| 摘要 |
A method for purifying contaminated river water which allows waters of a water storage space to be mixed with each other to effectively purify the contaminated river water, easily controls drain of river water, and forms a fishway for enabling fishes to ascend along a river by opening and closing respective opening-and-closing doors of a sluice gate is provided. In a sluice gate(10) and opening-and-closing doors for purifying river water, in which a channel is formed between supporting structures(1) at both sides, the sluice gate is connected between the supporting structures to open and close the channel, and a power means is installed to open and close the channel by operating the sluice gate, a method for purifying contaminated river water is characterized in that: an opening part(11) is formed in a region except the edge of the sluice gate; a plurality of opening-and-closing doors(20) are fixed to the opening part longitudinally and rotatably in an equal distance such that the opening-and-closing doors are closely adhered to one another; operating rods(22) are respectively extracted in an oblique line direction of width of the shafts from shafts(21) of the respective opening-and-closing doors; the respective operating rods are rotatably fixed to piston rods(31) of operating cylinders(30); and the operating cylinders are rotatably fixed to one side of the sluice gate so that the respective opening-and-closing doors are opened and closed according to driving of the operating cylinders to purify the contaminated river water while upper layer water and lower layer water of a water storage space are simultaneously discharged from the water storage space. |
