Akshay P. currently serves as a Junior Research Fellow at Sanitation Biotechnology Lab, School of Biotechnology, Amrita Vishwa Vidyapeetham. He received his B.Tech degree in Mechanical Engineering from Amrita Vishwa Vidyapeetham in 2018.

Alma Mater

  • B.Tech in Mechanical Engineering, Amrita School of Engineering (2018)


  • Awarded with a junior research fellowship from Amrita Vishwa Vidyapeetham.

Research Experience

  • Portable and Efficient Graphene Oxide Based Multistage Filtration Unit for Water Purification (2018)
    A six months Bachelor’s thesis work focused on designing and manufacturing a portable multistage water filter that is both efficient and potable for a consumer to drink. The use of graphene oxide coated sand filter in the filtration unit was inferred as the main fundamentals in efficiency to match the standards.
  • Six-month internship at AMMACHI Labs Research Center under Mr. Harish Mohan, Environmental and Industries Engineer on Wastewater Treatment Projects (2019)
    The internship mainly focused on the biological way of treating wastewater. Treatment and the testing of water samples were completed from Amrita School of Biotechnology with the guidance of Dr. Sanjay Pal, P.I. Sanitation Biotechnology Lab. 

Ongoing Research Project

  • Wastewater Treatment through Vertical Garden System (Biological Treatment)
    Designing and executing vertical garden unit for biological treatment of wastewater in small scale (22L) and large household system (400L) for TBI-Prayas grant. Throughout this work, gaining exposure to basic microbiological techniques for checking fecal coliform counts and studying the physico-chemical characteristics of water.


Publication Type: Journal Article

Year of Publication Title


Akshay P., S., S., Rajesh, R., and Geena Prasad, “Portable and efficient graphene-oxide based multistage filtration unit for water purification”, Materials Today: Proceedings, 10th International Conference on Materials Manufacturing and Characterization, Mathura, Uttar Pradesh, India, vol. 26, pp. 2344 - 2350, 2020.[Abstract]

In recent times, ensuring availability of adequate supply of potable water for its citizens is of great concern for nations across the globe. Water purification is a matter of high immediacy in developing countries, where enough supply of clean drinking water is unavailable. Globally, in consideration of the water-related diseases, assurance of an affordable, scalable water treatment infrastructure is of paramount significance. Many states in India face are confronted by scarcity of safe water and pollution, evoked mainly by anthropogenic activities. Majority of the population is unable to either access or afford safe drinking water. More than 60% of this population rely on groundwater for the purpose of drinking alone and on surface waters for all other purposes. In this era of high-water necessity, the aim of this paper is to develop a handy personal, water purifier, which is a ubiquitous, cost-effective access to healthy potable water for humans. This portable water purifier is a multi-stage filter constituted of a fabric filter, graphene-oxide coated sand filter, vetiver grass filter, and a UV filtration system. Water quality test show drastic reductions in the total dissolved solids (TDS), hardness, chloride and calcium ions. Implementation of this filtration unit in water-stressed countries is expected to serve as an efficient and affordable appliance for daily consumption of water.

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