Cited by 87Adsorption and biosorption for pollutant removalEnvironmental remediation with nanomaterialsCoagulation and Flocculation Studies

Adsorption performance of Ni(II) by KOH-modified biochar derived from different microalgae species

Tan, Ling, Nie, Yudong, Chang, Haixing, Zhu, Liandong, Guo, Kehong, Ran, Xiongwei, Zhong, Nianbing, Zhong, Dengjie +2 more·2024·Bioresource Technology

Abstract

Microalgae biochar is potential adsorbents to remove heavy metals from wastewater due to abundant functional groups, high porosity and wide sources, but performance is not fully developed since it depends on microalgae species attributing to distinct morphology and biomass compositions. Here, two microalgae species Chlorella Pyrenoidosa and Scenedesmus Obliquus were used for biochar preparation via KOH-modification, biochar properties and their influences on Ni(II) adsorption were investigated. Ni(II) adsorption performances responding to biochar properties and operating conditions were upgraded via progressive optimization and response surface methodology. Together, adsorption isotherms and kinetics were analyzed to obtain significant factors for Ni(II) removal. As results, 100 % of Ni(II) removal was achieved under 100 mg/L initial Ni(II) concentration as pH was higher than the biochar zero-charge point of 6.87 with low biochar dosage (0.5 g/L), which provides an efficient approach for heavy metal removal from wastewater with microalgae biochar.

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Crossref · 10.1016/j.biortech.2023.130287

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Authors
Tan, L., Nie, Y., Chang, H., Zhu, L., Guo, K., Ran, X., Zhong, N., Zhong, D., Xu, Y., & Ho, S.-H.
Affiliations
  • Wuhan University (CN)
  • Chongqing University of Technology (CN)
  • Harbin Institute of Technology (CN)
Corresponding author
Chang, Haixing
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2024-02
Volume
394
Pages
130287
ISSN
0960-8524 (ISSN-L)
OpenAlex
W4390534715
Cited by
87
References
34
Citations by year
2026: 34 · 2025: 32 · 2024: 21
FWCI
10.02
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
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
nickel adsorption, KOH modification, Chlorella pyrenoidosa, Scenedesmus obliquus, heavy metal removal, wastewater treatment, adsorption isotherms, adsorption kinetics, pH effect, biochar dosage, response surface methodology
MeSH terms
Adsorption, Charcoal, Chlorella, Kinetics, Water Pollutants, Chemical, Metals, Heavy, Microalgae, Wastewater

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