PEMANFAATAN LIMBAH TEMPURUNG KEMIRI SUNAN (Aleuriteus trisperma) SEBAGAI BAHAN BAKU PADA PEMBUATAN ARANG AKTIF

Production of Activated Carbon by Activation of Tamarind (Tamarindus Indica) Wood Charcoal

“…The adsorption results of 34.4% of acetic acid solution of 0.5 N at 4 hours and 30 o C. Ironwood as a catalyst begins with size reduction and 100 mesh size sifting, mixing the HCl solution using a reflux system with a temperature of 60 o C for 4 hours, then neutralizing it with water and drying it in an oven [23]. As in [24], corn stem can be made into activated charcoal with optimum operating conditions of activation of corn stem charcoal with a sulfuric acid solution followed by a carbonization process at 300 o C for 1 hour and precursor conditions of 1.25 in optimum adsorption of copper metal ions at pH 5, contact time of 3 hours, and maximum adsorption capacity of 25.1 mg/g. Treatment of Kemiri Sunan shell waste as activated charcoal begins with soaking in 10% H2PO4 solution for 24 hours, then washing and draining.…”

Penentuan Bilangan Penyabunan Pada Limbah Biodiesel Pertamina Di Tarakan

“…Perbedaan nilai penyabunan menentukan perbedaan jumlah KOH yang dibutuhkan untuk menyabunkan 1 gram sampel lipid atau minyak. Perbedaan bilangan penyabunan dapat ditunjukkan pada beberapa penelitian diantaranya hasil penelitian Suryani et al (2016) yakni minyak kacang tanah (Arachis hypogaea) memiliki bilangan penyabunan sebesar 190.67 mg KOH/g, virgin coconut oil memiliki bilangan penyabunan sebesar 255,67 (Karouw et al 2014), biji kemiri sunan memeliki bilangan penyabunan sebesar 101,49 mg KOH/g (Hendra, 2014) dan bilangan penyabunan pada minyak ikan patin (Pangasius pangasius) berkisar antara 91,319-192,656 mg KOH/gr (Panagan et al 2011).…”