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Study

Study Name: Wastewater retentate microbial community from Saudi Arabia

Projects

Biosamples

Organisms

Biosamples: 6 Seq. Projects: 6
STUDY INFORMATION
GOLD Study ID Gs0145066
Study Name Wastewater retentate microbial community from Saudi Arabia
Other Names
NCBI Umbrella Bioproject Name
NCBI Umbrella Bioproject ID
SRA Studies
SRA Study Id ERP017329  (Link to NCBI )
Study Title Membrane bioreactor-based wastewater treatment plant - Reduction of Viral Diversity, Load and Infectious Capacity
Study Abstract A membrane bioreactor (MBR)-based wastewater treatment plant was assessed for its efficacy to treat and remove viruses from untreated wastewater over a 9-month period. Viral diversity were detected by omics-based approaches. Adenoviruses (AdV) and enteroviruses (EV) were enumerated for their log reduction values (LRV) by digital PCR, and assessed for their infectious particles load using cell culture and immunofluorescence staining. The findings revealed that MBR treatment was successful in reducing the number of viral species throughout the treatment train. However, plant viruses like cucumber green mottle mosaic virus and melon necrotic spot virus remained abundant in the treated effluent. The presence of these plant viruses in treated effluent can undermine the use of such waters for agricultural irrigation. Human enteric viruses were present in comparatively lower abundance than the plant viruses, and were effectively removed by the MBR although at varying LRV for different enteric viruses. AdV copy numbers were reduced by 3.7-logs through the MBR. No infectious AdV particles were found in effluent. In contrast, EV were less effectively removed by the MBR process. The EV copy numbers reduced by 1.7-logs post MBR while infectious EV decreased by an average of 2.0-logs. However, infectious EV remained in the chlorinated effluent, and occasionally in concentrations that approximate to the infectious dose. Overall results showed that a MBR-based WWTP effectively reduced viral diversity, viral load and its infectious capacity. However, differences in the removal efficiencies between AdV and EV particles were observed. Coupled with the presence of infectious EV particles in the chlorinated effluent, the findings suggest a potential concern arising from EV during reuse events. In addition, assessment of treated water quality should take into consideration of both infectious viral concentrations and LRV-centric guidelines.
  
Legacy ER Study ID
Legacy GOLD ID
Added By JGI automated process on 2020-01-02
Last Modified By
PI
Description Wastewater retentate microbial community from Saudi Arabia
Relevance
Study Information Link
Study Information Visibility Public
Metagenomic Study Yes
Publication
Is GEBA
Is HMP
ECOSYSTEM CLASSIFICATION
Ecosystem Engineered
Ecosystem Category Wastewater
Ecosystem Type Unclassified
Ecosystem Subtype Unclassified
Specific Ecosystem Unclassified
STUDY COMPOSITION
Number of Biosamples 6
Number of Organisms 0
Number of Seq Projects 6
Number of Analysis Projects 6
Number of Related Studies 0

 

 

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