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Cited by 16Adsorption and biosorption for pollutant removalPhosphorus and nutrient managementEnvironmental remediation with nanomaterials

The DOI matches its Crossref record, with a small difference in title or year.

Adsorption of Pb(II) and Cd(II) ions onto modified biogenic slaughterhouse waste: equilibrium and kinetic analysis

Ngueagni, P. Tsopbou, Kumar, P. Senthil, Woumfo, E. Djoufac, Prasanth, S. M.·2022·International Journal of Environmental Analytical Chemistry
DOI 10.1080/03067319.2020.1784409
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Abstract

Hydroxyapatites are biocompatible and noteworthy low-cost adsorbent directly produced by calcinatedbiogenic materials with different structures and physico-chemical properties. In this study, adsorption of Pb(II) and Cd(II) onto mesoporous and macroporous hydroxyapatites thermally extracted from cattle horn core was investigated in batch method. The obtained hydroxyapatites were characterised by scanning electron microscopy, the porosity was investigated via nitrogen adsorption-desorption, and elemental map has revealed their surface composition. A decrease of porosity of 0.4272, 0.3671, and 0.0052 cm3 g−1for P400, P600 and P1100, respectively, and a homogeneous distribution of Ca, P, O, C, Zn and Mg have been observed. Optimisation parameters such as adsorbent dosage, pH, initial concentration, contact time, and temperature were then evaluated to reach the maximum adsorption capacity. Hydroxyapatites obtained at lower temperature have shown a higher affinity for Pb(II) removal rather than Cd(II). Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms were used to describe the equilibrium data. Equilibrium was best described by Langmuir isotherm model, with maximum estimated adsorption capacities of 256.41 and105.26 mg/g for Pb(II) and Cd(II), respectively, for P400. Maximum removal efficiency at pH 6 was observed, concomitant with a fast adsorption equilibrium attended at around 45 min. Furthermore, Lagergen pseudo-second-order model exhibited the best correlation with the adsorption data, suggesting chemisorption as the rate-limiting step of the process. Thermodynamically, overall parameters revealed an exothermic, spontaneous, feasible, and favourable uptake of the aforementioned heavy metal at a lower temperature in nature. Adsorption/desorption up to four cycles has been obtained with a regeneration above 96% for each adsorbent. These findings concluded that hydroxyapatites from slaughterhouse waste are an eco-friendly, promising and potentially reused adsorbent for the removal of heavy metal in practical purposes.

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  • A systematic comparison of biochars derived from high-silica agricultural residues, high-lignin woody biomass, and high-ash/mineral animal waste under the same pyrolysis conditions is still lacking.

    “Although some studies have been conducted, a systematic comparison of biochars derived from different feedstocks such as high-silica agricultural residues, high-lignin woody biomass and high-ash/mineral animal waste under the same pyrolysis conditions is still lacking [2] .”

    From A Comparative Study on the Adsorption Performance and Mechanisms of Different Biochar Materials for Heavy Metal Ions in Water (2026) · cites this paper as [2]

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Metadata

Authors
Ngueagni, P. T., Kumar, P. S., Woumfo, E. D., & Prasanth, S. M.
Affiliations
  • Université de Yaoundé I (CM)
  • Sri Sivasubramaniya Nadar College of Engineering (IN)
Corresponding author
  • Kumar, P. Senthil
  • Woumfo, E. Djoufac
ORCID
Venue
International Journal of Environmental Analytical Chemistry
Publisher
Informa UK Limited
Published
2020-06-29
Volume
102
Issue
16
Pages
4344-4363
ISSN
  • 0306-7319 (ISSN-L)
  • 1029-0397
DOI
10.1080/03067319.2020.1784409
OpenAlex
W3040565640
Cited by
16
References
0
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 3 · 2022: 2 · 2021: 4 · 2020: 1
FWCI
0.77
Type
journal article
Language
en
Open access
closed
Locations
International Journal of Environmental & Analytical Chemistry (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Phosphorus and nutrient management
  • Physical Sciences › Environmental Science › Environmental Engineering › Environmental remediation with nanomaterials
Keywords
lead removal, cadmium removal, heavy metal adsorption, hydroxyapatite, slaughterhouse waste, low-cost adsorbent, adsorption isotherms, adsorption kinetics, adsorption thermodynamics, adsorbent regeneration, heavy metal wastewater treatment

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