Storm Tank & Sewer Cleansing
During times of rainfall the sewers within the network systems become surcharged with combined
sewage and storm water. In order to protect the Waste Waster Treatment Works from shock loads
and also reduce the discharge frequencies over the CSOs, engineers are required to design and
install storm water holding tanks and tank sewer pipes. These storage systems hold the storm
flows and act as “buffers” within the networks releasing the water held back onto treatment
once the storm event has past. During the times of storage the sediments held in suspension
within the stored water will settle and form a layer of sludge on the tank floor. The Hydrok
CWF Storm Flush and the HydroSelf tank cleansing system for rectangular and round
tanks provide a proven flushing system for the removal of this sedimentation. Further systems
such as the HydroFlush, HydroFlush Mini and HydroGuard offer solutions for the
flushing of tank sewers and low gradient sewer pipes which may suffer form the same sedimentation
problems.