富士地区製紙工場排水および河川水のパルプかす濃度と型の排水処理前後における変化について

概要

論文の詳細を見る
The "Hedoro" pollution of Tagonoura Bay by paper mill effluent from the Fuji district is reported to have improved markedly in recent years. In order to determine the mechanism of this improvement, a study was made of the pulp wastes present in the effluent within the paper mill of highest production and in the river water of the Fuji district. This report presents the main results of a comparison of the wastes before and after treatment of the effluent. 1) It was found that in the river water the water sampling method resulted in collection of a greater proportion of small waste particles, whereas the net sampling method took mainly large waste particles. 2) The comparison with the waste present in the effluent within the mill showed a sharp decrease in weight (to 1/300), number (to 1/44), and mean length (1/3.3), and a marked change in the shape distribution.
日本水産學會の論文