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Research of Sugar Cane Juice Clarification Enhanced by Ultrasound

Author: LuZuoLun
Tutor: HuangYongChun
School: Guangxi University of Technology
Course: Biochemical Engineering
Keywords: Ultrasonic wave Sugar cane juice Adsorption clarification Adsorption kinetics Adsorption isotherm
CLC: TS244.2
Type: Master's thesis
Year: 2010
Downloads: 72
Quote: 0
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Abstract


Clarification of cane juice is high processing costs in the sugar mills in the production process , technical difficulties in the process . Most of the domestic sugar the sulfite method to clarify the process . The sulfite method clarification is through adding lime and sulfite in the sugarcane juice sulfitation neutralization reaction to produce calcium sulfite , and the adsorption of the non- sugars of the juice in the dye , colloids, etc. , to achieve a method of clarifying effect . Sulfite method to clarify a typical adsorption process , this study ultrasound on the calcium sulfite adsorption to clarify the role of impact , in order to find ways to improve cane juice clarification effects , main contents : ( 1 ) study the role of ultrasound , ultrasonic power of ultrasound time sugarcane juice color value . The results showed that the best way of ultrasound and juice by adding PAM after the optimum power is 260 W , and the optimum time was 30s , and subjected to ultrasonic treatment under this condition the decolorization of sugar cane juice was 59.1% , significantly higher than the blank experiment sugarcane juice decolorization rate of 45.7% . ( 2 ) study the ultrasonic mode of action of the ultrasonic power , ultrasonic time of the colloid content of the sugar cane juice . The results showed that the best way of ultrasound and juice by adding PAM after the optimum power was 195 W , and the optimum time was 30s , and removal rate of 17.51% was subjected to ultrasonic treatment under this condition the colloidal content of the sugar cane juice , colloid content was significantly higher than that of the blank experiment sugarcane juice the removal rate of 10.55% . ( 3 ) study the ultrasonic mode of action of the ultrasonic power , ultrasonic time of the sugar cane juice Jane purity . The results showed that the best way of ultrasound and juice by adding PAM after the optimum power was 260 W, the optimum time for 90s , and subjected to ultrasonic treatment under this condition sugarcane juice Jane purity increased rate of 2.13% , significantly the simple purity higher than the blank experiment sugarcane juice to improve rate of 1.34% . (4) ultrasonic promote adsorption kinetics and adsorption isotherm . Ultrasound to promote the the calcium sulfite adsorption kinetic equation and adsorption isotherm equation . The results show that , in the role of ultrasound , the main factor is the of calcium sulfite adsorption process particle diffusion . Three experimental set temperature , adsorption isotherms are better able to meet the Freundlich equation.

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