Evaluation And Optimization Of Process Conditions For Lime Saccharate Clarification In The Manufacture Of Plantation White Sugarthe Case Of Metahara Sugar Factory

Food Engineering Project Topics

Get the Complete Project Materials Now! »

This paper analyses the possibility to adopt lime saccharate clarification inrnMetahara Sugar Factory and also tries to find optimum process conditions forrnbetter juice purification. Mixed juice samples of 5 l each were taken fromrnweighed mixed juice pumps’ return line and pretreated so as to be used forrnsettling test. To get the targeted P2O5 content in juice, calculated amount ofrnphosphoric acid was added to the sample and subjected to heating torn750C.Then, the pH was raised to the pH of 8.5-9.5 by the addition of lime orrnlime saccharate, heated to the boiling point. The prepared sample was takenrnand poured in to the 1000 ml graduated cylinder containing flocculantrn(separan).The required parameters were determined from the clarified juicernsample. The data obtained from the comparative experiments were subjected tornstatistical analysis using design expert software whereby the significance wasrnset at 5% level. The result of the experiment has shown that mixed juicernsample from different combinations of cane varieties did not show anyrnsignificant variation in quality parameters at 5% significance level. At P2O5rncontent of 300ppm and separan concentration of 3ppm, the upper limit of thernpreliming pH of 9.5 gave better results for lime saccharate such as purity ofrn84.7%, CaO of 936ppm, and turbidity of 477TU. But, when the P2O5 contentrnwas increased to 350ppm, at separan concentration at 3 ppm, the mid value,rnpH of 9, gave better results i.e, purity of 84.8%, turbidity of 163 Tu, settlingrnrate of 10 cm/min, reducing content of 0.52%. On the other hand, when thernP2O5 content was raised to 350 ppm with a separan concentration lowered torn1ppm, the lower limit value of PH=8.5 gave better values. Furthermore,rnanalysis of data of both treatments using the design expert software has provedrnto be significant for all the parameters except that of CaO. The analysis hadrnalso shown that the optimum process parameters of clarification were identifiedrnto be pH=8.87, P2O5=321.15 and separan concentration of 3 ppm, which gavernacceptable values of the response variables considered. Using the optimum pH,rnevaluation of the chemical consumption revealed that there is about 71%rnreduction in lime consumption which can be taken as a positive outcome tornbring cost reduction and increased profitability to Metahara Sugar Factory inrnparticular and all other sugar factories in general.rnKey words:Sugar,Clarification,Lime saccharate,Optimization.

Get Full Work

Report copyright infringement or plagiarism

Be the First to Share On Social



1GB data
1GB data

RELATED TOPICS

1GB data
1GB data
Evaluation And Optimization Of Process Conditions For Lime Saccharate Clarification In The Manufacture Of Plantation White Sugarthe Case Of Metahara Sugar Factory

146