活性スラッジによる産業廃水の処理に関する研究 : (第7報)抗生物質廃水の処理について(その2)

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It was previously reported that the streptomycin, the kanamycin and the penicillin wastes are able to purified satisfactorily by the activated sludge process. The paper is concerned with the treatment for the blasticidin-S (Bs) waste and its anaerobic digestive fluid. COD and BOD of the Bc waste were 9,610 and 14,475 ppm, and that of the digestive fluid were 3,000 and 2,300 ppm. After the acclimation of the activated sludges with each waste, the treatment tasts were conducted by the shaking method and the continuous treatment apparatus.From the relationship between the aeration time and the percentage of COD reducion by the batchwise test, it was found that the maximum COD loadings of Bc waste and the digestive fluid were both 1.8 kg per cubic meter per day.The predilution of the Bc waste had an important effect upon the activated sludge treatment.When the waste was treated after the dilution more than five times, the COD removal rate increased about 10%. But the predilution of the digestive fluid had no nfluence.The Bc waste diluted five times and the original digestive fluid were treated continuously with the COD loading of 1.8 and 1.3 kg per cubic meter par day for 10 days respectiovely. The BOD removal rate of the Bc waste was about 95%, however, that of the digestive fluid was no more than 54%. Accordingly, the percentage of BOD reduction by the conbinated treatment of the anaerobic digestion and the activated sludge processes is equal to that of the activated sludge process only.The floc of the Bc waste was light, and the sludge volume index was about 170. But the sedimentation rate of the activated sludge of the digestive fluid was high, and the sludge volume index was 30. The amounts of the sludge produced during the purification process were 0.8 to 0.9% in the Bc waste, and 0.3% in the digestive fluid in dryness of the total weight of the original wastes used.
社団法人日本生物工学会の論文
1964-11-25

活性スラッジによる産業廃水の処理に関する研究 : (第7報)抗生物質廃水の処理について(その2)

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