Role of primary substrate composition on microbial community structure and function and trace organic chemical attenuation in managed aquifer recharge systems
KAUST DepartmentWater Desalination and Reuse Research Center (WDRC)
Biological and Environmental Sciences and Engineering (BESE) Division
Environmental Science and Engineering Program
Water Desalination & Reuse Research Cntr
MetadataShow full item record
AbstractThis study was performed to reveal the microbial community characteristics in simulated managed aquifer recharge (MAR), a natural water treatment system, under different concentrations and compositions of biodegradable dissolved organic carbon (BDOC) and further link these to the biotransformation of emerging trace organic chemicals (TOrCs). Two pairs of soil-column setups were established in the laboratory receiving synthetic feed solutions composed of different peptone/humic acid ratios and concentrations. Higher BDOC concentration resulted in lower microbial community diversity and higher relative abundance of Betaproteobacteria. Decreasing the peptone/humic acid ratio resulted in higher diversity of the community and higher relative abundances of Firmicutes, Planctomycetes, and Actinobacteria. The metabolic capabilities of microbiome involved in xenobiotics biodegradation were significantly promoted under lower BDOC concentration and higher humic acid content. Cytochrome P450 genes were also more abundant under these primary substrate conditions. Lower peptone/humic acid ratios also promoted the attenuation of most TOrCs. These results suggest that the primary substrate characterized by a more refractory character could increase the relative abundances of Firmicutes, Planctomycetes, and Actinobacteria, as well as associated cytochrome P450 genes, all of which should play important roles in the biotransformation of TOrCs in this natural treatment system. © 2014 Springer-Verlag.
SponsorsThis research was supported by discretionary investigator funds at King Abdullah University of Science and Technology (KAUST). The material presented is also based in part upon work supported by the National Science Foundation under Cooperative Agreement EEC-1028968. The authors are thankful for technical assistance provided by Prof. Pascal Saikaly at KAUST as well as Prof. Jonathan O. Sharp at Colorado School of Mines.
PublisherSpringer Science + Business Media
- Role of primary substrate composition and concentration on attenuation of trace organic chemicals in managed aquifer recharge systems.
- Authors: Alidina M, Li D, Ouf M, Drewes JE
- Issue date: 2014 Nov 1
- Investigating the role for adaptation of the microbial community to transform trace organic chemicals during managed aquifer recharge.
- Authors: Alidina M, Li D, Drewes JE
- Issue date: 2014 Jun 1
- The role of microbial adaptation and biodegradable dissolved organic carbon on the attenuation of trace organic chemicals during groundwater recharge.
- Authors: Hoppe-Jones C, Dickenson ER, Drewes JE
- Issue date: 2012 Oct 15
- Microbial community evolution during simulated managed aquifer recharge in response to different biodegradable dissolved organic carbon (BDOC) concentrations.
- Authors: Li D, Alidina M, Ouf M, Sharp JO, Saikaly P, Drewes JE
- Issue date: 2013 May 1
- Tuning the performance of a natural treatment process using metagenomics for improved trace organic chemical attenuation.
- Authors: Drewes JE, Li D, Regnery J, Alidina M, Wing A, Hoppe-Jones C
- Issue date: 2014