Advertisement
Wednesday, Sep 22, 2021
Outlook.com
Outlook.com

Researchers develop improved water management system to treat toxic textile effluents

Researchers develop improved water management system to treat toxic textile effluents
outlookindia.com
1970-01-01T05:30:00+0530
New Delhi, Sep 9 (PTI) Indian researchers have developed an improved water management system that can completely reuse dye wastewater from textile industries, eliminating its toxicity and making it suitable for domestic and industrial usage, the Department of Science and Technology said on Thursday. 

It can reduce water treatment costs and facilitate reuse of water in dry regions, it added. 

The current three-stage treatment process for wastewater consisting of primary, secondary, and tertiary treatment is unable to treat toxic industrial wastewater.

The stand-alone advanced oxidation process (AOP) treatment technique for colour and odour properties in industrial effluents (dye-based) may be insufficient to meet the set government standards and is also limited due to the high cost of AOPs involving continuous supply of chemical reagents.

It cannot remove the synthetic industrial dyes and the effervescent colour and odour, which have a long-lasting carcinogenic and toxic effect on the ecological and especially aquatic life. 

In order to remove this toxicity, an upgraded solution with the AOP technology is the need of the day, it added. 

Working towards this, researchers from Indian Institute of Technology (IIT) Kanpur along with Malaviya National Institute of Technology, Jaipur and MBM College Jodhpur have developed a modified AOP solution.

This completely modified treatment process consisting of the primary dosing step, followed by the sand filtration step, another AOP and subsequent carbon filtration step.

It eliminates the need for the conventional primary, secondary, and tertiary processes, resulting in maximum colour removal and meets the inland water discharge standards.

The DST -- Water Technology Initiative (WTI), along with the Indian National Academy of Engineering (INAE) -- supported the development of this technology at pilot-level in collaboration with Laxmi Textile Prints, Jaipur for the commissioning of this pilot-scale plant at Textile Industrial Park, Jaipur.

The much-improved AOP technology targeting zero discharge water management system is being utilised for complete reuse of industrial dye wastewater for domestic and industrial usage at a rate of 10 kilo litres/day. 

The treatment of toxic and highly carcinogenic industrial dyes of textile effluents is performed using this AOP technology for degrading and mineralising recalcitrant organic matter from effluent wastewater.

It is a direct replacement of the existing treatment plant processes and consists of a low-cost solution of dye adsorption on acid-modified soil, followed by a photochemical reaction step within a photocatalytic visible light filter and a unique carbon and PAN (polyacrylonitrile) nano-mat fibre filtration process. 

Having been set up on a pilot basis, it remediates industrial wastewater.

The technology has resulted in the recuperation of 50 per cent of the treatment cost incurred from conventional processes for water treatment (especially due to the high cost of sludge disposability) in the water-scarce regions of Rajasthan. 

Further, scaling up of this plant to 100 kilolitres/day capacity to meet the current industrial requirement is underway with automated plant operations, it added. PTI PR KJ


Disclaimer :- This story has not been edited by Outlook staff and is auto-generated from news agency feeds. Source: PTI

More from Website

State Of The Art: NFTs Are Disrupting The Art Space – Faster Than You Know

State Of The Art: NFTs Are Disrupting The Art Space – Faster Than You Know

With NFTs, celebrities and artists are making foray into a new realm of crypto-elitism where they are able to control both the narrative and distribution. While this opens a whole new chapter in the history of art, its true potential is yet to unfold.

Kartik Tyagi Feels 'Fortunate To Play Big Role' In Rajasthan Royals' IPL Win Against Punjab Kings

Kartik Tyagi Feels 'Fortunate To Play Big Role' In Rajasthan Royals' IPL Win Against Punjab Kings

Kartik Tyagi produced a sensational final over to helped Rajasthan Royals beat Punjab Kings by 2 runs in an Indian Premier League thriller.

Kartik Tyagi Snatches Thrilling IPL Win For Rajasthan Royals As Punjab Kings Commit Harakiri

Kartik Tyagi Snatches Thrilling IPL Win For Rajasthan Royals As Punjab Kings Commit Harakiri

With three needed off four balls in the final over, Kartik Tyagi took two wickets to help RR edge out PBKS by 2 runs.

More from Outlook Magazine

Crouching Tigers

Crouching Tigers

Ghee Bowman brings to light the forgotten story of an Indian force’s role in the Battle of France and their fighting withdrawal through Dunkirk. In this excerpt, individual units arrive in northern France and take their positions, awaiting the Wehrmacht onslaught.

Outlook-ICARE India’s Top Universities Rankings 2021: Top 21 Private Medical Universities

Outlook-ICARE India’s Top Universities Rankings 2021: Top 21 Private Medical Universities

Outlook's annual ranking of India’s top 21 Private Medical Universities in 2021 will help students make an informed choice.

Outlook-ICARE India’s Top Universities Rankings 2021: Top 15 Government Medical Universities

Outlook-ICARE India’s Top Universities Rankings 2021: Top 15 Government Medical Universities

Outlook's annual ranking of India’s top 15 Government Medical Universities in 2021 will help students make an informed choice.

Advertisement

Outlook Newsletters

Advertisement