Characteristics of Sulfur-oxidizing Bacteria Communities in Wastewater Treatment Processes Analyzed Based on Electron Donor and Acceptor Availability
In this study, we analyzed changes in the community structure of sulfur-oxidizing bacteria (SOB) in a wastewater treatment process handling urban sewage over a 1-year period. Facultative anaerobic SOB, which can use nitrate as an electron acceptor, were predominant over obligate aerobic SOB in the a...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Japan Society on Water Environment
2025-01-01
|
| Series: | Journal of Water and Environment Technology |
| Subjects: | |
| Online Access: |
https://www.jstage.jst.go.jp/article/jwet/23/2/23_24-116/_pdf
|
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849333091991027712 |
|---|---|
| author | Ryoki Asano Atsushi Hayakawa |
| author_facet | Ryoki Asano Atsushi Hayakawa |
| author_sort | Ryoki Asano |
| collection | DOAJ |
| description | In this study, we analyzed changes in the community structure of sulfur-oxidizing bacteria (SOB) in a wastewater treatment process handling urban sewage over a 1-year period. Facultative anaerobic SOB, which can use nitrate as an electron acceptor, were predominant over obligate aerobic SOB in the activated sludge tank and clarifier/settler throughout the investigation period, with mixotrophic SOB being the dominant group. Facultative anaerobic SOB were predominant in most wastewater treatment facilities included in our comparative analysis, confirming observations in the investigated facility. Although the constituent species of SOB in the activated sludge tank and clarifier/settler remained consistent over the investigation period, the proportion of SOB relative to all analyzed sequences fluctuated between 0.91% and 6.20%, with periodic increases and decreases. Sulfuritalea hydrogenivorans, which was the predominant SOB in the activated sludge tank at the investigated facility, exhibited maximum and minimum 11.1- and 6.8-fold differences in abundance between the open and closed tanks, respectively. We conclude that sulfur oxidation by SOB during wastewater treatment can contribute to denitrification under anaerobic conditions. Furthermore, the population of predominant SOB species in the investigated wastewater treatment facility exhibited cyclical fluctuation. |
| format | Article |
| id | doaj-art-e9fb62f734434d40b82987dc322e15b1 |
| institution | Kabale University |
| issn | 1348-2165 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Japan Society on Water Environment |
| record_format | Article |
| series | Journal of Water and Environment Technology |
| spelling | doaj-art-e9fb62f734434d40b82987dc322e15b12025-08-20T03:45:59ZengJapan Society on Water EnvironmentJournal of Water and Environment Technology1348-21652025-01-0123210711910.2965/jwet.24-11610.2965/jwet.24-116Characteristics of Sulfur-oxidizing Bacteria Communities in Wastewater Treatment Processes Analyzed Based on Electron Donor and Acceptor AvailabilityRyoki Asano0Atsushi Hayakawa1 Department of Agro-Food Science, Faculty of Agro-Food Science, Niigata Agro-Food University, Tainai, Japan Department of Biological Environment, Faculty of Bioresource Sciences, Akita Prefectural University, Akita, Japan In this study, we analyzed changes in the community structure of sulfur-oxidizing bacteria (SOB) in a wastewater treatment process handling urban sewage over a 1-year period. Facultative anaerobic SOB, which can use nitrate as an electron acceptor, were predominant over obligate aerobic SOB in the activated sludge tank and clarifier/settler throughout the investigation period, with mixotrophic SOB being the dominant group. Facultative anaerobic SOB were predominant in most wastewater treatment facilities included in our comparative analysis, confirming observations in the investigated facility. Although the constituent species of SOB in the activated sludge tank and clarifier/settler remained consistent over the investigation period, the proportion of SOB relative to all analyzed sequences fluctuated between 0.91% and 6.20%, with periodic increases and decreases. Sulfuritalea hydrogenivorans, which was the predominant SOB in the activated sludge tank at the investigated facility, exhibited maximum and minimum 11.1- and 6.8-fold differences in abundance between the open and closed tanks, respectively. We conclude that sulfur oxidation by SOB during wastewater treatment can contribute to denitrification under anaerobic conditions. Furthermore, the population of predominant SOB species in the investigated wastewater treatment facility exhibited cyclical fluctuation. https://www.jstage.jst.go.jp/article/jwet/23/2/23_24-116/_pdf bacterial communitydna analysissulfur-oxidizing bacteriawastewater treatment |
| spellingShingle | Ryoki Asano Atsushi Hayakawa Characteristics of Sulfur-oxidizing Bacteria Communities in Wastewater Treatment Processes Analyzed Based on Electron Donor and Acceptor Availability Journal of Water and Environment Technology bacterial community dna analysis sulfur-oxidizing bacteria wastewater treatment |
| title | Characteristics of Sulfur-oxidizing Bacteria Communities in Wastewater Treatment Processes Analyzed Based on Electron Donor and Acceptor Availability |
| title_full | Characteristics of Sulfur-oxidizing Bacteria Communities in Wastewater Treatment Processes Analyzed Based on Electron Donor and Acceptor Availability |
| title_fullStr | Characteristics of Sulfur-oxidizing Bacteria Communities in Wastewater Treatment Processes Analyzed Based on Electron Donor and Acceptor Availability |
| title_full_unstemmed | Characteristics of Sulfur-oxidizing Bacteria Communities in Wastewater Treatment Processes Analyzed Based on Electron Donor and Acceptor Availability |
| title_short | Characteristics of Sulfur-oxidizing Bacteria Communities in Wastewater Treatment Processes Analyzed Based on Electron Donor and Acceptor Availability |
| title_sort | characteristics of sulfur oxidizing bacteria communities in wastewater treatment processes analyzed based on electron donor and acceptor availability |
| topic | bacterial community dna analysis sulfur-oxidizing bacteria wastewater treatment |
| url |
https://www.jstage.jst.go.jp/article/jwet/23/2/23_24-116/_pdf
|
| work_keys_str_mv | AT ryokiasano characteristicsofsulfuroxidizingbacteriacommunitiesinwastewatertreatmentprocessesanalyzedbasedonelectrondonorandacceptoravailability AT atsushihayakawa characteristicsofsulfuroxidizingbacteriacommunitiesinwastewatertreatmentprocessesanalyzedbasedonelectrondonorandacceptoravailability |