Enhanced anaerobic degradation of quinoline, pyriding, and indole with polyurethane (PU), Fe3O4@PU, powdered activated carbon (PAC), Fe(OH)3@PAC, biochar, and Fe(OH)3@biochar and analysis of microbial succession in different reactors. (November 2019)

• Record Type: Journal Article
• Authors: Li, Kun; Shi, Jingxin; Han, Yuxing; Xu, Chunyan; Han, Hongjun
• Is Part Of: Bioresource technology. Volume 291(2019)
• Publication Date: 2019-11
• Subjects: Nitrogen heterocyclic compounds -- Enhanced anaerobic degradation -- Polyurethane -- Powdered activated carbon -- Biochar; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2019.121866
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Loading of iron oxide on PU, PAC, and biochar enhanced degradation of NHCs. Fe3 O4 @PU had the optimal degradation ratios on quinoline, pyridine, and indole. Loading of iron oxide improved the diversity of microbial community structure. Fe3 O4 @PU enriched the Zoogloea, Thiobacillus, and Anaeromyxobacter . Abstract: The study was to explore the feasibility of polyurethane (PU), Fe3 O4 @PU, powdered activated carbon (PAC), Fe(OH)3 @PAC, biochar, and Fe(OH)3 @biochar as biological carriers in strengthening anaerobic degradation of quinoline, pyridine, and indole. When the concentrations of pollutants were 25 mg/L and 50 mg/L, reactors based on PAC and Fe(OH)3 @PAC had higher degradation ratios than the other reactors. However, when the concentrations of pollutants were 75 mg/L and 100 mg/L, with the addition of PU and Fe3 O4 @PU, reactors began to show their superiority in the degradation of the selected NHCs. Among these, the reactor based on Fe3 O4 @PU had the optimal degradation ratio on quinoline, pyridine, and indole. PU, PAC, Fe(OH)3 @PAC, biochar, and Fe(OH)3 @biochar benefited the enrichment of Acinetobacter, Comamonas, Levilinea, Longilinea, and Desulfomicrobium . The reactor with the carrier of Fe3 O4 @PU had some specificity, which benefited the enrichment of Zoogloea, Thiobacillus, Anaeromyxobacter, Sphingobium, Terrimonas, Parcubacteria genera incertae sedis, Bdellovibrio, Rhizobium, and Acidovorax .