Evidence map›Paper›PMID 34173877›Full record

ReviewEnvironmental monitoring and assessment2021

Ecofriendly remediation technologies for wastewater contaminated with heavy metals with special focus on using water hyacinth and black tea wastes: a review.

Heba Elbasiouny, Marwa Darwesh, Hala Elbeltagy, Fatma G Abo-Alhamd, Ahlam A Amer, Mariam A Elsegaiy, Israa A Khattab, Esraa A Elsharawy, Fathy Ebehiry, Hassan El-Ramady and 1 more

Erratum issuedAbstract readReview
In one paragraph

Review in Environmental monitoring and assessment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Review
  2. Review
  3. Turning waste into a resource: coal fly ash as a sustainable approach for heavy metal removal in contaminated waters.Water science and technology : a journal of the International Association on Water Pollution Research · 2026
    Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Heba ElbasiounyDepartment of Environmental and Biological Sciences, Al-Azhar University, Home Economics Faculty, Tanta, 31732, Egypt.
Marwa DarweshDepartment of Environmental and Biological Sciences, Al-Azhar University, Home Economics Faculty, Tanta, 31732, Egypt.
Hala ElbeltagyDepartment of Environmental and Biological Sciences, Al-Azhar University, Home Economics Faculty, Tanta, 31732, Egypt.
Fatma G Abo-AlhamdDepartment of Environmental and Biological Sciences, Al-Azhar University, Home Economics Faculty, Tanta, 31732, Egypt.
Ahlam A AmerDepartment of Environmental and Biological Sciences, Al-Azhar University, Home Economics Faculty, Tanta, 31732, Egypt.
Mariam A ElsegaiyDepartment of Environmental and Biological Sciences, Al-Azhar University, Home Economics Faculty, Tanta, 31732, Egypt.
Israa A KhattabDepartment of Environmental and Biological Sciences, Al-Azhar University, Home Economics Faculty, Tanta, 31732, Egypt.
Esraa A ElsharawyDepartment of Environmental and Biological Sciences, Al-Azhar University, Home Economics Faculty, Tanta, 31732, Egypt.
Fathy EbehiryCentral Laboratory of Environmental Studies, Kafrelsheikh University, Kafr El-Sheikh, 33516, Egypt.
Hassan El-RamadySoil and Water Dept, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, 33516, Egypt.
Eric C BrevikCollege of Agricultural, Life, and Physical Sciences, Southern Illinois University, Carbondale, IL, 62901, USA. calpsdean@siu.edu.ORCID http://orcid.org/0000-0002-6004-0018

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Treatment of water contaminated with heavy metals is challenging. Heavy metals are non-degradable, persistent in the environment, have a high dispersion capacity by water, can bioaccumulate, and represent risks to human and environmental health. Conventional treatment methods have disadvantages; however, adsorption in biomass is a highly promising method with high efficiency and low cost that avoids many of the disadvantages of conventional methods. Black tea (BT) wastes and water hyacinth (WH) have attracted attention for their ability to remove heavy metals from wastewater. Utilizing these approaches can remove contaminants and effectively manage problematic invasive species and wastes. The conventional uses of BT and WH were efficient for removing heavy metals from wastewater. Due to the unique and distinct properties and advantages of biochar and nano-forms of biosorbents, the use of BT and WH in these forms is promising to achieve sustainable heavy metals removal from wastewater. However, more study is needed to confirm preliminary results.

Indexed as

EichhorniaMetals, HeavyWater Pollutants, ChemicalAdsorptionEnvironmental MonitoringHumansTeaWastewaterMetals, HeavyTeaWastewaterWater Pollutants, ChemicalBiocharPolluted wastewaterWastesWastewater treatment

Identifiers

PMID34173877
PMCPMC8233605

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.