Paper
Mineral Analysis and Erosion Potential of Sediment Samples from Nepalese Hydro Power Plant
- Authors:
- Anil Kumar Bastola; Hari Prasad Neopane
- Abstract
- In Nepalese hydropower plant, sediment erosion is a major technical problem as large amount of sediment flows through the Himalayan Rivers. Most of the hydropower plants are affected by the sediment erosion problem. This erosion mainly depends on sediment characteristics like size, concentration, mineral composition and shape of the sediments. This paper focuses on variation of particle size distribution, mineral composition and erosion potential of sediment samples from lower Marsyangdi hydropower plant of Nepal. Sediment samples were collected and analyzed from three different locations: headwork, intake and tailrace. Mineral analyses were carried out by physical method called particle count method in Stereo Zoom Microscope and revealed that quartz is the most abundant mineral and common particle size distribution of sediment varies at different locations of plant. Furthermore, erosion tests were also carried out in rotating disc apparatus (RDA) and found that erosion rate is directly proportional to the sediment size and quartz content.
- Keywords
- Sediment; Particle size distribution; Mineral; Particle count method; Stereo zoom microscope; Erosion rate
- StartPage
- 50
- EndPage
- 55
- Doi