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Rabu, 21 Juli 2010

China uses oil-eating bacteria to clean up spill

China uses oil-eating bacteria to clean up spill


China uses oil-eating bacteria to clean up spillAFP/File – Workers drain away polluted water from the Zijin copper mine. Authorities in China are using over 23 …

BEIJING (AFP) – Authorities in China are using over 23 tonnes of oil-eating bacteria to help clean up an oil spill in the Yellow Sea caused by a pipeline explosion and fire at the weekend, state media said Tuesday.

Yang Jiesen, head of the research and development division of a Beijing biotechnology company, said the Maritime Safety Administration had placed its order for the bacteria on Saturday, the official Xinhua news agency reported.

Dozens of oil-skimming vessels and hundreds of fishing boats were working to remove the slick off the northeastern port city of Dalian, after the accident on Friday that spilled an estimated 1,500 tonnes of crudeinto the sea.

"The use of the oil-eating bacteria at the Dalian spill is the first time China has made major use of biotechnology to solve an environmental pollution problem," the report said.

The process, known as bioremediation, uses microorganisms to break down some toxic hydrocarbons present in crude oil into less harmful compounds. It was used to help mitigate the 1989 Exxon Valdez oil spillin Alaska.

The Dalian incident has affected shipments of oil to southern China as the port has been partially closed, but refineries there are now processing inventories so oil prices are not expected to be impacted, Xinhua said.

Meanwhile, workers in Dalian are using oil barriers to prevent the slick from spreading, but are concerned wind and heavy rain could worsen the situation, it added.

So far, at least 460 tonnes of oil have been scooped up, according to the report, which gave no more details about the size of the spill.

According to previous news reports, the worst of the spill initially covered 50 square kilometres (19 square miles) but had been reduced to 45 square kilometres as of Monday.

But Xinhua reported then that a dark brown oil slick had stretched over at least 183 square kilometres of ocean.

http://news.yahoo.com/s/afp/20100720/sc_afp/chinaenvironmentoilpollution_20100720160937

China rushes to keep oil from international waters

China rushes to keep oil from international waters

In this photo released by Greenpeace, a firefighter rush to aid his colleagues who ran into trouble amid thick oil cover as they attempted to fix an uAP – In this photo released by Greenpeace, a firefighter rush to aid his colleagues who ran into trouble amid …

BEIJING – China rushed to keep an oil spill from reaching international waters Tuesday, while an environmental group tried to assess if the country's largest reported spill was worse than has been disclosed.

Crude oil started pouring into the Yellow Sea off a busy northeastern port after a pipeline exploded late last week, sparking a massive 15-hour fire. The government says the slick has spread across a 70-square-mile (180-square-kilometer) stretch of ocean.

Images of 100-foot-high (30-meter-high) flames shooting up near part of China's strategic oil reserves drew the immediate attention of President Hu Jintao and other top leaders. Now the challenge is cleaning up the greasy brown plume floating off the shores of Dalian, once named China's most livable city.

The environmental group, Greenpeace China, shot several photographs at the scene Tuesday before their team was forced to leave. They showed oil-slicked rocky beaches, a man covered in thick black sludge up to his cheekbones, and workers carrying a colleague covered in oil away from the scene. His condition was not known.

Activists said it was too early to tell what impact the pollution might have on marine life.

In a stroke of awkward timing, meanwhile, Dalian's International Beach Culture Festival, which draws thousands of tourists every year, started over the weekend, but the state-run Xinhua News Agency said waters around the beach had not been affected by the slick.

Officials told Xinhua they did not yet know how much oil had leaked, but China Central Television reported that no more pollution, including oil and firefighting chemicals, had entered the sea Tuesday. It was not clear how far the spill was from China's closest neighbor in the region, North Korea.

Dalian's vice mayor, Dai Yulin, told Xinhua that 40 specialized oil-control boats would be on the scene by Tuesday evening, along with hundreds of fishing boats. Oil-eating bacteria were also being used in the cleanup.

"Our priority is to collect the spilled oil within five days to reduce the possibility of contaminating international waters," he said.

But an official with the State Oceanic Administration has warned the spill will be difficult to clean up even in twice that amount of time.

The Dalian port is China's second largest for crude oil imports, and last week's spill appears to be the country's largest in recent memory.

"In terms of what is known to the public, this is definitely the biggest," said Yang Ailun, spokeswoman for Greenpeace China.

"Government and business leaders have been telling the media that there's no environmental impact. From Greenpeace's perspective, that's very irresponsible," she added. "It's too early to tell. Oil is still floating around."

The cause of the blast was still not clear Tuesday. The pipeline is owned by China National Petroleum Corp., Asia's biggest oil and gas producer by volume.

Chinese media continued to report Tuesday on the initial explosion and the oil cleanup. The government is known to censor reporting when an issue becomes too sensitive.

While the Chinese public has not seized on the accident as its own version of the massive BP spill in the United States, warnings over the country's increasing dependence on oil were clear.

The International Energy Agency said Tuesday that China has overtaken the United States as the world's largest energy consumer, using the equivalent of 2.252 billion tons of oil last year. China immediately questioned the calculation.

"China was a spectator of the Gulf of Mexico incident, but suddenly it itself has attracted attention from the whole world," Sima Pingbang, the executive chief-editor of environmental protection website chinaepr, wrote Monday of the explosion and spill. "Chinese can no longer live above such things."

The slick of surface oil in the Gulf of Mexico spill was 2,700 square miles (7,000 sq. kilometers) late last week, far dwarfing the China spill.

But Yang worried that the scope of the Dalian spill was worse than reported so far.

"We need to send more independent voices out there," she said.

http://news.yahoo.com/s/ap/20100720/ap_on_bi_ge/as_china_pipeline_explosion