METHOD FOR REMOVING PHOSPHORUS USING MEMBRANE BIOREACTOR
    3.
    发明申请
    METHOD FOR REMOVING PHOSPHORUS USING MEMBRANE BIOREACTOR 审中-公开
    使用膜生物反应器去除磷的方法

    公开(公告)号:US20100288698A1

    公开(公告)日:2010-11-18

    申请号:US12780851

    申请日:2010-05-14

    IPC分类号: C02F11/02 C02F11/04

    摘要: A method for removing phosphorus having steps of a) providing a membrane bioreactor having a membrane module having a lower part; b) aerating intensively the lower part of the membrane module while controlling dissolved oxygen concentration around the membrane module at more than 2 mg/L and dissolved oxygen concentration in the rest zone at less than 1 mg/L so as to form an aerobic zone, a facultative aerobic zone, and an anaerobic zone; and c) introducing sludge having a concentration of between 10,000 mg/L and 30,000 mg/L and having an organic loading of between 0.08 and 0.07 Kg (COD)/(Kg (MLSS)·d) into the membrane reactor so that phosphorus is absorbed in the aerobic zone, released in the facultative aerobic zone, and reduced by phosphine-reducing bacteria into phosphine. The method for removing phosphorus does not include discharging sludge. An apparatus employed for the process does not take up much additional space.

    摘要翻译: 一种用于除磷的方法,其具有以下步骤:a)提供具有膜组件的膜生物反应器,所述膜组件具有下部; b)在膜组件的下部集中充气,同时以小于1mg / L的方式控制膜组件周围的溶解氧浓度超过2mg / L,并且将剩余区域中的溶解氧浓度控制在小于1mg / L,以形成需氧区, 兼性好氧区和厌氧区; 和c)将浓度在10,000mg / L至30,000mg / L之间的有机负荷介于0.08至0.07Kg(COD)/(Kg(MLSS)·d)之间的污泥引入到膜反应器中,使得磷 吸收在需氧区,在兼性好氧区释放,并被膦还原菌还原成磷化氢。 除磷的方法不包括排出污泥。 用于该方法的装置不占用太多的空间。