Method for treating sewage sludge and wastewater treatment plant
    43.
    发明授权
    Method for treating sewage sludge and wastewater treatment plant 有权
    污水处理厂污水处理方法

    公开(公告)号:US09556049B2

    公开(公告)日:2017-01-31

    申请号:US14343087

    申请日:2012-09-10

    摘要: The invention describes a method for treating sewage sludge through the treatment steps of hydrolyzing (2) the sewage sludge (1) and digesting (11) the hydrolyzed sewage sludge (10), which has undergone hydrolysis (2), for the anaerobic treatment of the sewage sludge (1), and through the step of separating phosphate from the at least partially treated sewage sludge (3). Phosphate is separated after the treatment step of hydrolyzing (2) and before the treatment step of digesting (11) the hydrolyzed sewage sludge (3), wherein the sewage sludge (10), without the phosphate portion separated in the phosphate separation step, is fed to the anaerobic treatment performed through digestion (11).

    摘要翻译: 本发明描述了一种通过水解(2)污水污泥(1)并消化(11)已经经过水解的水解污泥(10)(2)的处理步骤来处理污泥的方法,用于厌氧处理 污水污泥(1),并通过从至少部分处理的污水污泥(3)中分离出磷酸盐的步骤。 在水解(2)的处理步骤之后和在消化(11)水解污泥(3)的处理步骤之前分离磷酸盐,其中在磷酸盐分离步骤中没有分离磷酸盐部分的污水污泥(10)是 喂养到通过消化进行的厌氧处理(11)。

    Water treatment method and apparatus therefor
    48.
    发明授权
    Water treatment method and apparatus therefor 有权
    水处理方法及其设备

    公开(公告)号:US09403705B2

    公开(公告)日:2016-08-02

    申请号:US14423880

    申请日:2013-09-03

    摘要: In a water treatment method and an apparatus therefor, after an anionic polymer flocculant is added to water to be treated, granulation is performed by stirring, and solid-liquid separation is then performed to obtain treated water, and flocs which are not disintegrated by a shearing force during stirring and have a preferable settling property can be formed, so that the quality of treated water is also improved. Particularly, a water treatment method includes a flocculating step of adding an anionic polymer flocculant to water to be treated to form flocculated flocs, a subsequent granulating step of stirring the water to be treated to granulate the flocculated flocs, and a solid-liquid separation step of performing solid-liquid separation of generated granulated substances, wherein a cationic polymer flocculant having a cationic group rate of 10 to 50 mole % is added to the water to be treated before the anionic polymer flocculant is added.

    摘要翻译: 在水处理方法及其设备中,将阴离子聚合物絮凝剂加入待处理的水中后,通过搅拌进行造粒,然后进行固液分离,得到处理后的水,并且不会被分解的絮凝物 可以形成搅拌时的剪切力,并且可以形成优选的沉降性,从而也提高了处理水的质量。 特别地,水处理方法包括将阴离子聚合物絮凝剂添加到待处理水中以形成絮凝絮凝物的絮凝步骤,随后的制粒步骤,搅拌待处理的水以使絮凝的絮状物颗粒化;以及固液分离步骤 在添加阴离子聚合物絮凝剂之前,将所得的造粒物质进行固液分离,其中将阳离子基团率为10〜50摩尔%的阳离子性聚合物絮凝剂加入待处理的水中。