Pig farm develops ways to turn waste into fertilizers and power

Country working with German experts to improve production, management

Increasingly strict environmental standards in recent years have prompted Ding Dagan, deputy general manager of a pig breeding company in Henan province, to improve waste treatment at his farms, including upgrading the recycling facilities that turn pig waste into farmland fertilizers and methane for fuel.

His latest proposal, made during a visit to the company by a group of German experts late last month, was to fit all its pig houses with waste gas treatment facilities.