Influence of zinc oxide nanoparticles on anaerobic digestion of waste activated sludge and microbial communities
Shutao Wang, Lingbo Chen, Hao Yang, Zhisheng Liu
Abstract
-VSS. High-throughput sequencing analysis revealed that ZnO NPs had an adverse influence on the archaeal community diversity but increased the bacterial community diversity to some extent. High-throughput sequencing analysis also revealed that ZnO NPs resulted in different shift trends in the archaeal and bacteria community structure at phylum, class, and genus levels. ZnO NPs have negative impacts on the Euryarchaeota community, which plays a significant role as methanogens in the anaerobic digestion. In addition, ZnO NPs could increase the relative abundance of Clostridia and Bacteroidia, playing an important role in hydrolysis during the anaerobic digestion.
Topics & Concepts
ZincAnaerobic digestionActivated sludgeChemistryNanoparticleAnaerobic exerciseDigestion (alchemy)Sewage sludgePulp and paper industryWaste managementEnvironmental chemistrySewage treatmentMaterials scienceChromatographyNanotechnologyMethaneBiologyOrganic chemistryEngineeringPhysiologyHealthcare and Environmental Waste ManagementNanoparticles: synthesis and applications