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‘Rural Pre-salt’: Energy That Comes From Pigs

RIO DE JANEIRO, BRAZIL - What could make an industrial entrepreneur for over 40 years start raising pigs? "All I care about is their shit," replies Romário Schaefer, owner of Stein ceramics in Paraná, laughing.

The pig's waste from his property in the municipality of Entre Rios do Oeste (PR), 133 kilometers from Foz do Iguaçu, is raw material for the production of biogas. The fuel supplies a generator that has reduced the company's electricity costs by half.

Previously an environmental problem, the waste from agricultural production has become a source of income for producers in western . . .

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