Scupper plug fitted
after clearing the port of discharge, mindful of pollution from the cargo remains.
Prior to the commencement of the hold-cleaning, a quick safety pre-brief meeting should take place, which should include all the personnel who will be involved in the hold cleaning. During the pre-brief the hold-cleaning schedule should be discussed and the equipment and chemicals to be used must be fully explained and the safety data sheets understood by all involved. Basic safety routines should be established and the wearing of suitable attire throughout the hold cleaning must be of paramount importance.
It is essential that permission is given by the port authority for this washing operation.
Under normal circumstances, when it rains during cargo operations, discoloured water from the decks will flow into the dock and this is normally accepted by the port authority. The washing of cargo debris into the dock is not acceptable.
In some loading ports, where helicopter operations are used for embarking and disembarking the pilot, it is a normal requirement of the port to wash down the helicopter area and at least one hatch length either side of the helicopter area, always ensuring that cargo debris is not washed into the dock.
Preparation at sea
To prevent cargo debris from the main deck being walked into the accommodation and tramped into freshly washed cargo holds, wash down the main decks and accommodation block as soon as possible
Hold suction arrangement and filter
Coaming/trackway covered in fertiliser; below, ship’s main deck covered by previous cargo
The wearing of oilskins, safety shoes/safety seaboots, eye protection, hand protection and safety helmets complete with a chin strap, should be made mandatory during the hold cleaning process. The wearing of high visibility waistcoats will help to improve safety in the hold. The ‘permit to work’ should be completed on a daily basis, as this will help reduce the risk of accidents.
Hold cleaning
Prior to high pressure hold washing, excess cargo residue on the tank top should be removed by hand sweeping and lifted out of the holds via the use of a portable mucking winch. As explained earlier, a good working relationship with the stevedores at the discharge port may help to expedite this operation.
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