A refuse-burning boiler unit at a Western Power biomass power generation station in Zhangye, Northwest China's Gansu province, is in operation on June 25, 2021. The unit can process 600 tons of local domestic garbage and produce 200,000 kWh of electricity every day, and the waste can also be made into bricks or cement.

A worker checks the operation of sewage treatment at a biomass power generation station of the Western Power in Zhangye, on June 25, 2021. [Photo provided to chinadaily.com.cn]

Workers check a refuse burning boiler at a biomass power generation station of the Western Power in Zhangye, on June 25, 2021. [Photo provided to chinadaily.com.cn]

A worker operates a machine claw to move trash at a biomass power generation station of the Western Power in Zhangye, on June 25, 2021. [Photo provided to chinadaily.com.cn]