| dc.description.abstract | Rice husk ash is the result of burning rice husks which often become waste from the rice milling process. The compound content in rice husks such as SiO2, MgO, SO3, CaO, Na2O and K2O. With a high content of silica compounds, rice husk ash can be used as raw material for making sodium silicate. The need for sodium silicate in Indonesia is quite high, even the fulfillment of sodium silicate consumption in Indonesia is carried out by imports from various countries in the world in large quantities.
The sodium silicate factory from rice husk ash and sodium hydroxide is planned to produce with a production capacity of 10,100 tons/year and operate for 300 days a year. The factory location is planned in Brondong District, Lamongan Regency, East Java Province. The land area required for the factory is 11,792 m2. The workforce required is 140 people in the form of a Limited Liability Company (LLC) with a line and staff organization system.
The results of the pre-design economic analysis of the factory for making sodium silicate from rice husk ash and sodium hydroxide as raw materials are :
1. Capital Investment : IDR 423,644,168,948.346
2. Production Cost (Per Year) : IDR 318,506,418,548.09
3. Profit Margin (PM) : 26.510%
4. Break Even Point (BEP) : 31.409%.
5. Return On Invesment (ROI) : 19.102%
6. Pay Out Time (POT) : 5.2 year
7. Return On Network (RON) : 38.204%
8. Internal Rate of Return (IRR) : 22%
From the results of the economic analysis, it can be concluded that the preliminary plant design of making sodium silicate from rice husk ash and sodium hydroxide as raw materials is feasible to be established | en_US |
