| 摘要 |
A mobile apparatus for treating industrial effluent stored in a tank (16) on site comprises a wheeled chassis carrying a suction source, a series of storage tanks and a separator (23), which may be a belt press or centrifugal decanter, and separates liquid and solid fractions. Initially any oil floating on the surface in tank (16) is drawn into auxilliary tank (15), then the main contents of tank (16) is drawn into tank (14). Upper and lower level detectors (14a, 14b) in tank (14) control the flow into and out of tank (14) to hold the liquid surface between the two levels, liquid flowing only into or out of tank (14) at one time. The liquid is drawn from tank (14) by pump (19) through a muncher (18), which breaks up large solids, and fed to a further tank (20), also provided with level detectors which control pump (19) to maintain a level between (20a) and (20b) to supply separator (23). Solids are removed from separator (23), either as a thick pumpable slurry by pump (32) or by a screw conveyor feeding a belt conveyor. Liquid is removed from separator (23) by a pump (25) to tank (27) with more level detectors which control discharge from tank (27) via pump (28) or valve (U) to a sewer. <IMAGE> |
