DOP Submersible dredge pumps

A new use for the DOP dredge pump: not filling but emptying geotubes

PROJECT SUMMARY

Location: Finland

Period : Q3, 2016

Product type : DOP200 with leveler head

Contractor : VESIRAKENNUS OJANEN OY

To dig or to DOP, that is the question!

At an old industrial site, contaminated sand had been stored in geotubes. Due to a land slide, the stored sediment has to be relocated to a safer spot. A DOP200 has been used to clean out the geotubes, and to pump the mixture some 150 m away into new geotubes.

DOP200 emptying geotubes

As centrifugal dredge pumps are not self-priming, the challenge was to start up correctly. For this, additional priming water was added. After filling up the dredge pump, the dredging process was started and the DOP200 empties the geotubes rapidly.

The DOP200 was connected to an excavator using the excavator’s hydraulics.

The DOP200 was connected to an excavator using the excavator’s hydraulics