Research

Research interest

• Colloid and colloid-facilitated contaminant transport.

• Transport and retention of engineered nanoparticles in porous media.

• Biochar applications in agriculture and wastewater treatment.

• Fate of microplastics in aquatic and terrestrial ecosystems.

• Transport and leakage of CO2 gas through heterogeneous subsurface system.

• Flowing fluid electric conductivity logging of deep borehole.

• Long-term impact on groundwater quantity and quality after Artificial Storage Recovery (ASR).

Sponsered projects

• Aquifer characterization, artificial recharge and reuse of suddenly available water in South Bihar, Australian Council for International Agriculture Research, 2019-2021

• Unnat Bharat Abhiyan, Ministry of Human Resources Development, Government of India, 2018-2019

• Linnaeus-Palme exchange programme, international programme of higher education Sweden, 2012-2014

• Transport and remobilization of multi-walled carbon nanotubes in porous media during dynamic saturation change, Travel Grant for EGU, FORMAS, 2012

• Gas transport mechanisms in porous media, Villum Kann Rasmussen Foundation scholarship, Denmark, 2008-2010

• Transport of colloids in soils studied by geocentrifuge techniques, U.S. Geological Survey and National Institutes for Water Resources, 2006-2007

• Studying colloid transport in porous media with geocentrifuges, The Inland Northwest Research Alliance, USA, 2004-2006

Student supervision

• Kanda Ganesh (M.Sc) 2022. Selection of water Bodies for effective natural recharge in Nalanda district of Bihar: A geospatial approach. Nalanda University (main supervisor). 

• Shitanshu Kumar Jha (M.Sc) 2022. Remediation of methylene blue dye using sludge based activated magnetic biochar. Nalanda University (main supervisor). 

• Rama Sinha (M.Sc) 2021.Removal of Chromium (VI) from contaminated water using activated magnetic biochar from rice husk. Nalanda University (main supervisor). 

• Abhilasha (M.Sc) 2021. Lead (II) removal using activated biochar derived from Syzygium cumini (L.) stem: adsorption equilibrium, kinetics and thermodynamics analysis. Nalanda University (main supervisor).

• Rakesh Kumar (PhD). 2020-2023. Remediation of fluoride from contaminated soil and water using modified biochar, Nalanda University (Main supervisor).

• Bipul Kumar (M.Sc) 2020. Risk associated with groundwater recharge in the subsurface system. Nalanda University (main supervisor).

• Satiprasad Sahoo (Post Doc), 2010-2021. Aquifer storage and recovery through suddenly available water in South Bihar. Nalanda University (Main supervisor).

• Poornima Verma (Post Doc), 2019-2021. Aquifer storage and recovery through suddenly available water in South Bihar. Nalanda University (Main supervisor).

• Kumar Ashutosh (Junior Research Fellow), 2019-2021. Aquifer storage and recovery through suddenly available water in South Bihar. Nalanda University (Main supervisor).

• Anurag Verma (Junior Research Fellow), 2019-2020. Aquifer storage and recovery through suddenly available water in South Bihar. Nalanda University (Main supervisor).

• Deepa Kundu (M.Sc), 2019.  Characterization and interaction of biochar prepared from Lantana Camara L. with methylene blue dye in aqueous solutions, Nalanda University. (main supervisor)

• Rakesh Kumar (M.Sc), 2019.  Fluoride removal using activated alumina: Adsorption isotherms and kinetics, Nalanda University. (main supervisor)

• Rashmi Singh (M.Sc), 2019.  Extraction and characterization of microplastic from soil sediments of river Ganga in the environs of Patna, Bihar, Nalanda University. (main supervisor)

• Richa Kumari (M.Sc), 2019.  An assessment of public behaviour and awareness towards E-waste in Ranchi City, Nalanda University. (main supervisor)

• Ritesh Kumar (M.Sc), 2019.  Groundwater quality mapping using Geo-spatial technique of Sheikhpura district, Nalanda University. (Co-supervisor)

