Pemurnian Minyak Jelantah Dengan Menggunakan Adsorben Karbon Aktif Dari Ampas Sagu (Metroxylon Sp.)

Jessica Anastasia, Frans A. Asmuruf, Supeno Supeno

Abstract


Cooking Oil waste was purified by adsorption method. The adsorbent used was an activated carbon made from sago waste. Dried sago waste was carbonized and activated with ZnCl2 15 % (as activated carbon 1) and then modified with HNO3 30 % (as activated carbon 2) where these two activated carbons were used to purify used cooking oil. Surface Area Analyzer results show that activated carbon 1 and activated carbon 2 have a surface area (3,79841 and 6,71241) m2/g, pore volume (0,00786731 and 0,0102509) cm3/g and a radius of pores (1.89886 and 1,519) nm. The results of the quality test (water and ash content) of the two types of activated carbon showed that the test parameters had met the Indonesian National Standard 06-3730-1995 except that the volatile matter content was still two times higher than SNI. With the ratio (10 g of activated carbon and 100 g of used cooking oil), the adsorption performance of the two activated carbons in improving the quality of used cooking oil was found that activated carbon 1 could reduce 50,8 % of free fatty acids and 70,6 % of peroxide value. While activated carbon 2 can reduce 58,7 % of free fatty acids and 82,1 % of peroxide value. Activated carbon 2 can improve the quality of used cooking oil because it has a larger surface area than activated carbon 1. So activated carbon from sago waste have the potential to be use as an adsorbent in improving the quality of used cooking oil.

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References


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DOI: https://doi.org/10.31957/avg.v6i1.2451

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