Sludge dredging and dewatering process
    3.
    发明授权
    Sludge dredging and dewatering process 失效
    污泥疏浚和脱水过程

    公开(公告)号:US5575921A

    公开(公告)日:1996-11-19

    申请号:US385344

    申请日:1995-02-08

    CPC分类号: C02F11/123 C02F11/14

    摘要: A method is disclosed for remediating ponds and other water sites containing sludge and other waste materials by a dredging and dewatering process which is economical and efficient, uses relatively low cost equipment and provides for high remediation rates. The preferred process dredges the site to produce a sludge which is screened to remove oversize material. The screened sludge is then thickened and the thickened sludge dredged and fed as a uniform thickened sludge mixture to a filter press to dewater the sludge producing a final sludge product having a high solids content. A coagulant is preferably added to the sludge and a polymer and/or coagulant added to the thickened sludge filter press feed.

    摘要翻译: 公开了一种通过疏浚和脱水方法修复池塘和其他含有污泥和其他废物的水处理的方法,该方法是经济和有效的,使用相对低成本的设备并提供高修复率。 优选的方法是疏通现场以产生污泥,其被筛选以去除过大的材料。 然后将筛选的污泥加厚,并将增稠的污泥疏浚并作为均匀的增稠污泥混合物加入到压滤机中以使污泥脱水,产生具有高固体含量的最终污泥产物。 优选将淤凝剂加入到污泥中,并将聚合物和/或凝结剂加入到增稠污泥压滤机中。