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    • 4. 发明授权
    • Biological process for removing phosphorous involving a membrane filter
    • 用于去除涉及膜过滤器的磷的生物过程
    • US06406629B1
    • 2002-06-18
    • US09646115
    • 2000-09-27
    • Hidayat HusainFrederic KochDeonarine Phagoo
    • Hidayat HusainFrederic KochDeonarine Phagoo
    • C02F330
    • C02F3/1268C02F3/1273C02F3/30C02F3/308Y02W10/15Y10S210/903
    • A waste water treatment process for biologically removing phosphates incorporates a membrane filter. The process includes three zones, an anaerobic zone, an anoxic zone and an aerobic zone containing an anaerobic, anoxic and aerobic mixed liquor. Water to be treated flows first into the anaerobic zone. Anaerobic mixed liquor flows to the anoxic zone. Anoxic mixed liquor flows both back to the anaerobic zone and to the aerobic zone. The aerobic mixed liquor flows to the anoxic zone and also contacts the feed side of a membrane filter. The membrane filter treats the aerobic mixed liquor to produce a treated effluent lean in phosphorous, nitrogen, COD, suspended solids and organisms at a permeate side of the membrane filter and a liquid rich in rejected solids and organisms. Some or all of the material rejected by the membrane filter is removed from the process either directly or by returning the material rejected by the membrane filter to the anoxic or aerobic zones and wasting aerobic sludge. In a first optional side stream process, phosphorous is precipitated from a liquid lean in solids extracted from the anaerobic mixed liquor. In a second optional side stream process, anaerobic mixed liquor is treated to form insoluble phosphates which are removed in a hydrocyclone.
    • 用于生物去除磷酸盐的废水处理方法包括膜过滤器。 该方法包括三个区域:厌氧区,缺氧区和含厌氧,缺氧和有氧混合液的需氧区。 待处理的水首先进入厌氧区。 厌氧混合液流到缺氧区。 缺氧混合液体回流到厌氧区和需氧区。 好氧混合液流到缺氧区,并与膜过滤器的进料侧接触。 膜过滤器处理需氧混合液以在膜过滤器的渗透侧产生贫磷在磷,氮,COD,悬浮固体和生物体中的处理流出物和富含被拒绝的固体和生物体的液体。 由膜过滤器排出的部分或全部材料直接从工艺中除去,或将由膜过滤器排出的材料返回至缺氧或需氧区,并浪费好氧污泥。 在第一任选的侧流方法中,磷从从厌氧混合液中提取的固体中的液体贫中沉淀。 在第二任选的侧流方法中,处理厌氧混合液以形成在水力旋流器中除去的不溶性磷酸盐。
    • 5. 发明授权
    • Biological process for removing phosphorus involving a membrane filter
    • 去除涉及膜过滤器的磷的生物工艺
    • US06485645B1
    • 2002-11-26
    • US10134449
    • 2002-04-30
    • Hidayat HusainFrederic KochDeonarine Phagoo
    • Hidayat HusainFrederic KochDeonarine Phagoo
    • C02F300
    • C02F3/1268C02F3/1273C02F3/30C02F3/308Y02W10/15
    • A waste water treatment process for biologically removing phosphates incorporates a membrane filter. The process includes three zones, an anaerobic zone, an anoxic zone and an aerobic zone containing an anaerobic, anoxic and aerobic mixed liquor. Water to be treated flows first into the anaerobic zone. Anaerobic mixed liquor flows to the anoxic zone. Anoxic mixed liquor flows both back to the anaerobic zone and to the aerobic zone. The aerobic mixed liquor flows to the anoxic zone and also contacts the feed side of a membrane filter. The membrane filter treats the aerobic mixed liquor to produce a treated effluent lean in phosphorous, nitrogen, BOD OR COD, suspended solids and organisms at a permeate side of the membrane filter and a liquid rich in rejected solids and organisms. Some or all of the material rejected by the membrane filter is removed from the process either directly or by returning the material rejected by the membrane filter to the anoxic or aerobic zones and wasting aerobic sludge. In a first optional side stream process, phosphorous is precipitated from a liquid lean in solids extracted from the anaerobic mixed liquor. In a second optional side stream process, anaerobic mixed liquor is treated to form insoluble phosphates which are removed in a hydrocyclone.
    • 用于生物去除磷酸盐的废水处理方法包括膜过滤器。 该方法包括三个区域:厌氧区,缺氧区和含厌氧,缺氧和有氧混合液的需氧区。 待处理的水首先进入厌氧区。 厌氧混合液流到缺氧区。 缺氧混合液体回流到厌氧区和需氧区。 好氧混合液流到缺氧区,并与膜过滤器的进料侧接触。 膜过滤器处理需氧混合液以在膜过滤器的渗透侧产生贫磷在磷,氮,BOD或COD,悬浮固体和生物体中的处理流出物和富含被拒绝的固体和生物体的液体。 由膜过滤器排出的部分或全部材料直接从工艺中除去,或将由膜过滤器排出的材料返回至缺氧或需氧区,并浪费好氧污泥。 在第一任选的侧流方法中,磷从从厌氧混合液中提取的固体中的液体贫中沉淀。 在第二任选的侧流方法中,处理厌氧混合液以形成在水力旋流器中除去的不溶性磷酸盐。