About the Practice
Problem Statement:

The rapid industrial growth has led to the large production of oily wastewater. Necessity to treat the oily wastewater is an inevitable challenge to manage the greater demand of clean water for rapidly growing population and economy.


A smart surface mesh with reversible wetting properties via a simple, eco-friendly and scalable approach for on demand oil-water separation. ZnO nanowires (NWs) obtained from chemical vapor deposition method were coated on a stainless steel (SS) mesh. The as-synthesized ZnO NWs coated mesh shows super hydrophilic/underwater super oleophobic behaviour. This mesh works in “water-removing” mode, where the super hydrophilic as well as underwater super oleophobic nature allows the water to permeate easily through the mesh while preventing oil. The wetting property of ZnO NWs coated mesh can be switched easily from super hydrophilic to superhydrophobic state and vice versa by simply annealing it at 300°C alternatively under hydrogen and oxygen environment.

About the Innovator

Knowledge Provider / Innovator: Parul Raturi
Address: Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016
City: New Delhi
State: Delhi
PIN Code 110016

Email: parul2001519@gmail.com
Contact No:

Practice Details

Link: Load carrying capacity - 1.5 to 2.0 Mt. Available in two different models of three and four wheels Adjustable tilting and dumping mechanism, thereby saving labour costs Iron Body makes it more durable compared to traditional wooden cart Four-wheel base equalizes load & prevents the yoke gall formation on bullock's neck. Can be attached as trailer with tractor or any other vehicle
Photo Links:

Problem Scale: Around the World

GIAN Reference: GIAN/UAL/050

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