EFEKTIVITAS PEMURNIAN MINYAK GORENG BEKAS DENGAN ADSORBEN ARANG AKTIF DARI KULIT SINGKONG

Abstrak

With the development of technology and the abundance of natural resources that are not fully utilized, it isnecessary to develop natural resources that are less useful to have high economic value. Related to this, one of the naturalresources that can be utilized is cassava peel. This study aims to determine the effectiveness of cassava peel activatedcharcoal as an adsorbent in refining used cooking oil. This research method includes making activated charcoal fromcassava peel with carbonation at a temperature of 400 0C and 15 minutes, chemical activation with phosphoric acid for24 hours, physical activation for 3 hours, after that analysis of the quality of activated charcoal of cassava peel includesmoisture content, ash content, volatile metter and absorbency to iodine, purification of used cooking oil, analysis of thequality of cooking oil purified by analyzing acid numbers and peroxide numbers. The results showed that the bestperoxide number analysis was at 6 grams of activated charcoal with an interaction temperature of 100 ie 7.41 meq O2 /kg which had met the SNI 3741: 2013 standard. While the optimum condition of acid number analysis was obtained inthe conditions of cooking oil adsorption on charcoal mass 4 grams and a temperature of 120 which is 0.41 mg NaOH /gr.