Effect of the Chemical Composition of Filter Media on the Microbial Community in Wastewater Biofilms at Different Temperatures

Naz, I, Hodgson, D, Smith, A, Marchesi, J, Ahmed, S, Avignone Rossa, C and Saroj, DP (2016) Effect of the Chemical Composition of Filter Media on the Microbial Community in Wastewater Biofilms at Different Temperatures RSC Advances, 6. pp. 104345-104353.

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Abstract

This study investigates the microbial community composition, in the biofilms grown on two different support media in fixed biofilm reactors for aerobic wastewater treatment, using next generation sequencing (NGS) technology.The chemical composition of the new type of support medium (TDR) was found to be quite different from the conventionally used support medium (Stone).The analysis of 16S rRNA gene fragments recovered from the laboratory scale biofilm system show that biofilm support media and temperature conditions influence bacterial community structure and composition. Greater bacterial diversity was observed under each condition, primarily due to the large number of sequences available and sustenance of rare species. There were 6 phyla found, with the highest relative abundance shown by the phylum Proteobacteria (52.71%) followed by Bacteroidetes (33.33%), Actinobacteria (4.65%), Firmicutes, Verrucomicrobia (3.1%) and Chloroflex (>1%). The dataset showed 17 genera of bacterial populations to be commonly shared under all conditions, suggesting the presence of a core microbial community in the biofilms for wastewater treatment. However, some genera in the biofilms on TDR were observed in high proportions, which may be attributed to its chemical composition, explaining the improved level of wastewater treatment. The findings show that the structure of microbial communities in biofilm systems for wastewater treatment is affected by the properties of support matrix.

Item Type:	Article
Subjects :	Civil & Environmental Engineering
Divisions :	Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :	Name Email ORCID Naz, I Hodgson, D Smith, A Marchesi, J Ahmed, S Avignone Rossa, C Saroj, DP
Date :	26 October 2016
Funders :	BBSRC
DOI :	10.1039/C6RA21040F
Grant Title :	A study of metagenomics-informed biochemical functionality of microbial fuel cells using DDGS as a substrate
Copyright Disclaimer :	This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Related URLs :	Publisher
Depositing User :	Symplectic Elements
Date Deposited :	01 Nov 2016 15:02
Last Modified :	11 Dec 2018 11:22
URI:	http://epubs.surrey.ac.uk/id/eprint/812633

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