Facility aims for zero waste

At around 7 am, trucks loaded with several metric tons of chicken bones, heads and intestines arrived at a waste disposal plant and dumped the nonedible chicken parts into an underground container through a small hole.

"It's like filling oil tanks in a gas station," said Jiang Haijun, general manager of the plant in Guangze county, East China's Fujian province.

The waste was then pumped into a chain of cauldrons and tubes in a separate room for high-temperature sterilization, steaming and drying. Five hours later, the waste was converted into fish feed.