Investigation of Quality Briquette Fuel from Brewery Waste Water Sludge and Spent Grains
| dc.contributor.advisor | Berhanu, Assefa (PhD) | |
| dc.contributor.author | Bontu, Teshome | |
| dc.date.accessioned | 2021-10-29T07:35:09Z | |
| dc.date.accessioned | 2023-11-10T15:01:13Z | |
| dc.date.available | 2021-10-29T07:35:09Z | |
| dc.date.available | 2023-11-10T15:01:13Z | |
| dc.date.issued | 2021-09 | |
| dc.description.abstract | Brewery wastes such as spent grain and brewery wastewater sludge are abundant brewing byproducts and have energy potential due to their high carbon contents. The objective of this study was to produce and evaluate solid fuel/briquette fuel from spent grains and brewery wastewater sludge using molasses as a binder. The carbonization process parameters were temperature (350℃, 400℃, and 450℃), time (60 min, 90 min, 120 min), and mixing ratio of BSG to BWWS (25%, 50%, and 75%). These process parameters which affect the process response (Calorific value) were optimized using Central Composite Design (CCD) of Response surface methodology (RSM). In this study, physicochemical characterizations of BSG, BWWS, Sawdust, carbonized mixed samples, carbonized mixed briquette, the non-carbonized mixed briquette was conducted, and then the results were compared with Sawdust briquette. The results of the proximate and ultimate analysis indicated that the potential use of the BSG and BWWS as a replacement for household energy use. The optimal conditions of the carbonization process were temperature at 350 ℃, time at 60 min, and mixing ratio of 75%BSG to 25%BWWS with a calorific value of 4761.10 Cal/g. The carbonized mixed samples were densified using 20% molasses for suitable handling, transporting, and enhancing the calorific value. The calorific value increased to 5385.72 Cal/g due to the addition of binder for briquetting process. The experimental work indicated that the BSG and BWWS can be used as good resource in the manufacturing of quality briquette fuel. In addition, the carbonization process and application of binder increases the energy density of the briquette. The produced briquette can be excellent household fuel alternative source. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/28401 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Briquetting | en_US |
| dc.subject | Brewery wastewater sludge | en_US |
| dc.subject | Calorific Value | en_US |
| dc.subject | Carbonization | en_US |
| dc.subject | Sawdust | en_US |
| dc.title | Investigation of Quality Briquette Fuel from Brewery Waste Water Sludge and Spent Grains | en_US |
| dc.type | Thesis | en_US |