| US 7,491,333 B1 | ||
| Industrial waste water treatment process | ||
| Donald A. Luke, Highland City, Fla. (US); and Vaughn V. Astley, Highland City, Fla. (US) | ||
| Assigned to Cleanwater Technologies, LLC, Valrico, Fla. (US) | ||
| Filed on Apr. 17, 2007, as Appl. No. 11/736,144. | ||
| Application 11/736144 is a continuation of application No. 11/610904, filed on Dec. 14, 2006, abandoned. | ||
| Claims priority of provisional application 60/597630, filed on Dec. 14, 2005. | ||
| Int. Cl. C02F 1/52 (2006.01) | ||
| U.S. Cl. 210—638 [210/639; 210/712; 210/713; 210/718; 210/724; 210/726; 210/747; 210/803; 210/804; 210/906; 210/915] | 40 Claims |
| 1. A process for the treatment of waste water comprising the steps of:
admixing partially-treated waste water containing precipitated impurities with a flocculating agent in a flocculation basin;
directing the admixed waste water to an elongated sedimentation basin having a plurality of suction devices disposed along
the longitudinal axis thereof wherein the sedimentation basin comprises a pair of sloped sides to consolidate settled solids
at the bottom of the basin, and is free of mechanical devices to move or consolidate solids;
allowing flocculated solids in the waste water to settle to the bottom of the sedimentation basin and form treated water;
removing the settled solids from the bottom of the sedimentation basin wherein the suction devices are positive displacement
withdrawal devices utilizing one or more stationary pumps to remove settled solids, whereby the withdrawal devices minimize
degradation of the flocculating agent in the removed solids; and
directing the treated water from the sedimentation basin.
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