Indian Institute of Technology Ropar (IIT Ropar) invites application for the position Post Doctoral Research Associate
Development of nanobubble technology for water treatment applications
Postion: Post doctoral research associate
Salary: as per the DST norms (Starting from 42000/ month).
Last date: 15th of April, 2021.
Position: 1 (one)
Duration: 3 years
Essential Qualifications: The applicant must meet at least one of the following two criteria.
a. Bachelor's degree in Chemical/Mechanical/Civil/Polymer/Engineering or Technology and Master degree in an allied discipline with good academic record (with/withtout a GATE/CSIR-NET qualified score) with a minimum of 60% marks (or 6.5 Grade points out of 10) (55% marks for SC/ST) and PhD degree in engineering.
b. he relevant experience in industry/academia/research will be given the preference.
a. Good knowledge of the subjects of nanotechnology, fluid mechanics, water treatment, cavitation etc.
b. Excellent writing ability and oral communication skills, and the ability to do multi-task, effectively.
The project details are as follows:
a. Nanobubbles are a novel type of nanoscale bubble system.
b. They have a typical mean spherical diameter of 100–200 nano-meters and they exist in bulk liquid.
c. The most peculiar characteristic of these bulk nanobubbles is their extraordinary longevity.
d. Whilst the lifetime of microbubbles is of the order of minutes and that of microbubbles (1–1000 microns) is on the order of seconds, nanobubbles have been reported to last for weeks and months.
e. The Young–Laplace equation, however, predicts a huge inner gas pressure (e.g., around 30 atm inside a typical 100 nm nanobubble in pure water) and, consequently, bubble dynamics theory of Epstein– Plesset predicts that they would dissolve extremely quickly on a time-scale of about 1–100ms.
f. Though bulk nanobubbles are a relatively new field, because of their unusual longevity they are already attracting a lot of industrial attention and many potential applications have been proposed.
g. Thus, there is immense scope for nanobubbles to impact and even revolutionize many current industrial processes.
h. The potential to exploit the unique properties of NBs for improving water treatment due to
(1) extraordinary longevity
(2) ability of NBs to improve gas transfer into water or influence gas trapped on particle surfaces,
(3) ability to produce quasi-stable reactive oxygen species (ROS) on the surface of NBs to oxidize pollutants and pathogens in water,
(4) ability to improve particle aggregation through intraparticle NB bridging, and
(5) ability to mitigate fouling on surfaces. Reactive oxygen species (ROS) enhances the seed germination and plant growth.
i. The nanobubbles show great potential as ultrasound-mediated drug-delivery vehicles to facilitate drug release and extravascular delivery