METHOD FOR UNDERWATER SEDIMENT CLEANING

摘要

PURPOSE: An underwater cleaning method is provided to prevent operators from exposing toxic materials and reduce time for supply and drain water of a storage tank. CONSTITUTION: An underwater cleaning method is as follows. A cleaning robot puts into a storage tank to prepare cleaning of the storage tank(S100). The cleaning robot drives in the storage tank and sucks polluted water including sludge piled on the bottom of the storage tank(S200). The polluted water is discharged to a tank located outside of the storage tank(S300). The sludge in the polluted water is discharged to the outside of the tank and clean water flows into the storage tank(S400).