| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce a treatment cost by cutting out the cost for power and facility required for a purification treatment through the performance using the energy possessed by water flow of a stirred mixture of a coagulant and water sent from a pump when water of a pond or a canal is purified using a water purification tank of a simple structure, the water purification tank being disposed under water. <P>SOLUTION: A water purification treatment apparatus includes: a water purification treatment tank constituted of a coagulation reaction tank, a coagulation precipitation tank and a discharge tank which are disposed underwater; an aqueduct which is disposed annularly in the water in the coagulation reaction tank and in which injection holes with small diameters are drilled at specific intervals in the lengthwise direction each on both sidewalls in a horizontal direction to an axial core and on an upper sidewall in a perpendicular direction to an axial core in the view of longitudinal section; a tank for forming a mixture containing the coagulant, which is disposed in the water, and to which water flow into inside from a water passage hole provided on a sidewall and the coagulant is supplied from an upper opening the coagulant is supplied from an upper opening; and an underwater pump which is disposed in the tank for forming the mixture containing the coagulant, and sends the coagulant mixture in the formation tank to the inlet side of the aqueduct with pressure. <P>COPYRIGHT: (C)2012,JPO&INPIT |
