水質汚濁防止に関する研究(第6報)Geotrichum candidumによる人工廃水のリン除去について

概要

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A species of a sewage fungus, Geotrichum candidum, was used for a biological purification in removing phosphorus from waste water. The organism grown in a synthetic medium (1% glucose, 0.25% glycine, 0.05% KH_2PO_4) showed 99% removal rate of phosphorus by incorporation into the cells from the medium, and composition of the medium at that time was approximately C : N : P=70 : 8 : 1. The greatest rate of phosphorus removal was found in the organism grown from the lag phase to the exponential phase, and the rate was 1.12% of phosphorus incorporation into the cells grown at the exponential phase. When artificial waste water was used at 3400 mg/l of glucose concentration, effective removal of phosphorus was obtained, and the C : N : P ratio was found to be 108 : 4.4 : 1. There was a marked difference in removal rate according to the kind of carbohydrate. Incorporation of phosphorus into the cells from artificial waste water containing tripolyphosphate was similar with that of orthophosphate. As compared with activated sludge, G. candidum singly showed a greater removal rate of phosphorus than the former.
社団法人日本薬学会の論文
1978-04-30