都市域貯水池の水質改善のための現地調査

概要

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Many reservoirs exist in the Harima region in Hyogo Prefecture, and the water pollution of these reservoirs has become aggravated as a result of urbanization by biological drainage and agricultural drainage. The purpose of this research is to clarify the current state and the cause of the water pollution in the East Harima reservoir, and to show an effective method of the water quality improvement. Inrouike reservoir is in the state of eutrophication year round. The water-bloom is generated in summer, and oxygen deficient water occurs in the bottom layer. The cause of water pollution is influent and colloidal sediment in the reservoir. The water quality of the agricultural effluent deteriorates, and it influences the water quality of the reservoir in the spring. As other causes, the head of a river on the East Harima reservoir is dammed in the middle region of the prefecture. The water quality deterioration of the dam is expected from the result of nitrogen and the chl-a of the channel that expands from the dam.
明石工業高等専門学校の論文