| 摘要 |
PROBLEM TO BE SOLVED: To provide a water treatment method capable of effectively performing water treatment of water to be treated which contains ferrous ions. SOLUTION: The water treatment method includes: a first step of oxidizing the ferrous ions contained in the water to be treated; a second step of giving carriers into the water to be treated, depositing iron oxyhydroxide after oxidation onto surfaces of the carriers and stripping the iron oxyhydroxide from the surfaces of the carriers by means of flow of the water to be treated; a third step of injecting an inorganic coagulant into the water to be treated; a fourth step of quickly stirring the water to be treated; and a fifth step of introducing the water to be treated into a sedimentation pond involving an upward stream and causing the water to be treated to pass between a plurality of inclined plates arranged in routes of the upward stream. COPYRIGHT: (C)2011,JPO&INPIT
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