Atrazine biodegradation by a monoculture of Raoultella planticola isolated from a herbicides wastewater treatment facility

2014 ◽  
Vol 92 ◽  
pp. 6-11 ◽  
Author(s):  
Nissim Swissa ◽  
Yeshayahu Nitzan ◽  
Yakov Langzam ◽  
Rivka Cahan
Keyword(s):  
Wastewater Treatment ◽  
Treatment Facility ◽  
Raoultella Planticola ◽  
Wastewater Treatment Facility

scholarly journals Pollutant-Removing Biofilter Strains Associated with High Ammonia and Hydrogen Sulfide Removal Rate in a Livestock Wastewater Treatment Facility

2021 ◽  
Vol 13 (13) ◽  
pp. 7358
Author(s):  
Dong-Hyun Kim ◽  
Hyun-Sik Yun ◽  
Young-Saeng Kim ◽  
Jong-Guk Kim
Keyword(s):  
Wastewater Treatment ◽  
Hydrogen Sulfide ◽  
Microbial Community ◽  
Microbial Communities ◽  
Illumina Miseq ◽  
Illumina Miseq Sequencing ◽  
Miseq Sequencing ◽  
Treatment Facility ◽  
Livestock Wastewater ◽  
Wastewater Treatment Facility

This study analyzed the microbial community metagenomically to determine the cause of the functionality of a livestock wastewater treatment facility that can effectively remove pollutants, such as ammonia and hydrogen sulfide. Illumina MiSeq sequencing was used in analyzing the composition and structure of the microbial community, and the 16S rRNA gene was used. Through Illumina MiSeq sequencing, information such as diversity indicators as well as the composition and structure of microbial communities present in the livestock wastewater treatment facility were obtained, and differences between microbial communities present in the investigated samples were compared. The number of reads, operational taxonomic units, and species richness were lower in influent sample (NLF), where the wastewater enters, than in effluent sample (NL), in which treated wastewater is found. This difference was greater in June 2019 than in January 2020, and the removal rates of ammonia (86.93%) and hydrogen sulfide (99.72%) were also higher in June 2019. In both areas, the community composition was similar in January 2020, whereas the influent sample (NLF) and effluent sample (NL) areas in June 2019 were dominated by Proteobacteria (76.23%) and Firmicutes (67.13%), respectively. Oleiphilaceae (40.89%) and Thioalkalibacteraceae (12.91%), which are related to ammonia and hydrogen sulfide removal, respectively, were identified in influent sample (NLF) in June 2019. They were more abundant in June 2019 than in January 2020. Therefore, the functionality of the livestock wastewater treatment facility was affected by characteristics, including the composition of the microbial community. Compared to Illumina MiSeq sequencing, fewer species were isolated and identified in both areas using culture-based methods, suggesting Illumina MiSeq sequencing as a powerful tool to determine the relevance of microbial communities for pollutant removal.

Resilience of a Combined Chemical-Physical and Biological Wastewater Treatment Facility

2019 ◽  
Vol 145 (7) ◽  
pp. 05019002 ◽  
Author(s):  
Maria C. Collivignarelli ◽  
Alessandro Abbà ◽  
Giorgio Bertanza ◽  
Silvestro Damiani ◽  
Massimo Raboni
Keyword(s):  
Wastewater Treatment ◽  
Biological Wastewater Treatment ◽  
Treatment Facility ◽  
Wastewater Treatment Facility
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