屎尿の消化処理に関する研究 (第5報) : 屎尿の酸素吸収に及ぼす稀釈, 熱処理並びに爆気装置の酸素供給の影響

概要

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The night soil utilized about 2200 ppm oxygen after 6〜10 hrs of aeration at the oxygen supply rate of 14.5 mg O_2/l/min. (C.A.R.). The oxygen uptake of night soil on the basis of original night soil scarcely increased until 6 hrs aeraton, but increased remarkably thereafter. The heat treatment of night soil resulted in the prolonged time lag in oxygen uptake. Also the oxygen uptake of night soil was almost ceased by heating at 50℃ for five min. The oxygen uptake of night soil was scarcely influenced by the neutralization of night soil by hydrochloric or sulfuric acid. The higher the O.A.R. value of aerator was, the stronger became the oxygen uptake of night soil.
社団法人日本生物工学会の論文
1960-08-15