Technology Details

Area of Technology:Chemical and Allied

Title of the Innovation: CHLORINE DIOXIDE RELEASING POLYMER FOR WATER DISINFECTION (CLEAN)

Brief About Innovation

CHLORINE DIOXIDE RELEASING POLYMER FOR WATER DISINFECTION (CLEAN)

ABOUT THE TECHNOLOGY

CLEAN is biodegradable polymer based chlorine dioxide releasing polymer which can be used for “on demand” water disinfection. CLEAN can be synthesized for predetermined dose and dose rate of chlorine dioxide by altering its constituents. Being completely biodegradable, it does not create any environmental pollution. Chlorine dioxide (ClO₂) is a very effective biocide for drinking water disinfection and biofouling control. It is an EPA and FDA approved biocide, which under proper generation conditions, unlike chlorine, does not produce halogen-substituted by-products called Trihalomethane (THMs) which are known carcinogens. It is more effective than chlorine and chloramines for inactivation of all types of microorganisms such as bacteria, viruses, fungi and protozoans, including Cryptosporidium and Giardia. However, unlike chlorine, it needs to be generated in situ as it cannot be stored or transported.

 ADVANTAGES

• It remains in dissolve gas form and therefore it has better penetration and thus has effective killing.
• The disinfection efficiency of chlorine dioxide is not influenced by pH and organics present in water.
• The disinfection process does not lead to generation of THM or DBP’s.
• The control over release rate of chlorine dioxide makes this polymer a unique formulation which can be used for water disinfection application having variable time period (i.e., disinfection in 15 mins to a sustained release up to 15 days).
• The polymer is biodegradable and upon degradation converted into fatty acid which can be easily metabolized by human.

APPLICATIONS

• The CLEAN polymer composite can be used for water disinfection under various conditions.
• It can be used to preserve water for longer duration (water storage tank, overhead tanks, water transportation etc).
• Similarly this can also be used as “on the go water” purifier where one can get water purified (pathogen free) in less than 15 minutes.
• CONNECT FOR LICENSING: ajain@nrdc.in; 9467988231