Recycling begins with garbage sorting at home

Instructors provide door-to-door guidance to protect environment

HANGZHOU - Starting in 2016, Chen Xuefen, a garbage-sorting instructor in Zhejiang province, has been "talking trash" with the help of her smartphone. She scans the QR code on any garbage bag in a trash can and immediately knows who threw it away.

"We get free garbage bags from our community committee. Each household is given bags with a different QR code," Chen said.