Utilization of Palm Oil Mill Effluent (POME) from the Residual Biogas Power Plant for Microalgae Production as Raw Material of Biodiesel

Rahmat Wahyudi Nasution,Suprihatin ,Erliza Hambali

doi:10.31033/ijemr.9.5.20

Abstract

Palm Oil Mill Effluent (POME) from the residue of biogas power plants generated by the Palm Oil Mill as the waste is still a problem in the processing environment and the environmental impact. However, POME waste still contains nutrients which are essential to the growth of microalgae as a growing medium. Utilization of POME can improve the growth of microalgae Botryococcus braunii compared to conventional media. By doing this project, the cost used by the palm oil mill waste management can be reduced and even be able to provide profits for palm oil mill and also can reduce the negative impact on the environment. The study was conducted at the Microalgae Laboratory of SBRC - IPB in September-Oktober 2018. Botryococcus braunii was cultivated in 1,000 ml erlenmeyer compared to standard medium as the control solution of 0.1% POME from the residue biogas power plants. Observation of Botryococcus braunii growth curve has carried out in accordance. Studies were arranged in CRD, with three replication. The results showed that the rate of Botryococcus braunii growth in POME is higher than the control for 2.7x106 sel/ml. And lipid extraction using osmotic shock method with HCl and CH3COONa as osmotic agents in concentrations of 0.1; 0.3; 0.5 M, the highest yield of 0.108 g was obtained on the osmotic agent CH3COONa 0.3 M.

Highlights

Fossil energy is currently used for household, automotive, and industrial purposes, which has produced various kinds of gas pollution such as carbon dioxide, sulfur dioxide, smoke, fly ash, and so on, which causes global warming and climate change
Materials that will be used in this research are; microalgae starter Botryococcus braunii, Palm Oil Mill Effluent (POME) liquid waste, Za fertilizer, urea, TSP, Guillard, liquid NPK, distilled water, alum, BF3 concentration 3%, NaOH, HCl, CH3COONa and hexane
Based on the GC-MS results, it can be seen that Methyl Esters produced from extraction using HCl osmotic agents contain 40.102% more Saturated Faty Acid (SAFA) compared to methyl esters from the extraction results using 35.3487% CH3COONa osmotic agent

Summary

Introduction

Fossil energy is currently used for household, automotive, and industrial purposes, which has produced various kinds of gas pollution such as carbon dioxide, sulfur dioxide, smoke, fly ash, and so on, which causes global warming and climate change. One of the biggest producers of pollution and waste is from the palm oil processing industry. The treatment of wastes in reservoirs will produce methane gas (CH4) and carbon dioxide (CO2). Both of these gases are emissions that cause global warming, which is dangerous for the environment. During this time the two gases are allowed to evaporate into the air. Palm oil liquid waste contains acidic organic compounds as a result of microorganism processes. The combination of the two methods can be utilized in an effort to produce microalgae biomass (Kawaroe, 2010)[1]

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