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All Journal Jurnal Teknik Kimia USU
M. Yusuf Ritonga
Departemen Teknik Kimia, Fakultas Teknik, Universitas Sumatera Utara
Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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PEMBUATAN BIODIESEL DARI RBDPO DENGAN KATALIS CANGKANG KEPAH M. Yusuf Ritonga; Anda Putra
Jurnal Teknik Kimia USU Vol. 4 No. 2 (2015): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (394.089 KB) | DOI: 10.32734/jtk.v4i2.1466

Abstract

Biodiesel is a low-emission diesel fuel substitute made from renewable resources and waste oil. The objective of the study was to study of CaO catalysts in biodiesel production from RBDPO with clam shell catalyst through calcinations of CaCO3 with temperature of 900oC and 3.5 hours will be obtained CaO content of 68,35%. Effect of various process variables such as type of catalyst, reaction time, amount of catalyst and molar ratio of Methanol / oil were investigated. The biodiesel properties like methyl ester content, density, viscosity, and flash point was compared with Indonesian Standard (SNI). Under the best condition, the maximum yield, purity, density, viscosity and flash point of biodiesel RBDPO respectively for 84,0179%, 97,98%, 875,47 kg/m3, 4,99 cSt and 122oC was obtained by using 12:1 molar ratio of methanol to RBDPO oil at 60oC, for a reaction time of 2 hours in the presence 5 wt% of CaO catalyst. The results of this research showed that heterogeneous catalysts CaO derived from clam shell suitable to be used as catalysts in biodiesel production.
APLIKASI ELEKTROKOAGULASI DALAM PENGOLAHAN LIMBAH CAIR PABRIK KELAPA SAWIT Farida Hanum; Rondang Tambun; M. Yusuf Ritonga; William Wardhana Kasim
Jurnal Teknik Kimia USU Vol. 4 No. 4 (2015): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (241.885 KB) | DOI: 10.32734/jtk.v4i4.1508

Abstract

The production of crude palm oil (CPO) in Indonesia is keep increasing that make the amount of wastewater generated. Technology of anaerobic fixed bed (RANUT) have been developed, but the characteristic of the wastewater effluent of RANUT has not meet the quality standard that required by the goverment especially for COD. Because of that need to make a furhter research about the treatment of palm oil mill from the fixed bed reactor (RANUT) with electrocoagulation technique. Electrocoagulation is a process of coagulation by using a direct current through an electrochemical events are symptoms of electrolyte decomposition. This study aims to determine the effect of voltage on the adapter parameters on the performance of the electrocoagulation system and determine the best time for treatment of palm oil mill effluent. Type of electrode material used is aluminum, waste retention time 1 hour, 5 cm distance between the electrodes, a strong current of 5 amperes, voltage variations adapter 3, 4, and 5 volts. The results showed that the best results are obtained at a voltage of 5 volts for COD removal 81.32% with a value 233.5 mg/l at 180 minutes of processing time, it indicates that the processed waste has met quality standards for mill effluent COD is 350 mg/l. The highest turbidity removal percentage is obtained at a voltage of 5 volts and at a time of 180 minutes with the acquisition of 95.08%.
Co-Authors Anda Putra Farida Hanum Rondang Tambun William Wardhana Kasim