Cited by 493Adsorption and biosorption for pollutant removalEnvironmental remediation with nanomaterialsCoagulation and Flocculation Studies

Mechanisms and reutilization of modified biochar used for removal of heavy metals from wastewater: A review

Wang, Li, Wang, Yujiao, Ma, Fang, Tankpa, Vitus, Bai, Shanshan, Guo, Xiaomeng, Wang, Xin·2019·Science of The Total Environment

Abstract

Heavy metals (HMs) pose serious threat to both human and environmental health and therefore, effective and low-cost techniques to remove HMs are urgently required. Because HMs are difficult to be biodegraded and transformed, adsorption is a most promising treatment method in recent times. Biochar (BC), a low-cost and sustainable adsorbent material, has recently attracted much research attention due to its broad application prospects. While BC has many merits, it has a lower HMs adsorption efficiency than traditional activated carbon, limiting its practical applications. Furthermore, the HMs retained by BC are difficult to be desorbed, making the used sorbent material hazardous wastes if not well disposed of under natural conditions. Therefore, it is critical to seek effective surface modifications for BC, to improve its ability to HMs removal ability and the recyclability of BC loaded with HMs. This review represents and evaluates the reported modification methods for BC, the corresponding HMs removal mechanisms and the potential for reutilization of BC loaded with HMs. This review provides a basis for the effective practical application of BC in the treatment of HMs containing wastewater.

Integrity signals

Registry

Crossref · 10.1016/j.scitotenv.2019.03.011

Cites

142 of 142 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

1 retracted

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Wang, L., Wang, Y., Ma, F., Tankpa, V., Bai, S., Guo, X., & Wang, X.
Affiliations
Harbin Institute of Technology (CN)
Corresponding author
Wang, Li
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2019-06
Volume
668
Pages
1298-1309
ISSN
0048-9697 (ISSN-L)
OpenAlex
W2919822858
Cited by
493
References
142
Citations by year
2026: 44 · 2025: 56 · 2024: 75 · 2023: 64 · 2022: 74 · 2021: 89 · 2020: 75 · 2019: 16
FWCI
3.62
Type
journal article
Language
en
Open access
closed
Locations
  • The Science of The Total Environment (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • State Key Laboratory of Urban Water Resource and Environment (2018DX08)
  • National Basic Research Program of China (2016YFC0401105)
  • Harbin Institute of Technology
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
  • Physical Sciences › Environmental Science › Water Science and Technology › Coagulation and Flocculation Studies
Keywords
biochar, heavy metal removal, wastewater treatment, surface modification, adsorption mechanism, heavy metal desorption, low-cost adsorbent, sorbent recycling
MeSH terms
Adsorption, Charcoal, Surface Properties, Water Pollutants, Chemical, Water Purification, Metals, Heavy, Recycling, Wastewater

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review