マイクロカプセルの利用による海面の原油の微生物処理

概要

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Pseudomonas sp. treatment of crude oil film spread over the sea surface was better with the sustained supply of encapsulated nutrient salts. Four clude oils, Arabia light, Berri, Murban, and Khafji, were investigated. The percentage of removal of crude oil was improved to 45-58% by the microcapsules compared with 12-19% with no microcapsules.The total dosage required was 12% of crude oil with the lapse of seven days between the successive supplies. Samples of crude oil were fractionated into saturated, aromatics, asphaltene, and column residue fractions to investigate the effectiveness of microbial decomposition by column chromatography. Activated alumina was used as a packing reagent. The saturated fraction was most decomposed, followed by the aromatics, however, the asphaltene and column residue were only sparsely decomposed. n-Alkanes among the saturated fraction were distributed from 14 to 32 carbon atoms, and decomposition was not dependent on the chain length.
社団法人日本生物工学会の論文
1987-03-25