MIT-World Peace University (MIT-WPU) is a top educational institute located in Pune, India. It is recognized within&nbsp;UGC under Government of Maharashtra Act No. XXXV 2017.&nbsp;

It is part of the MIT group of institutions (established in 1983) which covers 10+ campuses across India and has more than 50,000+ students enrolled across various disciplines at a given point of time. The institute houses 15 schools ranging from Engineering &amp; Technology, Design, Pharmacy, Commerce, Governance among others. It offers undergraduate, postgraduate and PhD programs among different disciplines.&nbsp;

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MIT World Peace University

Bioremediation of petroleum hydrocarbon contaminated soil is studied using the slurry bioreactor. This method overcomes the limitations of the mass transfer rates and thereby improves the extent of degradation as compared to the conventional bioremediation techniques. Soil from crude oil producing well site was used for the study. Three different microorganisms were isolated and their bio-surfactant producing capacity was studied. The three best organisms were used for bioremediation using slurry bioreactor. The reduction in the Total Petroleum Hydrocarbon (TPH) for different microorganisms was studied over the period of 72 hours. The variation in other parameters such as Dissolved Oxygen (DO), pH and Colony Forming Units (CFU/mL) was studied. The criterion for selection of microorganism suitable for the bioremediation process using slurry reactor is proposed. The current work highlights the importance of the treatability studies in the bioremediation of contaminated soil for large scale applications of slurry reactor technology.

School of Chemical Engineering

Engineering and Technology

Ecology, Environment and Conservation

Treatability study of slurry bioreactor technology for bioremediation of petroleum contaminated soil

Hydrodynamic cavitation offers distinct advantages for water disinfection and waste watei treatment particularly at large scales of operations. For applying hydrodynamic cavitation foi water disinfection/treatment, water stream to be treated is passed through a fluidic device ir which there exists a low pressure region. Cavities are generated in this region when the pressurt falls below vapour pressure (in absence of any dissolved gases). These cavities are then collapsec when they travel to regions of higher pressure and lead to very high shear, temperatures anc pressures in localized regions. These high pressure/temperature as well as high shear facilitati disinfection as well as reduction in chemical oxygen demand, colour and amonical nitrogen in the water. In this work, we have investigated hydrodynamic cavitation generated by five difieren orifices have been studied which have different shapes with same fractional open area and have tested their effectiveness for water disinfection. The efficacy of generated cavitation on wate disinfection was quantified based on measurements of non-pathogenic E. coli colony forminj units (CFU/mL). The presented results and analysis will be useful for designing hydrodynamii cavitation based systems for water disinfection.

World University root node

Pollution Research

Effect of Orifice Shape on Water Disinfection Efficacy

Hydrodynamic cavitation offers distinct advantages for water disinfection and wastewater treatment particularly at large scales of operations. Vortex Diode is a fluidic device, which is conventionally used as a leaky non-return valve in nuclear industry. Recently this device was shown to be effective hydrodynamic cavitation device. In the present study, we have investigated use of cavitation in vortex diode for water disinfection application. Escherichia coli contaminated water is treated successfully using vortex diode. The operating parameters desirable for the disinfection are investigated. The performance is evaluated based on the reduction in the colony forming unit (CFU/mL) of E. coli count estimated by standard spread plate method. The presented results will be useful for identifying appropriate operating conditions for using vortex diode to effectively reduce the bacterial load and disinfect water.