• Himadri Haldar (M.Sc), 2018. Dissolved nutrients in high altitude lakes in Kanchendzonga National Park, Nalanda University. (main supervisor)

• Gaurav Kumar (M.Sc), 2018. Carbon assimilation by Hippophae rhamnoides and its impacts on soil primary nutrients (NPK and C) in high altitude cold desert ecosystem of Leh, Ladakh, Nalanda University. (main supervisor)

• Harsh Yadava (M.Sc), 2018. Socio-cultural impediments to make Rajgir open defecation free, Nalanda University. (main supervisor)

• Preeti Kumari (M.Sc), 2018. Impacts of rural electrification through the grid and off-grid electrification system, Nalanda University. (main supervisor)

• Ritu Sharma (M.Sc), 2018.  Impacts of pesticide on health and environment: A case study from Kurukshetra, Haryana, Nalanda University. (main supervisor)

• Abinash Mohanty (M.Sc), 2017. Design of filter system using nanotechnology-based AMF mechanism for fluoride and boron contamination in water, Nalanda University. (main supervisor)

• Anurag Verma (M.Sc), 2017. Flowing fluid electric conductivity logging for detail hydrogeological information of shallow aquifer, Nalanda University. (main supervisor)

• Nabprabhat Paul (M.Sc), 2017. Monthly groundwater table fluctuation of Rajgir, Nalanda University. (main supervisor)

• Oindrila Ghosh (M.Sc), 2017. Transport of Biochar in saturated porous medium under various physical and chemical conditions, Nalanda University. (main supervisor)

• Jyothirmayee Kandula (M.Sc), 2016. Estimation of soil erosion properties of Rajgir hill for appropriate soil and water management practices, Nalanda University. (main supervisor)

• Arun Gandhi (M.Sc), 2016. Actors in the wheat supply chain for post-harvest losses in East Champaran District, Nalanda University. (main supervisor)

• Ranjit Kumar (M.Sc), 2016. Fluoride and other groundwater quality mapping of Nalanda district, Nalanda University. (co- supervisor)

• Farzad Basirat (PhD), 2011-2017. Transport and leakage of CO2 from heterogeneous subsurface systems, Uppsala University. (main supervisor)

• Amanda Eskebaek (Diploma), 2015. Spridning av slackvattenpartiklar -- En studie pa spridning av partiklar genererade fran brand, Uppsala University. (main supervisor)

• Tsegay Mengestab (M.Sc), 2015. Fate and transport of Nano-TiO2 in unsaturated porous media: Effect of water content and transient flow condition, Uppsala University. (main supervisor)

• Ulrika Iverfelt (M.Sc), 2014. Partikelspridning i mark- och grundvatten vid slackning av brander, Uppsala University. (main supervisor)

• Maryeh Hedayati (M.Sc), 2014. Transport of natural and manufactured carbon-based nanoparticles on transport through saturated porous media, Uppsala University. (main supervisor)

• Albin Nordstrom (M.Sc), 2014. Denitrifying bioreactor in a low temperature environment -Laboratory column studies, Uppsala University. (Reviewer)

• Deeksha Katyal (Post Doc), 2014. Surface water quality and vulnerability assessment using index mapping, Uppsala University. (main supervisor)

• Muhammad Asif (M.Sc), 2013. Climatic change, irrigation water crisis and food security in Pakistan, Uppsala University. (Evaluator)

• Nahal Faramazi (M.Sc), 2012. Agricultural water use in Lake Urmia Basin, Iran: An approach to adaptive policies and transition to sustainable irrigation water use, Uppsala University. (Evaluator)

• Abenezer Mekonen (M.Sc), 2012. Transport and mobilization of multi-walled carbon nanotubes in quartz sands under varying saturation, Uppsala University. (main supervisor)

• Daxio Bao (M.Sc), 2012. Transport of Multi-walled Carbon Nanotubes in the Saturated Porous Media, Uppsala University. (main supervisor)