河川水質の保全と水質浄化法に関する考察 : 高屋川について

In this paper, it has the three contents such that 1) a summary account of the water pollution prevention, 2) a field survey both on the water quality and the discharge of the Takaya River in Fukuyama district, and 3) a experiment for the self-purification based on the contact oxidation through stones. It was analyzed that the water qualities such as COD, T-N and T-P werevery high pollution levels in the Takaya River. And then, the contact oxidation method was evaluated an effectual one for the self-purification of the pollutive river water