Evidence map›Paper›PMID 40594280›Full record

ArticleScientific reports2025

Modified polyacrylamide nanofiber membrane for efficient nitrate removal from landfill leachate.

Maryam Moghadam, Arash Dalvand, Elham Arkan, Habibeh Nasab, Ali Asghar Ebrahimi

Abstract read
PubMed Full text at PMC Publisher
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. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

Maryam MoghadamEnvironmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Arash DalvandEnvironmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Elham ArkanNano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
Habibeh NasabEnvironmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Ali Asghar EbrahimiEnvironmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. ebrahimi20007@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigates the modification of polyacrylamide (PAM) nanofibers with silver nanoparticles (Ag) and green tea (GT) extract to enhance nitrate removal from landfill leachate collected in Kermanshah, Iran. GT extract was used to synthesize Ag nanoparticles, and 1 wt% of the resulting nanomaterials was added to an 11.7 wt% PAM solution before electrospinning. The fabricated membranes were characterized using scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), and Fourier-transform infrared spectroscopy (FTIR). Their hydrophilicity, water flux, and fouling resistance were also evaluated. Nitrate removal performance was optimized under varying flow rates, pH levels, and pressures using a design of experiments (DOE) approach. The PAM/Ag@GT membrane demonstrated enhanced properties, including reduced fiber diameter, increased porosity (from 26.2 to 58.6%), improved hydrophilicity, and decreased turbidity (from 32 to 3 NTU). Nitrate removal efficiency increased from 32 to 73.25%, with a leachate flux of 1850 L/m²·h and a flux recovery ratio of 84.45%. Additionally, the PAM/Ag@GT membrane exhibited superior tensile strength and elongation compared to unmodified PAM. Under optimal conditions (0.2 bar pressure, pH 7, and a flow rate of 120 L/h), the PAM/Ag@GT membrane demonstrated efficient nitrate removal, enhanced overall performance, and promising potential for sustainable wastewater treatment applications.

Indexed as

Green tea extractLandfill leachateNanocomposite membraneNitrate removalSilver nanoparticles

Identifiers

PMID40594280
PMCPMC12217313

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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.