Surface modified bentonite mineral as a sorbent for Pb2+ and Zn2+ ions removal from aqueous solutions

• Autorzy: Selim K.haled A. , Rostom Merit , Youssef Mohhamed A. , Abdel-Khalek Nagui A. , Abdel-Khalek Mohhamed A. , Hassan El-Sayed R. E.

Identyfikatory

DOI

10.37190/ppmp/127833

• Języki publikacji: EN

Abstrakty

EN

Environmental pollution by lead (Pb²⁺) and zinc (Zn²⁺) ions has become an important issue due to its harmful effects on human health and environment. This work aims to evaluate the application of surface modified Egyptian bentonite mineral by acid activation using H₂SO₄ and thermal treatment as an adsorbent to remove lead (Pb²⁺) and zinc (Zn²⁺) ions from aqueous solution. X-ray diffraction (XRD), Fourier Transformed Infrared Spectroscopy (FTIR) and Scanning Electron Microscope (SEM) techniques were used to investigate the modified bentonite. The impact of organic and inorganic dispersants on rheological characteristics of bentonite suspensions was investigated. Adsorption of Pb²⁺ and Zn²⁺ ions using modified bentonite mineral was performed with different adsorbent doses and pH values. Removal efficiencies of lead and zinc are 99.67% and 99%, respectively with adsorbent dose of 25 g/l at pH of 6.2.

Słowa kluczowe

EN

Ca-montmorillonite; adsorption; heavy metals; surface modification; rheology

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2020
• Tom: Vol. 56, iss. 6
• Strony: 145--157
• Opis fizyczny: Bibliogr. 31 poz., rys., tab., wykr., wz.

Twórcy

autor

Selim K.haled A.

• Mineral Beneficiation and Agglomeration Department, Central Metallurgical Research & Development Institute (CMRDI), P.O. Box 87 Helwan, 11722 Cairo, Egypt

autor

Rostom Merit

• Academy of Scientific Research and Technology, ASRT, Cairo, Egypt

autor

Youssef Mohhamed A.

• Mineral Beneficiation and Agglomeration Department, Central Metallurgical Research & Development Institute (CMRDI), P.O. Box 87 Helwan, 11722 Cairo, Egypt

autor

Abdel-Khalek Nagui A.

• Mineral Beneficiation and Agglomeration Department, Central Metallurgical Research & Development Institute (CMRDI), P.O. Box 87 Helwan, 11722 Cairo, Egypt

autor

Abdel-Khalek Mohhamed A.

• Mineral Beneficiation and Agglomeration Department, Central Metallurgical Research & Development Institute (CMRDI), P.O. Box 87 Helwan, 11722 Cairo, Egypt

autor

Hassan El-Sayed R. E.

• Mineral Beneficiation and Agglomeration Department, Central Metallurgical Research & Development Institute (CMRDI), P.O. Box 87 Helwan, 11722 Cairo, Egypt

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