The Dong-A ILBO (Korea)

The government seeks to develop bio gas, or gas generated from waste, as an energy source similar to natural gas. Bio gas is produced when organic materials in garbage, animal waste and sewage dregs decompose.

Bio gas is created by gathering and refining gas given off by waste. Some 60 percent of the ingredients of gas from waste is methane, an energy source for city and natural gas. A refining process eliminates impurities such as ammonia and sulfur compounds that cause foul smells, and results in the production of bio gas 95 percent pure.

Bio gas generates 8,500 calories per square meter, slightly lower than that of natural gas (10,400 calories per square meter).

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