8.International Conference on Oleo and Petrochemical Engineering 2015

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Browsing 8.International Conference on Oleo and Petrochemical Engineering 2015 by Author "Amri, Idral"

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    Growth Kinetics of Microorganisms On Fiber Solid Waste Composting Of Palm Oil Plant
    (2016-04-22) Firdha, Irena; Ahmad, Adrianto; Amri, Idral
    Solid waste of palm oil has increased along palm oil industry development in Indonesia. Solid waste palm oil mill is organic pollutants. One of it is fiber waste, if it not managed properly will pollute the environment. The purpose of this study was to examine the effect of mixed cultures on process of aerobic composting of palm fiber with windrow method. This research is treating three windrows with size 6 x 1 x 0.5 m3 each one without the addition of a starter, with the addition of starter and addition of starter and POME. The C/N ratio result of the research showed that 19,91 on composting without starter at days 34, 19,73 on composting with starter addition at days 32, and 16,93 at days 30 on composting with addition of starter and POME. Optimum composting is windrow with additing starter and POME. At this composting kinetic parameters are maximum growth rate (μmaks), máximum substrat consumption constanta (Ks), and yield coeficient (Y), continuously 0,73 day-1, 49,1 g/L, and 0,030.
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    Modeling Kinetic Growth Rate at Effect of Palm Oil Fronds and Zeolite (NaHCO3) Utility in Palm Oil Mill Effluent Process Treatment
    (2016-04-22) Bowo, Ari; Amri, Idral; Ahmad, Andrianto
    This study aims to analyze and examine the effect of the use of palm fronds, and Zeolite (NaHCO3), the processing of palm oil mill effluent, which aims to reduce levels of COD palm oil mill effluent, to comply with quality standards issued by the Ministry of Environmental Living No. Kep-51 / MENLH / 10/95, where‘s final COD waste can be discharged into the environment is 350 mg / L, in this study also determine a suitable model, the cell growth curve modeling the microorganism used in the processing of oil mill effluent oil, as well as the impact of the use of agents thixotropic to process the COD reduction of waste. Results of the study showed, that the use of palm frond at 100 grams, is able to gain COD removal efficiency of 90.6%, whereas without the use of palm fronds only 33.3%, with a duration of 8 days diving sewage treatment, whereas the addition of thixotropic agent, can improve COD reduction of waste by 320 mg / L for 10 days, it is within their premises Ministry of Environment standards, while a suitable model to model microorganism cell growth curve is Contoins model
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    Study of Performance of the Electric Generator Portable With NaCl Concentration Variation
    (2016-04-22) Amri, Idral; Sahan, Yusnimar; Martina; Sari, Jenita Maya
    In Indonesia, the consumption of fossil oil as an energy resource will be reduced from 52% in 2015 to 20% in 2025. Galvani cell is one of many energies alternative, and it can be used as an electric resources. In this research, the portable electric generator was designed and builds to generate electric. This generator consists of magnesium AZ91 as an anode, the metal cell MAB5A as a cathode, and NaCl solution as an electrolyte. The objective of this research is determine the performance of this generator by using NaCl concentration variation 6%, 7%, 8%, 9% and 10% and amount of the electrodes pair. The performance of this equipment was measured with a multi tester and Light Emitting Diode (LED) bulb. Results, LED bulb was light on for 31 hours by using NaCl 10% and 10 electrodes pair, this generator unit produced the electric voltage 15.47 volt.