Water and Wastewater Terms Beginning T

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

tube settler

A device that uses bundles of small-bore (2 to 3 inches or 50 to 75 milimeters) tubes installed on an incline as an aid to sedimentation. The tubes may come in a variety of shapes including circular and rectangular. As water rises within the tubes, settling solids fall to the tube surface, and as the resulting sludge gains weight, it moves down the tubes and settles to the bottom of the basin for removal by conventional sludge collection means. Also called high-rate settlers.