SCREENING THE EFFECT OF Co, Zn, and Mn METAL TOWARDS ETHANOL FORMATION IN ANAEROBIC PROCESS OF PALM OIL MILL EFFLUENT (POME) USING 2n FACTORIAL STATISTICS METHOD
Indonesia is one of the tropical countries whose economic contributor is palm oil industry. However, its by-product, such as Palm Oil Mill Effluent (POME) as wastewater, has potential to be utilized as an alternative energy with anaerobic digestion by using ethanol resulted in the process. The anaer...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/34954 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Indonesia is one of the tropical countries whose economic contributor is palm oil industry. However, its by-product, such as Palm Oil Mill Effluent (POME) as wastewater, has potential to be utilized as an alternative energy with anaerobic digestion by using ethanol resulted in the process. The anaerobic treatment produces by-products such as Total Volatile Acids (TVA), ethanol, and various gasses until acidogenesis stage. In (Martinko, 2006), microorganism needs micronutrients as environmental factors that affects anaerobic process, such as heavy metals. In this experiment, artificial POME is utilized as wastewater feeds that will be treated for then to be screened whether there is any correlation effect between the addition of Zn, Mn, and Co metals and ethanol formation using 2n factorial statistics. Microorganism has been through seeding process and stages of acclimatization. The experiment takes place using Circulated Bed Reactor (CBR) for 48 hours with sampling every 12 hour and duplicating reactor variation. Before running, nitrogen flushing for 15 minutes aims to create anaerobic condition. Several parameters are measured every sampling to examine ethanol, TVA, dissolved Chemical Oxygen Demand (CODs), Volatile Suspended Solids (VSS), pH, and Dissolved Oxygen (DO). Statistically, it is proven that Zn metal, Mn, and CoMn combination affect TVA formation while Mn and ZnMn metals combination affect ethanol formation with largest detected ethanol concentration is 9.353,84 mg/L. Organic compound tends to switch to volatile acid rather than ethanol formation, happen when Zn metal and CoMn metals combination are added. |
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