摘要：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% KH2PO4) 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.
关键词：Geotrichum candidum;activated sludge;artificial wastewater;synthetic sewage;phosphorus removal;tripolyphosphate;MLSS;SV;COD removal rate;C : N : P ratio
