Microbial population dynamics in response to bioaugmentation in a constructed wetland system under 10 °C. (April 2016)

• Record Type: Journal Article
• Authors: Zhao, Xinyue; Yang, Jixian; Bai, Shunwen; Ma, Fang; Wang, Li
• Is Part Of: Bioresource technology. Volume 205(2016)
• Page Start: 166
• Page End: 173
• Publication Date: 2016-04
• Subjects: Constructed wetland -- Bioaugmentation -- Bacterial community -- Low temperature; 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.2016.01.043
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Performance of bioaugmentation in a constructed wetland system was studied under 10 °C. Compound nitrogen removal microbial inoculum was established. The microbial inoculum contributed to higher removal efficiency of ammonia. Bacterial communities were revealed by Miseq Illumina high through-put sequencing. Abstract: Compound microbial inocula were enriched and applied to a pilot-scale constructed wetland system to investigate their bioaugmentation effect on nitrogen removal under cold temperature (10 °C). The results showed a 10% higher removal efficiency of ammonia and total nitrogen compared to a control (unbioaugmented) group. The microbial community structures before and after the bioaugmentation were analyzed through high throughput sequencing using Miseq Illumina platform. A variation of species richness and community equitability was observed in both systems. It is demonstrated that, based on the response of both the performance and microbial community, bioaugmentation using compound microbial inocula can fine tune the bacterial population and enhance the nitrogen removal efficiency of a constructed wetland system.