facility in Forsyth County

Hpfabrics, manufacturer of raw fabrics, is opening a new production...

Courtesy: Napapijri

Apparel/Garments | On 22nd Jun 2017

Napapijri's Superlight Parka is free of fur and down

Napapijri has introduced the new Superlight Parka, a new lightweight...

Interviews View All

Saket Garg
Garg Corporation

The biggest challenge is lack of skilled workforce and competition from...

Victor Chao
Esmetex

‘In future, clothing boundary lines will become increasingly blurred.’

Pratik Bachkaniwala
Palod Himson Machines

Fabric processing machines are picking up

Marten Alkhagen
Swerea IVF AB

Marten Alkhagen, Senior Scientist - Nonwoven and Technical Textiles of...

Eric Scholler
Groz-Beckert

The Indian market has huge potential in technical textiles, and by far,...

Urs Stalder
Sanitized AG

Urs Stalder, CEO, Sanitized AG, talks about the increasing use of hygiene...

Bani Batra

Bani Batra’s couture wedding collection is inspired by traditional Indian...

Yash P. Kotak
Bombay Hemp Company

One of the directors of Bombay Hemp Company, Yash P. Kotak, speaks to...

Wendell Rodricks
Wendell Rodricks

"We should not compare India and the West. There are things we do that...

Press Release

Press Release

Letter to Editor

Letter to Editor

RSS Feed

RSS Feed

Submit your press release on


editorial@fibre2fashion.com

Letter To Editor






(Max. 8000 char.)

Search Companies





SEARCH

news category


Related Categories:
June 2017

June 2017

Subscribe today and get the latest update on Textiles, Fashion, Apparel and so on.

SUBSCRIBE


Browse Our Archives

GO


E-News Insight
Subscribe Today and Get the
Latest News Update in Your Mail Box.
Advanced Search