Evidence map›Paper›PMID 41326471›Full record

ArticleScientific reports2025

Investigating the impact of PVC microplastics on membrane fouling behavior in MBR for enhanced wastewater treatment efficiency.

Fatemeh Nasiri, Hossein Hazrati, Soorena Gharibian

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Fatemeh NasiriFaculty of Chemical Engineering, Sahand University of Technology, P.O. Box: 51335-1996, Sahand New Town, East Azerbaijan, Iran.
Hossein HazratiFaculty of Chemical Engineering, Sahand University of Technology, P.O. Box: 51335-1996, Sahand New Town, East Azerbaijan, Iran. h.hazrati@sut.ac.ir.
Soorena GharibianFaculty of Chemical Engineering, Sahand University of Technology, P.O. Box: 51335-1996, Sahand New Town, East Azerbaijan, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Studies show membrane bioreactor (MBRs) remove microplastics (MPs) effectively, yet their impacts on fouling, sludge, and microbes remain unclear. Findings vary, few investigations exist, and simplified conditions restrict applicability, highlighting the need for more robust, realistic research on wastewater treatment systems. In this study, the effect of MPs on MBR treating simulated urban wastewater was investigated by evaluating chemical oxygen demand (COD) removal and membrane fouling by adding polyvinyl chloride microparticles (PVC-MPs) into synthetic feed wastewater. The average particle size of MPs was 6.69 ± 4.2 µm. At steady state, the COD removal was 84.76 ± 4.27% and 92.48 ± 5.62% for MBR and MPs-MBR, respectively. The presence of MPs in the MBR led to a ca. 16 and 35% reduction in extracellular polymeric substances (EPS) and soluble microbial products (SMP) content of the sludge cake layer, respectively. Furthermore, the average permeate flux of the MPs-MBR was 48% higher, which was attributed to the properties of the sludge. The presence of MPs had no adverse effect on sludge settleability. The total membrane fouling resistance in the MPs-MBR was lower (1.85 × 10

Indexed as

BioreactorsMembranes, ArtificialMicroplasticsPolyvinyl ChlorideWaste Disposal, FluidWastewaterWater PurificationBiofoulingBiological Oxygen Demand AnalysisSewageMembranes, ArtificialMicroplasticsPolyvinyl ChlorideSewageWastewaterMembrane bioreactorMembrane foulingMicroplasticsWastewater treatment

Identifiers

PMID41326471
PMCPMC12669668

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.