{"title":"Enhanced nitrogen and phosphorus removal by Saccharimonadales sp. in a sequencing batch reactor","authors":"","doi":"10.1016/j.bej.2024.109456","DOIUrl":null,"url":null,"abstract":"<div><p>Simultaneous nitrification denitrification and phosphorus removal (SNDPR) is an elegant process that can uptake influent carbon and effectively remove nitrogen and phosphorus from wastewater. However, meeting the increasingly stringent effluent discharge standards requires a more stable performance. This study aimed to analyze the nitrogen and phosphorus removal performance and microbial community shifts of SNDPR system under different levels of dissolved oxygen (DO) in a sequencing batch reactor (SBR). Results showed that maintaining DO levels at 0.4 ± 0.2 mg/L significantly enhanced nutrient removal efficiencies, with an average nitrogen and phosphorus removal rate of 86.28 ± 7.42 % and 92.40 ± 10.48 %, respectively. The research also identified <em>Saccharimonadales</em> sp. as a crucial microbial genus, with its relative abundance increasing from 1.38 % to 28.16 % under optimized conditions. These findings demonstrate that optimizing microbial interactions and DO levels can lead to substantial improvements in wastewater treatment performance, making the process economically viable. This discovery provides a potential pathway for optimizing wastewater treatment processes, leading to the improvement of nutrient removal efficiency, cost savings, and enhancement of environmental sustainability.</p></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":null,"pages":null},"PeriodicalIF":3.7000,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biochemical Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1369703X24002432","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Simultaneous nitrification denitrification and phosphorus removal (SNDPR) is an elegant process that can uptake influent carbon and effectively remove nitrogen and phosphorus from wastewater. However, meeting the increasingly stringent effluent discharge standards requires a more stable performance. This study aimed to analyze the nitrogen and phosphorus removal performance and microbial community shifts of SNDPR system under different levels of dissolved oxygen (DO) in a sequencing batch reactor (SBR). Results showed that maintaining DO levels at 0.4 ± 0.2 mg/L significantly enhanced nutrient removal efficiencies, with an average nitrogen and phosphorus removal rate of 86.28 ± 7.42 % and 92.40 ± 10.48 %, respectively. The research also identified Saccharimonadales sp. as a crucial microbial genus, with its relative abundance increasing from 1.38 % to 28.16 % under optimized conditions. These findings demonstrate that optimizing microbial interactions and DO levels can lead to substantial improvements in wastewater treatment performance, making the process economically viable. This discovery provides a potential pathway for optimizing wastewater treatment processes, leading to the improvement of nutrient removal efficiency, cost savings, and enhancement of environmental sustainability.
期刊介绍:
The Biochemical Engineering Journal aims to promote progress in the crucial chemical engineering aspects of the development of biological processes associated with everything from raw materials preparation to product recovery relevant to industries as diverse as medical/healthcare, industrial biotechnology, and environmental biotechnology.
The Journal welcomes full length original research papers, short communications, and review papers* in the following research fields:
Biocatalysis (enzyme or microbial) and biotransformations, including immobilized biocatalyst preparation and kinetics
Biosensors and Biodevices including biofabrication and novel fuel cell development
Bioseparations including scale-up and protein refolding/renaturation
Environmental Bioengineering including bioconversion, bioremediation, and microbial fuel cells
Bioreactor Systems including characterization, optimization and scale-up
Bioresources and Biorefinery Engineering including biomass conversion, biofuels, bioenergy, and optimization
Industrial Biotechnology including specialty chemicals, platform chemicals and neutraceuticals
Biomaterials and Tissue Engineering including bioartificial organs, cell encapsulation, and controlled release
Cell Culture Engineering (plant, animal or insect cells) including viral vectors, monoclonal antibodies, recombinant proteins, vaccines, and secondary metabolites
Cell Therapies and Stem Cells including pluripotent, mesenchymal and hematopoietic stem cells; immunotherapies; tissue-specific differentiation; and cryopreservation
Metabolic Engineering, Systems and Synthetic Biology including OMICS, bioinformatics, in silico biology, and metabolic flux analysis
Protein Engineering including enzyme engineering and directed evolution.