公开(公告)号：US11807558B2

公开(公告)日：2023-11-07

申请号：US14947795

申请日：2015-11-20

申请人： SUEZ International

发明人： Peter Temple Ballard ,  Raed Labban

IPC分类号： C02F1/52 ,  B01D21/01 ,  B01D21/26 ,  B01D21/28 ,  C02F1/56 ,  C02F1/38 ,  C02F1/72

CPC分类号： C02F1/5236 ,  B01D21/01 ,  B01D21/267 ,  B01D21/28 ,  C02F1/56 ,  C02F1/385 ,  C02F1/72 ,  C02F2301/046 ,  C02F2303/18 ,  C02F2305/12

摘要： In general, the present invention is directed to systems and methods of providing improved ballasted clarification systems for the treatment of water or wastewater. In accordance with some embodiments, a method may include introducing an influent including the water or wastewater and a coagulant; agitating or mixing the influent causing flocs to develop; introducing polymer and ballast wherein the ballast has an aspect ratio of less than 1.15; agitating or mixing the influent causing the ballast to move through the influent and penetrate the flocs; agitation or mixing the flocs to cause larger flocs to form through collision of smaller flocs among the flocs; providing the influent into a clarifying tank having a bottom and a top, wherein the ballast particles in flocs cause the flocs to settle to the bottom of the clarifier; and outputting an effluent from the top of the clarifying tank.