栄養塩内包マイクロカプセルによる海面の油膜の微生物分解の促進効果

概要

論文の詳細を見る
Removal of spilled oil in the sea can be accomplished by microbial degradation, provided that the rate is maintained at a resonably high level. The addition of nutrients seems to increase the population and activities of oil-degrading microorganisms. n-Hexadecane as a model oil was successfully removed by controlling the concentration of nutrients to attain the maximum regradation rate. Fine powders of mixed inorganic salts, consisting of 10 parts of NH_4Cl and 1 part of K_2HPO_4,and working as nutrients for microorganisms, were encapsulated with biodegradable natural waxes of n-paraffin and white beeswax as the wall material. Gradual release of nutrients contained throughout the period of operation. Enhancement by the intermittent supply of encapsulated nutrients of the removal rate of n-hexadecane was also investigated. The removal by Pseudomonas sp. was measured with different supply modes of microcapsules, and in two week's treatment, 60% of n-hexadecane was removed, a remarkable improvement compared with a mere 20% without the supply of microcapsules.
社団法人日本生物工学会の論文
1985-03-25