The indiscriminate release of coloured dye wastewater from cotton/viscose textile industries into water streams not only spoils aesthetics but also affects the ground water quality adversely, posing serious health risks to human as well as aquatic life. Strict environmental norms have pushed these industries to the brink of shutdown owing to noncompliance. Therefore, non-expensive, environment friendly viable technologies are the need of hour to mitigate this ever-escalating problem, particularly for small and unorganized industries with limited financial resources.

BARC has developed 'Radiation assisted Adsorbent technology for Textile Effluent Decolouration (RAd-TED), a unique radiation grafted cotton fabric-based adsorption process for removal of anionic dyes from cotton/viscose textile dyeing/printing wastewater streams. The technology offers a simple, efficient and cost-effective solution to decolorize and recycle cotton/viscose textile wastewater.

1. One step water-based, eco-friendly radiation grafting based fabrication process.
2. No generation of toxic degraded chemicals during treatment process.
3. Small footprint, easily up-scalable as per user's demand.
4. Validated in industrial environment through large scale field trials.
5. Treated water is suitable for reuse by the industry.
6. Savings on fresh water consumption of the industry and associated costs.

1. Suitable for small and medium scale individual cotton/viscose textile printing/dyeing industries with daily waste generation of 50-100 KLD.

The indiscriminate release of coloured dye wastewater from cotton/viscose textile industries into water streams not only spoils aesthetics but also affects the ground water quality adversely, posing serious health risks to human as well as aquatic life. Strict environmental norms have pushed these industries to the brink of shutdown owing to noncompliance. Therefore, non-expensive, environment friendly viable technologies are the need of hour to mitigate this ever-escalating problem, particularly for small and unorganized industries with limited financial resources.

BARC has developed 'Radiation assisted Adsorbent technology for Textile Effluent Decolouration' (RAd-TED), a unique radiation grafted cotton fabric-based adsorption process for removal of anionic dyes from cotton/viscose textile dyeing/printing wastewater streams. The technology offers a simple, efficient and cost-effective solution to decolorize and recycle cotton/viscose textile wastewater.

1. One step water-based, eco-friendly radiation grafting based fabrication process.
2. No generation of toxic degraded chemicals during treatment process.
3. Small footprint, easily up-scalable as per user's demand.
4. Validated in industrial environment through large scale field trials.
5. Treated water is suitable for reuse by the industry.
6. Savings on fresh water consumption of the industry and associated costs.

1. Suitable for small and medium scale individual cotton/viscose textile printing/dyeing industries with daily waste generation of 50-100 KLD.

Radiation grafted cotton fabric adsorbent based process is capable of removing anionic dyes from cotton/viscose textile printing/dyeing wastewater and decolorize it to make it suitable for industrial reuse. The entire process involves following steps:

1. Preparation of functional cotton adsorbent synthesized via one step gamma radiation induced grafting process.
2. Fabrication of adsorbent cartridges from grafted cotton adsorbent.
3. Fixing the adsorbent cartridges to the treatment plant.
4. Passing the pre-treated/pre-filtered wastewater feed through the treatment plant for removal of dyes and Decolouration of wastewater.
5. Recycling of the treated wastewater to save fresh water consumption of industry.
6. Recycling of exhausted cartridge fabric for making low-cost useful products like bags, foot mats, etc.

1. All the raw materials, including monomer, cotton fabric, etc required for preparing the adsorbent are available in the local market.

1. The infrastructure required for commercial production of Rad-TED plant includes, SS containers for grafting process, washing machine, Gamma radiation facility, cartridge assembly and treatment setup fabrication facility.

1. One Chemist and two skilled workers would be adequate for the purpose.

1. Initial one-time investment cost (CapEx) for a 100 KLD plant made of SS304 is ~ Rs 13,00,000. The operational cost (OpEx) approximated at ~Rs.0.037/Liter (including cost of cartridges and other consumables) which is expected to further reduce on commercial scale production of cartridges.