Determination of Coal Rank and Operational Efficiency through Blending Techniques in the ET-Coal Washing Plant in Dawuro, Ethiopia
| dc.contributor.advisor | Bisrat Kebede (PhD | |
| dc.contributor.advisor | Bekele Ayele (PhD) Co-Advisor | |
| dc.contributor.author | Berhanu Abate | |
| dc.date.accessioned | 2025-06-25T10:41:24Z | |
| dc.date.available | 2025-06-25T10:41:24Z | |
| dc.date.issued | 2025-03 | |
| dc.description.abstract | The study investigates the impact of blending and subsequent washing and flotation processes on coal quality. Four raw coal samples sourced from different seams were blended to create a uni-form feed before undergoing flotation. The study provides laboratory results of coal samples be-fore and after blending, washed by ET- Washing plant, and flotation treatments, highlighting significant improvements in key quality parameters, such as calorific value, ash content, sulfur levels, moisture content, and volatile matter. The flotation process, in particular, demonstrated considerable advantages in reducing ash and moisture content while increasing calorific value, making the coal more suitable for energy production. However, challenges related to sulfur con-tent and volatile matter remain. Additionally, environmental concerns such as water contamina-tion, air pollution, and solid waste management were addressed, with recommendations for the implementation of flotation circuits, desulfurization, and efficient waste management practices to minimize environmental impact. Economic analysis of the plant’s operation, including capital and operating costs, demonstrated that while the current process is cost-effective, the addition of flotation could enhance coal recovery and overall revenue. The study concludes that flotation provides the most significant improvements in coal quality and efficiency, making it a viable op-tion for enhancing the plant’s overall operational and economic performance. | |
| dc.identifier.uri | https://etd.aau.edu.et/handle/123456789/5634 | |
| dc.language.iso | en_US | |
| dc.publisher | Addis Ababa University | |
| dc.subject | Blending | |
| dc.subject | processing | |
| dc.subject | Laboratory Analysis | |
| dc.subject | Recovery | |
| dc.subject | Grade. | |
| dc.title | Determination of Coal Rank and Operational Efficiency through Blending Techniques in the ET-Coal Washing Plant in Dawuro, Ethiopia | |
| dc.type | Thesis |