利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.017 秒)

    Treating effluent with peroxide and iron
    2.
    发明授权
    Treating effluent with peroxide and iron 失效
    用过氧化物和铁处理废水

    公开(公告)号：US4321143A

    公开(公告)日：1982-03-23

    申请号：US161526

    申请日：1980-06-20

    申请人： Klaus G. Wilms ,  Helmut Waldmann

    发明人： Klaus G. Wilms ,  Helmut Waldmann

    IPC分类号： C02F1/72

    CPC分类号： C02F1/722 ,  C02F1/725

    摘要： In the process for decreasing the COD-content of effluent by treating with hydrogen peroxide in the presence of a transition metal compound, the improvement which comprises adding to the effluent about 50 to 65% of the calculated quantity of H.sub.2 O.sub.2 required for the total oxidation of the total COD-content of the effluent, the transition metal compound being dissolved in the effluent in an amount such that the molar ratio of H.sub.2 O.sub.2 to transition metal is from about 30:1 to 3:1, bringing the pH initially to about 2 to 9, maintaining the effluent at about 5.degree. to 100.degree. C., and separating from the effluent whatever material has flocculated. Thereafter the effluent can be subjected to conventional biological degradation such as by the activated sludge process.

    摘要翻译： 在过渡金属化合物存在下通过用过氧化氢处理来降低流出物的COD含量的方法，其改进包括向流出物中加入约50至65％计算出的总氧化所需的H 2 O 2量 流出物的总COD含量，过渡金属化合物以使得H 2 O 2与过渡金属的摩尔比为约30:1至3:1的量溶解在流出物中，使pH最初达到约2至 9，将流出物保持在约5℃至100℃，并且从流出物中分离出任何物质已经絮凝的物质。 此后，流出物可以经历常规的生物降解，例如通过活性污泥法。

    Hydrogen peroxide treatment of effluent
    3.
    发明授权
    Hydrogen peroxide treatment of effluent 失效
    过氧化氢处理废水

    公开(公告)号：US4294703A

    公开(公告)日：1981-10-13

    申请号：US165422

    申请日：1980-07-02

    申请人： Klaus G. Wilms ,  Helmut Waldmann

    发明人： Klaus G. Wilms ,  Helmut Waldmann

    IPC分类号： C02F1/72 ,  C02F3/00

    CPC分类号： C02F1/722 ,  C02F1/725

    摘要： In the process for decreasing the COD-content of effluent by treating with hydrogen peroxide in the presence of a transition metal compound, the improvement which comprises adding to the effluent about 5 to 40% of the calculated quantity of H.sub.2 O.sub.2 required for the total oxidation of the total COD-content of the effluent, the transition metal compound being dissolved in the effluent in an amount such that the molar ratio of H.sub.2 O.sub.2 to transition metal is from about 30:1 to 3:1, bringing the pH initially to about 2 to 9, maintaining the effluent at about 5.degree. to 100.degree. C., and separating from the effluent whatever material has flocculated. Thereafter the effluent can be subjected to conventional biological degradation such as by the activated sludge process.

    摘要翻译： 在过渡金属化合物存在下通过用过氧化氢处理来降低流出物的COD含量的方法，其改进包括向流出物中加入约5至40％的计算量的总氧化所需的H 2 O 2 流出物的总COD含量，过渡金属化合物以使得H 2 O 2与过渡金属的摩尔比为约30:1至3:1的量溶解在流出物中，使pH最初达到约2至 9，将流出物保持在约5℃至100℃，并且从流出物中分离出任何物质已经絮凝的物质。 此后，流出物可以经历常规的生物降解，例如通过活性污泥法。