| 摘要 |
The invention relates to a water purification apparatus comprising a sedimentation basin (10), a flotation basin (20), a flow channel for conveying water containing impurities as flow (A) into the sedimentation basin (10) and means for conveying the purified water out of the water purification apparatus. A flow channel (17) leading out of the sedimentation basin (10) is connected to a mixing channel (21) placed in the flotation basin (20) and containing micro-bubbles, the water in the sedimentation basin (10) which still contains small amounts of impurities being arranged to flow via the flow channel (17) into the mixing channel (21), where the remaining impurities stick to the micro-bubbles in the mixing channel (21) and rise together with the micro-bubbles to the upper surface of the flotation basin (20).
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