International

NZ salvors struggle to get oil off stricken container ship

NZ salvors struggle to get oil off stricken container ship

October 16, 2011 | 12:00 AM

AFP/Auckland

New Zealand Army clean-up crews line the beach at Papamoa, outside Tauranga, as salvage workers struggled to begin pumping oil from the stricken container ship off the New Zealand coast
Salvage workers struggled yesterday to begin pumping oil from a stricken container ship off the New Zealand coast as approaching foul weather threatened to disrupt the recovery. The spilled oil has killed about 1,000 birds and has been washed up on once pristine beaches. Authorities yesterday began to reopen sections of popular beaches near where the cargo vessel Rena ran aground 11 days ago after a volunteer army removed more than 600 tonnes of oiled sandy waste. The government is seeking a meeting with the shipping firm that chartered the Rena, saying it was not happy with their response to New Zealand’s worst maritime pollution disaster. Transport Minister Steven Joyce said he had called for talks today with the Mediterranean Shipping Company, the world’s second largest container shipping firm, saying “they have to step up and be part of this exercise”. The Rena remained teetering on the reef, but in calm waters, and Maritime New Zealand (MNZ) salvage head Bruce Anderson said approval had been given to extract the fuel overnight now an evacuation plan was in place. Anderson said the ship is unstable and it was essential to ensure the salvage workers could be taken off if necessary. About 90m of the Rena, in front of a large crack in its hull, is wedged on the Astrolabe Reef, but to the rear of the crack another 60m of the ship is hanging off into deep ocean. Although the forecast was good in the immediate future, rising seas are forecast for tonight. It is believed 1,346 tonnes of oil remain on board the vessel, which was carrying 1,673 tonnes when it ploughed into the Astrolabe Reef early on October 5. If the ship does not break up as the weather worsens, the oil will be pumped out at 20 tonnes an hour and the operation could take several days to complete. “The speed of the operation will depend on a range of factors including weather, the stability of the vessel and the viscosity of the oil. This will be a long process,” MNZ on-scene commander Nick Quinn said. Without power from the ship’s engines, salvage personnel have said that their main difficulty was heating the fuel, which has cooled to a dense consistency, making it harder to pump. The mass volunteer effort to clear away hundreds of tonnes of sludge allowed authorities to reopen public access to a small section of beach on Sunday, although Quinn warned that changing tides and weather conditions could bring more oil ashore. “People shouldn’t panic if they do see some oil around there. It’s been three days since we got any fresh oil off the ship and so the oil that is out there is weathered and less toxic than any fresh oil,” he said. “We are here for the duration of this response. When oil turns up on the shore, we will get it clean and open to the public as soon as we can. And if we need to, we will do that again and again.” The Rena was off course when it ran aground and the New Zealand government has accused the captain of attempting to take a short cut on his way to the port of Tauranga on the east coast of North Island. The captain and the officer on navigational watch when the Liberian-flagged ship ran aground have been charged with operating a vessel in a manner causing unnecessary danger or risk. The charge carries a maximum penalty of one year in jail. While the salvage operation continued, the New Zealand navy was patrolling the area locating containers which had fallen from the teetering vessel and posed a hazard in the shipping channel. DPA adds: “This is a hugely challenging and risky operation even in full daylight,” MNZ salvage manager Bruce Anderson said. “These are incredibly brave and dedicated people working very hard to protect the beaches and coastline of the Bay of Plenty.”Divers reported Saturday that the Rena was not as firmly anchored as had been thought, with the stern, containing most of the oil, sitting over deep water.Anderson told reporters: “There is every chance the vessel could slip off the reef.”Anderson said that with no power on the ship, the oil had turned jelly-like and would be pumped out with an Archimedes screw - a device that will force it through a spiral tube “like a sausage-maker.” It will be transferred to an adjacent tanker barge.The salvage workers will operate from steel platforms they attached to the side of the ship because it was not safe to work inside.

October 16, 2011 | 12:00 AM