Syrup Clarification Using Flotation System with Optimized Dosages of Phosphate and Cationic Flocculant
| dc.contributor.advisor | Adamu, Zegeye (Ass. Prof.) | |
| dc.contributor.author | Kuma, Nacho | |
| dc.date.accessioned | 2018-09-21T06:23:55Z | |
| dc.date.accessioned | 2023-11-28T13:30:27Z | |
| dc.date.available | 2018-09-21T06:23:55Z | |
| dc.date.available | 2023-11-28T13:30:27Z | |
| dc.date.issued | 2018-05 | |
| dc.description.abstract | Syrup is a clarified juice evaporated to approximately 65% dry solids in a stepwise evaporation process. This concentrated syrup is needed to clarify further before the final fractionation. All Ethiopian sugar factories are designed for the production of plantation white sugar (PWS) by double sulphitation system which is the main source of an increased residual sulphur dioxide in the final product. There is a significant interest in many sugar producing countries towards producing a higher quality plantation white sugar with lower color and lower residual sulphur dioxide content. A sugar with a lower color and lower residual sulphur dioxide values is achieved by replacing the syrup sulfitation process with syrup phosphatation and flocculation. The study was conducted to optimize the syrup clarification as the result of the effect of Talodura and Phosphate on reducing color, turbidity and viscosity using flotation system and there by modifying or reducing the sulfate content in the sugar. This increased sulfate is due to syrup double salfitation during syrup clarification at Wonji Sugar Factory. Since degree of clarification is dependent on the dose of Phosphate and Talodura flocculant, optimization of the doses was carried out against color, turbidity and reduction of viscosity. Design Expert 7 and JMP13 software were used to determine the common optimum doses. The range of levels of the P 2 O 5 used was 117.8 - 680 mg/L, and that of the Talodura was 7.2 - 12.8 mg/L. The optimum levels, 668 mg/L of P 2 O 5 and 12 mg/L of Talodura gave color and turbidity values of 9772 and 4669 ICUMSA respectively and a viscosity reduction of 39 %. Practicing the above optimum conditions at Wonji Sugar Factory could increase productivity and sugar quality. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/12035 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | AAU | en_US |
| dc.subject | Color | en_US |
| dc.subject | Phosphate | en_US |
| dc.subject | Syrup clarification | en_US |
| dc.subject | Talodura | en_US |
| dc.subject | Turbidity | en_US |
| dc.subject | Viscosity | en_US |
| dc.title | Syrup Clarification Using Flotation System with Optimized Dosages of Phosphate and Cationic Flocculant | en_US |
| dc.type | Thesis | en_US |