Heavy Metal Assessment of Kavre Valley Basin River System

  • Siddhartha Shakya Environmental Engineering in Kathmandu University, Nepal with professional goal in wastewater engineering
  • Prekshya Gurung Environmental Engineering, Department of Environmental Science and Engineering of Kathmandu University
  • Anjal Bohaju Environmental Engineering, Department of Environmental Science and Engineering of Kathmandu University
  • Dipson Ojha Environmental Engineering, Department of Environmental Science and Engineering of Kathmandu University
  • Bhim Prasad Kafle Department of Chemistry of Kathmandu University
Keywords: Heavy metal, Spectrophotometry, Kavre valley, Nepal

Abstract

Recent population growth, industrialization and unplanned urbanization have led to an increase in untreated waste disposal directly to the river system, including heavy metals. The present investigation was conducted for assessment of heavy metals in the Kavre valley river basin system. Through this basin, two major rivers Punyamata and Roshi along with their tributaries, flow passing through cities (Banepa, Shree Khandapur and Panauti) and the heavy metals selected were Iron (Fe), Chromium (Cr), Manganese (Mn), Lead (Pb), Zinc (Zn) and Cadmium (Cd). Seven sites were selected on the basis of city size and meeting point of tributaries. Fe, Cr and Mn were examined using UV-spectrophotometry whereas Pb, Zn and Cd were determined using AAS. The highest concentration of Cr, Mn, Fe, Cd, Zn, Pb were determined to be 1.9 μg/L, 22.6 μg/L, 514 μg/L, 340 μg/L, 20 μg/L, 80 μg/L, respectively, with Fe, Cd and Pb exceeding the WHO limits.

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Author Biographies

Siddhartha Shakya, Environmental Engineering in Kathmandu University, Nepal with professional goal in wastewater engineering

B.Tech 

Prekshya Gurung, Environmental Engineering, Department of Environmental Science and Engineering of Kathmandu University

B.Tech

Anjal Bohaju, Environmental Engineering, Department of Environmental Science and Engineering of Kathmandu University

B.Tech

Dipson Ojha, Environmental Engineering, Department of Environmental Science and Engineering of Kathmandu University

B.Tech.

Bhim Prasad Kafle, Department of Chemistry of Kathmandu University

Assistant Professor

Published
2019-04-10
How to Cite
Shakya, S., Gurung, P., Bohaju, A., Ojha, D., & Kafle, B. (2019). Heavy Metal Assessment of Kavre Valley Basin River System. Hydro Nepal: Journal of Water, Energy and Environment, 24, 32-34. https://doi.org/10.3126/hn.v24i0.23581
Section
Articles