Niroj Aryal

Associate Professor - CAES

Niroj Aryal
College of Ag & Environ Sciences

Natural Resources & Environ Design

Sockwell Hall 120
Ph.D.Biosystems Engineering / Michigan State University
Ph.D.Environmental Engineering / Michigan State University
M.S.Biosystems Engineering / Michigan State University
B.S.Agricultural Engineering / Tribhuvan University


Dr. Aryal has a bachelor's in agricultural engineering from Tribhuvan University in Nepal, a post graduate diploma in environmental education and sustainable development from Kathmandu University in Nepal, a master’s in biosystems engineering from Michigan State University and a doctorate in biosystems engineering and environmental engineering from Michigan State. After earning his doctorate in 2015, he worked as a post-doctoral researcher in hydrology and water quality at the USDA's Delta Water Management Research Unit. He has published several research papers in reputable journals and presented at the national and international conferences.

Research Interests

Water quality and hydrology, phytoremediation, watershed management, emerging pollutants, agricultural conservation practices, stormwater management, BMPs, ecological engineering, classroom instructional techniques, engineering education

Recent Publications

  • Jonae Wood, Niroj Aryal, Kiran Subedi (2023). (Wastewater treatment using plants- processes). (21) 15, Water.
  • Arjun Kafle, Anil Timilsina, Asmita Gautam, Kaushik Adhikari, Anukul Bhattarai, Niroj Aryal (2022). (Phytoremediation: mechanisms, plant selection and enhancement by natural and synthetic agents). (100203) 8, Environmental Advances.
  • Zepei Tang, Jonae Wood, Dominae Smith, Arjun Thapa, Niroj Aryal (2021). (A review on constructed treatment wetlands for removal of pollutants in the agricultural runoff). (13578) 13, Sustainability.
  • Emma Martin, Ian Goodwin, Rebecca Cooper, Niroj Aryal, Michele Reba, Jenifer Bouldin (2020). (Assessing mitigative properties of vegetation in Northeast Arkansas Agricultural Ditches on sediment and nutrient loads). (107613) 320, Agriculture, Ecosystems and Environment.
  • Claire Baffaut, Sapana Lohani, Allen Thompson, A Davis, Niro (2020). (Evaluation of the Soil Vulnerability Index for artificially Drained cropland across Eight Conservation Effects Assessment Project Watersheds). (1) 75, pp. 28-41. Soil and Water Conservation.
  • Niroj Aryal, Jonae Wood, Ishara Rijal, Dongyang Deng, Manoj Jha, Andrea Ofori-Boadu (2020). (Fate of environmental pollutants: A review). Water Environment Research.
  • Michele Reba, Niroj Aryal, Tina Teague, Joseph Massey (2020). (Initial findings from a statewide network for monitoring agricultural water quality and water quantity at the edge-of-field in Arkansas). (3) 75, pp. 291-303. Soil and Water Conservation.
  • Sapana Lohani, Claire Baffaut, Allen Thompson, Niroj Aryal et al. (2020). (Performance of the Soil Vulnerability Index with respect to slope, digital elevation model resolution, and hydrologic soil group). (1) 75, pp. 12-27. Soil and Water Conservation.
  • Dongyang Deng, Mehdi Lamssali, Niroj Aryal, Andrea Ofori-Boadu, Manoj Jha, Raymond Samuel (2020). (Textiles Wastewater Treatment Technology: A Review). In Jason He, pp. 15. Water Environment Research.
  • Niroj Aryal, Dongyang Deng, Manoj Jha, Andrea Ofori-Boadu (2019). (Monitoring, sampling, and automated analysis). (10) 91, pp. 1288-1293. Water Environment Research.
  • Niroj Aryal, ML Reba, N Straitt, TG Teague, J Bouldin, S Dabney (2018). (Impact of cover crop and season on nutrients and sediment in runoff water measured at the edge of fields in the Mississippi Delta of Arkansas). (1) 73, pp. 24--34. Journal of Soil and Water Conservation.
  • Dongyang Deng, Niroj Aryal, Andrea Ofori-Boadu, Manoj Jha (2018). (Textiles Wastewater Treatment). (10) 90, pp. 1648-1662. Water Environment Research.