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    • 9. 发明授权
    • Single stage process for continuous introduction of oxygen-containing
gases into effluent containing activated sludge
    • 将含氧气体连续引入含活性污泥的废水中的单阶段方法
    • US4166790A
    • 1979-09-04
    • US790108
    • 1977-04-22
    • Marko ZlokarnikHans GuthTheo Mann
    • Marko ZlokarnikHans GuthTheo Mann
    • B01F3/04B01F3/08B01F5/02B01F5/04C02F3/12C02F3/26F04F5/46C02C1/12
    • C02F3/1294B01F3/0876B01F5/0212B01F5/0413B01F5/0428C02F3/26F04F5/46B01F2003/04879B01F2005/0446B01F3/04099Y02W10/15
    • A process and apparatus for the continuous introduction of air or oxygen-containing gases into an effluent containing activated sludge, the oxygen-containing gas largely being consumed by the effluent containing activated sludge in a single absorption stage, comprising introducing through a plurality of gas inlets an oxygen-containing gas into an effluent containing activated sludge which is in a basin under its own hydrostatic pressure of at least about 0.9 bar, the gas pressure of the gas introduced being about 0.01 to 0.5 bar above the hydrostatic pressure prevailing at the gas inlet, each gas inlet having a gas-swept cross-sectional area of at least about 0.01 m.sup.2 which is loaded by at least about 100 effective cubic meters of gas per square meter of cross-sectional area per hour, and the individual gas inlets being separated by a distance of at least about 0.5 meter, as measured from the middle point of a gas inlet. The gas inlets may be nozzles, ejectors or apertured plates preferably spaced equidistantly from one another and each may be supplied with propulsion liquid comprising effluent containing activated sludge. Preferred ranges from the various parameters depend upon whether the gas introduced contains more or less than 50% by volume of oxygen. Special gas injectors are also provided.
    • 一种用于将空气或含氧气体连续引入含有活性污泥的流出物的方法和装置,所述含氧气体在单一吸收阶段主要被含有活性污泥的流出物消耗,包括通过多个气体入口 将含氧气体输送到含有活性污泥的流出物中,活性污泥在其本身的至少约0.9巴的静水压力下处于盆中,所引入的气体的气体压力高于气体入口处的静水压力约0.01至0.5巴 每个气体入口具有至少约0.01m 2的气体扫掠横截面积,其每小时每平方米横截面面积加载至少约100个有效立方米的气体,并且各个气体入口被分离 从气体入口的中点测量至少约0.5米的距离。 气体入口可以是优选彼此间隔等距离地分开的喷嘴,喷射器或多孔板,并且每个可以供应包括含有活性污泥的流出物的推进液。 来自各种参数的优选范围取决于引入的气体是否含有多于或少于50体积%的氧。 还提供特殊气体喷射器。