In the past, rural conditions were not as good as they are today, and agricultural techniques were much less advanced.
Can you believe that tofu dregs can be turned into clean energy?
Why can’t cities transport human waste to a giant biogas plant to generate biogas for energy?
Recently, a delegation from Italy visited Zhucheng, Shandong Province, China, to inspect a large-scale biomass biogas project implemented by Qingdao Haiyue Environmental Engineering Co., Ltd.
