Sweden helps South Korea convert food waste into biogas

SEOUL -- The South Korean city of Ulsan lets water generated from processing food waste run off into the ocean, which can generate methane gas harmful to the environment.

Now, with the help of a Swedish company, it is going to start converting that waste water into biogas, a type of clean fuel that can be used as power to heat buildings and even run vehicles.

South Korea is looking for ways to increase the use of biogas and other clean energy alternatives amid a push by the government of President Lee Myung-bak to embark on a new development model that emphasizes so-called green growth.

Ulsan, a brawny industrial center of about 1 million people on the country's southeastern coast, saw biogas as an attractive way to deal with a burgeoning waste problem as well as tighter government regulations.

"Ulsan is running out of waste disposal sites to cover all the garbage that comes out from the city," municipal official Park In-muk said Thursday. "When garbage is processed into compost, it creates waste water," he said, which the city has been letting flow into the ocean.

The dumping of waste water generated by the processing of leftover food into the sea, however, will be banned from 2013, according to the Ministry of Land, Transport, and Maritime affairs.

The Ministry of Environment, meanwhile, has increased its budget this year for waste energy, including biogas plants, by five times to 178 billion won ($143 million), according to ministry official Choi Byung-chul.

The government's impending ban on the practice of dumping the waste in the ocean also helped spur Ulsan, home to big corporations Hyundai Motor and Hyundai Heavy Industries, to look for alternatives. It found a partner in Scandinavian Biogas Fuels AB.

The company is based in Sweden, a pioneer in manufacturing and using biogas, which is made by optimizing the decomposition of organic waste that results in a combustible gas that can produce heat or electricity. Upgrading the methane content can create fuel for buses or trucks or cars.