ArticleInternational journal of environmental research and public health2020
Density-Based Separation of Microbial Functional Groups in Activated Sludge.
Article in International journal of environmental research and public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Similarity of activated sludge and treated wastewater with special reference to nitrifiers and their seasonal variability.Scientific reports · 2026Article
- Biological Activated Sludge from Wastewater Treatment Plant before and during the COVID-19 Pandemic.International journal of environmental research and public health · 2022Article
- Longitudinal monitoring of SARS-CoV-2 in wastewater using viral genetic markers and the estimation of unconfirmed COVID-19 cases.The Science of the total environment · 2022Article
- Spatial and temporal variability and data bias in wastewater surveillance of SARS-CoV-2 in a sewer system.The Science of the total environment · 2022Article
- Removal of SARS-CoV-2 viral markers through a water reclamation facility.Water environment research : a research publication of the Water Environment Federation · 2021Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mechanistic understanding of how activated sludge (AS) solids density influences wastewater treatment processing is limited. Because microbial groups often generate and store intracellular inclusions during certain metabolic processes, it is hypothesized that some microorganisms, like polyphosphate-accumulating organisms (PAOs), would have higher biomass densities. The present study developed a density-based separation approach and applied it to suspended growth AS in two full-scale domestic water resource recovery facilities (WRRFs). Incorporating quantitative real-time PCR (qPCR) and fluorescence in situ hybridization (FISH) analyses, the research demonstrated the effectiveness of density-based separation in enriching key microbial functional groups, including ammonia-oxidizing bacteria (AOB), nitrite-oxidizing bacteria (NOB) and PAOs, by up to 90-fold in target biomass fractions. It was observed that WRRF process functionalities have significant influence on density-based enrichment, such that maximum enrichments were achieved in the sludge fraction denser than 1.036 g/cm
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Registered trials
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