【生态与环境讲坛194讲】Organic waste to bioenergy: technologies, applications and challenges in Australia

2018年01月 9日 于 金泉楼A239


谢思煌 博士后 23

主讲人简介

内容简介

Anaerobic digestion technology has gained global attention due to its pragmatic organic waste management approach coupled with bioenergy production. In this talk, two notable anaerobic technologies, namely dry batch digestion and wet continuous co-digestion, and their pilot and commercial scale applications in Australia will be introduced. Dry batch digestion of shredded municipal waste using a novel flood and drain regime has been performed in commercial scale landfill bioreactors for the first time. The results revealed the superior performance for the technology in terms of rate and extent of waste degradation as well as bioenergy yields. Meanwhile, wet continuous digestion can be readily implemented in the existing infrastructure in wastewater treatment plants, where liquefied organic wastes can be co-digested with sewage sludge to achieve the energy-neutral target. Preliminary results suggest that co-digestion with beverage waste can significantly increase bioenergy production, with no negative impacts on downstream processes.