公开(公告)号：EP2373585A4

公开(公告)日：2012-06-06

申请号：EP09829920

申请日：2009-11-27

申请人： VEOLIA WATER SOLUTIONS & TECH

发明人： BELIVEAU MARC ,  BRUNEAU MICHEL ,  COUTURE MARTIN ,  ESSEMIANI KARIM

IPC分类号： C02F1/38 ,  B01D21/00 ,  B01D21/06

CPC分类号： B01D21/0087 ,  B01D21/003 ,  B01D21/0039 ,  B01D21/02 ,  B01D21/24 ,  B01D21/2405 ,  B01D21/2411 ,  B01D21/2427 ,  B01D21/245 ,  B01D21/26 ,  C02F1/38

摘要： Apparatus and method are provided for separating grit from liquid sewage while retaining organic solids in suspension. A sustained rotational liquid sewage first fluid flow, an induced upward liquid sewage second fluid flow, and a sustained rotational liquid sewage third fluid flow are employed in an apparatus having a cylindrical grit settling main chamber, a grit storage secondary chamber including a central grit settling access top mouth opening, a vertical shaft, a means for causing rotation of the vertical shaft, and a partition extending transversely through the main chamber and forming upper and lower subchambers. A fluid flow speed gradient is established between the liquid sewage third fluid flow and the liquid sewage first fluid flow. In this manner, grit is separated from liquid sewage.

摘要翻译： 提供了设备和方法，用于在将有机固体悬浮在一起的同时将液体污物与砂浆分离。 在具有圆柱形砂粒沉降主室的设备中采用持续旋转的液体污水第一流体流，诱导向上的液体污染第二流体流和持续旋转的液体污染第三流体流，包括中心砂浆沉降的砂粒存储次级室 进入顶口开口，垂直轴，用于使垂直轴旋转的装置，以及横向穿过主室延伸并形成上下子的隔板。 在液体污水第三流体流与液体污水第一流体流之间建立流体流速梯度。 以这种方式，砂浆与液体污水分离。