Bulk Carrier Guide Online
Bulk Carrier Guide Online
Home ||| Bulk Cargo ||| Planning ||| Care ||| Safety||| Self unloaders

Holds rejected for not being cleaned to grain standards


A bulk carrier which was loading maize in bulk her holds rejected for not being cleaned to grain standards a recent case study from P&I club reveals the fact.

Reason of hold failure : Previous three dirty cargoes of green delayed pet coke, coal and iron ore and in second case hold was damp due to ship sweating due to ambient temperature difference.

Earlier Vessel was nominated to load a cargo of Green delayed pet coke from venezuella, the charterers were informed well in advance that hold block will need to be applied for this particular cargo however on arrival load port although protested by the vessel the cargo was loaded with the green delayed pet coke withouth the application of hold block due to the paucity of time under the assurance that the cleaning will be on charterers account post the discharge.



The vessel was supplied with some ladders and chemicals which were of very little use as the stains were so strongly adhered that it could not be removed in spite of repeated high pressure washing or use of the supplied chemicals.
HOLD damp with humidity after opening hatches
Fig: HOLD damp with humidity after opening hatches

The next cargo after discharge of GDP was fixed for grain. Although considerable efforts were undertaken by the ships staff in cleaning the holds with the supplied chemicals the holds could not be presented in grain ready condition The stains could be partially removed only after a close up cleaning in the dry dock and painting of lower hopper areas.

It should be re-membered that because of the sulphur content of pet coke, not only cleaning but also corrosion might create problems. Rotation of such cargoes such as pet coke/coal and salt may give rapidly-attacking rust problems, even if the protective paint is considered to be in a good condition


HOLD condition after high pressure & Chemical wash
Fig:HOLD condition after high pressure & Chemical wash

Vessel arrived at Argentinian port to Load grain and all holds were cleaned to grain standards, However on opening the hatch covers during the inspection it was observed that the hold was damp with humidity. The inspectors rejected the holds on the grounds that holds were not presented grain ready Ship sweat refers to condensation which forms directly on a vesselís structure when the air within a hold, made warm and moist by the cargo or even when empty if closed with warm air inside, comes into contact with cold surfaces as the vessel moves into cooler climates or surfaces in contact with ballast tanks which are relatively cooler. Cargo may be damaged by overhead drips or even the hold becomes damp, by contact with sweat which has formed on the shipís sides or by condensed water which may accumulate at the bottom of the hold.

Conclusion:




Related information

Cargo hold cleaning problem and related guideline

Cargo hold maintenance guideline

Hold preparation checklist -Cleanliness/preparation, additional measures

Cargo holds readinesss, maintenance requirement, preventing stevedore damages & safety aspects

Cargo hold inspection -Reasons for failing hold inspections

Chief officers final inspection prior cargo hold survey

Maintenance procedure for mechanical steel hatch covers



Our detail pages illustrated many safety aspects of Bulk carrier

Home page |||Bulk carrier types ||| Handling of bulk coal |||Cargo planning ||| Carriage of grain |||Risk of iron ores |||Self unloading bulk carriers |||Care of cargo & vessel |||Cargoes that may liquefy |||Suitability of ships |||Terminal guideline |||Hold cleaning |||Cargo cranes |||Ballast handling procedure |||Bulk carrier safety |||Fire fighting systems |||Bulk carrier General arrangement





Top articles

  1. Garbage management plan for bulk carriers


  2. Classification of various dry bulk commodities


  3. Cargo hold cleaning recommended chemicals


  4. Various Cargo Hold Cleaning Kits & chemical washing technics


  5. Cargo hold Swept cleaning, Washing down, Use of chemicals, Limewashing & Drying holds technics


  6. Cargo hold cleaning problem and related guideline


  7. Hold cleaning in bulk carriers- Preparation for grain loading

  8. Methods of cargo hold cleaning


  9. Cargo hold maintenance guideline


  10. Hold preparation checklist -Cleanliness/preparation, additional measures


  11. Cargo holds readinesss, maintenance requirement, preventing stevedore damages & safety aspects


  12. Cargo hold inspection -Reasons for failing hold inspections


  13. Chief officers final inspection prior cargo hold survey


  14. Maintenance procedure for mechanical steel hatch covers




Operation of sea going bulk carriers involved numerous hazards . Careful planning and exercising due caution for all critical shipboard matters are important . This site is a quick reference to international shipping community with guidance and information on the loading and discharging of modern bulk carriers so as to remain within the limitations as specified by the classification society.
It is vital to reduce the likelihood of over-stressing the ship's structure and also complying with all essential safety measures for a safe passage at sea. Our detail pages contain various bulk carrier related topics that might be useful for people working on board and those who working ashore in the terminal. For any remarks please Contact us

Copyright © 2010 www.bulkcarrierguide.com All rights reserved.

Although every effort have been taken to improve the accuracy of content provided the publisher of this website cannot take responsibility for errors. Disclaimer Privacy policy Home page