| Title |
A survey of biofilms on wastewater aeration diffusers suggests bacterial community composition and function vary by substrate type and time
|
|---|---|
| Published in |
Applied Microbiology and Biotechnology, June 2016
|
| DOI | 10.1007/s00253-016-7604-7 |
| Pubmed ID | |
| Authors |
Peter A. Noble, Hee-Deung Park, Betty H. Olson, Pitiporn Asvapathanagul, M. Colby Hunter, Manel Garrido-Baserba, Sang-Hoon Lee, Diego Rosso |
| Abstract |
Aeration diffusers in wastewater treatment plants generate air bubbles that promote mixing, distribution of dissolved oxygen, and microbial processing of dissolved and suspended matter in bulk solution. Biofouling of diffusers represents a significant problem to wastewater treatment plants because biofilms decrease oxygen transfer efficiency and increase backpressure on the blower. To better understand biofouling, we conducted a pilot study to survey the bacterial community composition and function of biofilms on different diffuser substrates and compare them to those in the bulk solution. DNA was extracted from the surface of ethylene-propylene-diene monomer (EPDM), polyurethane, and silicone diffusers operated for 15 months in a municipal treatment plant and sampled at 3 and 9 months. The bacterial community composition and function of the biofilms and bulk solution were determined by amplifying the 16S rRNA genes and pyrosequencing the amplicons and raw metagenomic DNA. The ordination plots and dendrograms of the 16S rRNA and functional genes showed that while the bacterial community composition and function of the bulk solution was independent of sampling time, the composition and function of the biofilms differed by diffuser type and testing time. For the EPDM and silicone diffusers, the biofilm communities were more similar in composition to the bulk solution at 3 months than 9 months. In contrast, the bacteria on the polyurethane diffusers were more dissimilar to the bulk solution at 3 months than 9 months. Taken together, the survey showed that the community composition and function of bacterial biofilms depend on the diffuser substrate and testing time, which warrants further elucidation. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 38 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 38 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 6 | 16% |
| Student > Ph. D. Student | 6 | 16% |
| Student > Doctoral Student | 6 | 16% |
| Student > Bachelor | 5 | 13% |
| Professor | 3 | 8% |
| Other | 9 | 24% |
| Unknown | 3 | 8% |
| Readers by discipline | Count | As % |
|---|---|---|
| Engineering | 6 | 16% |
| Environmental Science | 5 | 13% |
| Agricultural and Biological Sciences | 4 | 11% |
| Biochemistry, Genetics and Molecular Biology | 3 | 8% |
| Medicine and Dentistry | 3 | 8% |
| Other | 6 | 16% |
| Unknown | 11 | 29% |
Attention Score in Context
This research output has an Altmetric Attention Score of 9. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 June 2016.
All research outputs
#3,964,151
of 24,119,703 outputs
Outputs from Applied Microbiology and Biotechnology
#946
of 8,034 outputs
Outputs of similar age
#68,378
of 358,841 outputs
Outputs of similar age from Applied Microbiology and Biotechnology
#9
of 124 outputs
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So far Altmetric has tracked 8,034 research outputs from this source. They receive a mean Attention Score of 4.3. This one has done well, scoring higher than 88% of its peers.
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We're also able to compare this research output to 124 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 92% of its contemporaries.