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N. N. W. Triana
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Vacum Evaporator Application in Drinking Red Ginger Instant Using Rotary Crystalizer Siswanto; N. N. W. Triana
Nusantara Science and Technology Proceedings International Seminar of Research Month Science and Technology for People Empowerment.
Publisher : Future Science

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The process of evaporating red ginger extract using vacuum evaporator if the barometric condenser requires a large enough energy, to save energy, it is necessary to design a vacuum evaporator that can lower the boiling point of water and also energy-efficient by using vacuum pumps equipped condensate container. This type of vacuum pump uses a small energy when compared to using a steam jet ejector and is expected to use vacuum evaporator with this vacuum pump will be able to save electricity. Evaporator using vacuum pump with a level of vacuum reaches 0.5 atm or 360 mm Hg can lower the temperature of water evaporation to 800C so it is expected that the content in the red ginger is not much changed. The evaporation of red ginger extract to continue to become crystal used a rotary crystallizer equipped with a heater. Heating is kept at 100 ° C with a spin of 75 rpm and crystals are formed with a relatively quick 20 minutes time when compare with using stirred crystallization.
Implementation of Freundlich Equation Absorption of Calcium and Magnesium Ions on Saturated Salt Solution C. Pujiastuti; K. Sumada; Y. Ngatilah; D. I. Putri; N. N. W. Triana
Nusantara Science and Technology Proceedings International Seminar of Research Month Science and Technology for People Empowerment.
Publisher : Future Science

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Traditional salt contains NaCl between 80-92% and the other is impurity such as magnesium (Mg), calcium (Ca), potassium (K) and sulfate (SO4) ions., The NaCl content of salt is under government regulations, namely NaCl 94.7% for consumption salt and NaCl above 98% for industrial salt. Improved salt quality is done through increasing NaCl concentration or decreasing concentration of impurities. In this research, salt quality improvement was carried out by reducing the concentration of impurities through ion exchange methods. The ion exchange method is carried out by using 2 (two) types of resin namely cationic resin and anion. Cationic resin serves to exchange positively charged ions such as Mg2+, Ca2+ and K+ ion and anionic resin for negatively charged ions such as SO42-. The purpose of this study is to obtain Freundlich mathematical equations which can be used to calculate resin requirements. The study was conducted using a stirred tank with a variable amount of cationic resin from 25-150 grams per 1 liter of saturated salt solution and stirring time of 5 - 30 minutes. The saturated salt solution used contains 28.4% NaCl, 0.4% calcium and 0.09% magnesium. The results obtained were 36.99% NaCl, 0.025% Calcium and 0.044% Magnesium, 25 minutes contact time, 100 grams cation resin Freundlich equation obtained Calcium ion: ln (x / m) = 1.087 ln C - 4.2282, R2 = 0. 9544, Magnesium Ion: ln (x / m) = 5.6278
Co-Authors C. Pujiastuti D. I. Putri K. Sumada Siswanto Y. Ngatilah