The students of the Faculty of engineering, Department of chemical engineering, Khon Kaen University to participate in the annual summer intern study the total agro-industrial company limited 2557 (2014) (plant, mitr Phu khiao) Location 99 Moo 10, CHUM phae, Phu khiao road, Tambon khok Phu khiao district, Khon Kaen province 36110 cleaning as a business group producing sugar in the country, Thailand. Period June 1 – July 17, 2015 and job training assignments, is analyzing the concentration of lime juice, because the concentration of lime juice is not specified is less than 10 BOME, based on factors that may affect the concentration of lime and water.That is taken into consideration is the quality of the lime chunks and Quantitation of impurities in lime CaO and% lump that in experiments, it was found that the quantity% CaO CaO passed the benchmark% no less than 90%, and other things found in the trial after filtering impurities such as stones are pebbles.Other non-soluble and found that each of the experiment are what come across different contamination that affects the quantity of impurities concentrations of lime juice. That is, if a lot of impurities concentration of lime is low (compare by weight), and conversely, if the quantity is less concentration of water impurities lime would be high.คำสำคัญ : น้ำตาล ปูนขาว ความเข้มข้นของน้ำปูนขาว สิ่งเจือปน
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