Zhao, Yingxin Insights into biofilm carriers for biological wastewater treatment processes: Current state-of-the-art, challenges, and opportunities. [electronic resource] - Bioresource technology Sep 2019 - 121619 p. digital Publication Type: Journal Article; Review ISSN: 1873-2976 Standard No.: 10.1016/j.biortech.2019.121619 doi Subjects--Topical Terms: BiofilmsBioreactorsDenitrificationWaste Disposal, FluidWastewater