Anammox biofilm in activated sludge swine wastewater treatment plants
| Autor: | Chikako Ishimoto, Miyoko Waki, Tomoko Yasuda, Ryu Suto, Mikio Chikyu, Hirohide Uenishi, Yoshito Aihara, Yasuyuki Fukumoto, Toshimi Matsumoto |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Environmental Engineering Swine Sedimentation (water treatment) Health Toxicology and Mutagenesis Wastewater 010501 environmental sciences Biology 01 natural sciences Water Purification Microbiology 03 medical and health sciences Bioreactors Ammonia RNA Ribosomal 16S Animals Environmental Chemistry Anaerobiosis 0105 earth and related environmental sciences Suspended solids Sewage fungi Public Health Environmental and Occupational Health Planctomycetes Biofilm food and beverages General Medicine General Chemistry biochemical phenomena metabolism and nutrition biology.organism_classification Pulp and paper industry Pollution Planctomycetales 030104 developmental biology Activated sludge Anammox Biofilms Sewage treatment Aeration Oxidation-Reduction |
| Zdroj: | SC30201707060005 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2016.09.121 |
| Popis: | We investigated anammox with a focus on biofilm in 10 wastewater treatment plants (WWTPs) that use activated sludge treatment of swine wastewater. In three plants, we found red biofilms in aeration tanks or final sedimentation tanks. The biofilm had higher anammox 16S rRNA gene copy numbers (up to 1.35 × 1012 copies/g-VSS) and higher anammox activity (up to 295 μmoL/g-ignition loss/h) than suspended solids in the same tank. Pyrosequencing analysis revealed that Planctomycetes accounted for up to 17.7% of total reads in the biofilm. Most of them were related to Candidatus Brocadia or Ca. Jettenia. The highest copy number and the highest proportion of Planctomycetes were comparable to those of enriched anammox sludge. Thus, swine WWTPs that use activated sludge treatment can fortuitously acquire anammox biofilm. Thus, concentrated anammox can be detected by focusing on red biofilm. |
| Databáze: | OpenAIRE |
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