BEBERAPA SIFAT KEHIDUPAN PAECILOMYCES SP DALAM BAHAN BAKAR PESAWAT UDARA JET.
Aviation turbine fuel (AVTUR) is a hydrocarbon compound contaminated with small amounts of impurities such as minerals, water and so on. This mixture can be utilized by microbes for their growth. Microbes which can grow in AVTUR are bacteria, fungi, actinomycetes and yeasts. In the 8 locations of In...
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| Format: | Theses |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/1004 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Aviation turbine fuel (AVTUR) is a hydrocarbon compound contaminated with small amounts of impurities such as minerals, water and so on. This mixture can be utilized by microbes for their growth. Microbes which can grow in AVTUR are bacteria, fungi, actinomycetes and yeasts. In the 8 locations of Indonesia, the types of fungus found were Cladosporium sp, Curvularia sp, Paecilomyces sp, Aspergillus . sp, Penicillium sp, Hormodendrum sp and so on. The fungus most found at these locations was the Paecilanyces sp. The growth of Paecilomyces sp mainly occurs at the interface between water and AVTUR. This growth causes a hydrocarbon degradation, sometimes progressing as far as forming a microbial sludge. Sources of carbon either coming from the media or from hydrocarbon influence the growth of Paecilamyces sp. At first utilizing n-paraffine and subsequently other hydrocarbons, to the point where it degrades the physical characteristics of the AVTUR. Another factor strongly influencing the growth of this fungus in AVTUR is its water content. This degradation causes a reduction in quality to the point where the AVTUR\'s physical characteristics do not come up to the required specifications, such as copper strip, flash point, smoke point and so on. Copper strip becomes positive because of the presence of acid produced by the growth of this microbe. The smoke point will decrease to 22 mm, being caused by n-paraffine degradation to the point wherethe aromatic percentage rises. The flash point will increase because volatile elements are degraded by this microbe. If the characteristics of Paecilomyces sp in AVTUR are known and understood, it is hoped that these results can assist the government in overcoming the problems of fungal growth causing degradation of AVTUR. |
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