Sewage treatment plant consists of grit chamber
, equalisation tank, fluidised media reactor, sand and carbon filtration.
Computer simulation helped engineers find a more efficient geometry for an aerated grit chamber
, used for a pre-treatment process in a large waste-water plant, that reduced power costs by $200,000 per year.
Follow its progress, starting with the grit chamber
, above right.
It is therefore difficult to provide a grit chamber
that will have the same desirable velocity for all volumes of flow.
A conventional nitrification plant layout consists of a bar screen, grit chamber
, presedimentation tank, aeration tank, and final sedimentation tank.
The solids themselves - a mass of sand, grit, hair, rags, and snails mixed with some sludge - were pumped out in slurry form through 700 ft of contractor-placed temporary on-surface piping to a plant-site grit chamber
. A contractor-supplied 6-in.
mechanisms with these features are provided by Aerators, Inc.; Arlat Inc.; Dorr-Oliver; E & I Corp.