Efficient removal and stepwise recovery of various heavy metals from water by using calcium carbonate with different activity

Tan, Shuyang; Zhang, Tingting; Cheng, Cheng; Wang, Zhenlei; Li, Haiyang; Zhao, Yunliang

doi:10.1016/j.seppur.2024.129142

Separation and Purification Technology

2025

DOI: 10.1016/j.seppur.2024.129142

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Efficient removal and stepwise recovery of various heavy metals from water by using calcium carbonate with different activity

Shuyang Tan,

Tingting Zhang,

Cheng Cheng

et al.

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Cited by 2 publications

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CTAB-modified alkali-activated binder derived from Favia corals and glass waste: A novel bio-based adsorbent for effective removal of Mn(VII) ions from aqueous solutions

Yacoub,

Saber,

Ali

et al. 2024

Journal of Industrial and Engineering Chemistry

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CTAB-modified alkali-activated binder derived from Favia corals and glass waste: A novel bio-based adsorbent for effective removal of Mn(VII) ions from aqueous solutions

Yacoub,

Saber,

Ali

et al. 2024

Journal of Industrial and Engineering Chemistry

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Synthesis of a Novel Polymer Adsorbent and Its Adsorption of Pb (II) and Cu (II) Ions in Water

Chen,

Zhou

2024

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This study successfully synthesized a polymer adsorbent TOC containing S functional groups through thiophene and oxalyl chloride. The TOC was characterized by IR, molecular weight determination, EDS, SEM, and TG. For Pb (II), the maximum adsorption capacity of TOC can reach 122.7 mg/g (0.593 mmol/g) at pH = 4, 250 min. After adsorption, it can be desorbed with 1.00 mol/L HCl, and the adsorbent can be reused 10 times; For Cu (II), the maximum adsorption capacity of TOC can reach 95.9 mg/g (1.498 mmol/g) at pH = 6, 180 min. After adsorption, it can be desorbed with 0.50 mol/L HNO3, and the adsorbent can be reused 11 times. The adsorption process of TOC on Pb (II) and Cu (II) conforms to the Freundlich model of multi-layer adsorption, and the chemical adsorption process is controlled by pseudo-second-order kinetic reactions.

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Efficient removal and stepwise recovery of various heavy metals from water by using calcium carbonate with different activity

Cited by 2 publications

References 64 publications

CTAB-modified alkali-activated binder derived from Favia corals and glass waste: A novel bio-based adsorbent for effective removal of Mn(VII) ions from aqueous solutions

CTAB-modified alkali-activated binder derived from Favia corals and glass waste: A novel bio-based adsorbent for effective removal of Mn(VII) ions from aqueous solutions

Synthesis of a Novel Polymer Adsorbent and Its Adsorption of Pb (II) and Cu (II) Ions in Water

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