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    • 50. 发明授权
    • Waste water treatment method and waste water treatment equipment capable of treating waste water containing fuluorine, nitrogen and organic matter
    • 废水处理方法和废水处理设备能够处理含有富鲁氮,氮和有机物的废水
    • US06261456B1
    • 2001-07-17
    • US09342503
    • 1999-06-29
    • Kazuyuki YamasakiKazuyuki Sakata
    • Kazuyuki YamasakiKazuyuki Sakata
    • C02F330
    • C02F1/441C02F1/444C02F3/302C02F2101/14Y10S210/90Y10S210/903Y10S210/908Y10S210/915
    • Waste water containing fluorine, nitrogen and organic matter is treated by introducing the waste water into a water tank filled with calcium carbonate mineral and anaerobic microorganic sludge. An upper portion of the water tank is occupied by the anaerobic microorganic sludge concurrently with natural precipitation of the calcium carbonate mineral toward a lower portion of the water tank. Calcium ions dissolving from the calcium carbonate mineral precipitated in the lower portion of the water tank are made to chemically react with the fluorine in the waste water. At the same time, the organic matter in the waste water is treated by utilizing anaerobic microorganisms in the anaerobic microorganic sludge in the upper portion of the water tank. The nitrogen in the waste water is treated to be reduced by reducibility that the anaerobic microorganisms in the waste water own. There is thus provided the waste water treatment method and waste water treatment equipment capable of treating the waste water containing fluorine, nitrogen and organic matter at low cost without necessitating the organic matter such as methanol as an additional chemical.
    • 通过将废水引入填充有碳酸钙矿物和厌氧微生物污泥的水箱中处理含氟,氮和有机物的废水。 水箱的上部由厌氧微生物污泥占据,同时伴随碳水化合物矿物向水箱下部的自然沉淀。 使从沉淀在水箱下部的碳酸钙矿物溶解的钙离子与废水中的氟发生化学反应。 同时,通过在水箱上部的厌氧微生物污泥中利用厌氧微生物处理废水中的有机物质。 通过废水中的厌氧微生物的还原性来处理废水中的氮被还原。 因此,提供了能够以低成本处理含有氟,氮和有机物的废水的废水处理方法和废水处理设备,而不需要有机物质如甲醇作为附加化学品。