間欠曝気式ラグーンにおける高率窒素除去に関する研究-I : 窒素除去率について

概要

論文の詳細を見る
The high rate removal of total N has been observed since January 1975 in the treatment water in a lagoon with intermittent aeration at the plant of fish and meat packing of Daito Shokuhin Co. Ltd. To clarify why the high rate removal of total N has been obtained by the treatment of waste water in the lagoon and to find the method and the operation to raise the removal rate of nitrogen further, the contents of organic and inorganic introgen compounds in influent and effluent and the removal rate of nitrogen were observed from March 1976 to February 1977. The contents of total N in the influent and effluent ranged from 8.1 to 25.7 mg-N/l and from 0.32 to 7.5 mg-N/l, respectively, and the average and maximum removal rates of nitrogen were ca. 85 and 98%, respectively. Further, the removal of excess sludge and the addition of organic matter such as methanol were not needed in the present treatment.
公益社団法人日本水産学会の論文