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The discharge of cobaltCobalt(Ⅱ)-containing wastewater from the metallurgical industry poses potential risks to both ecological environments and human health. In this study, a novel silica-based adsorbent (SiO2-POOHSiO-POOH) was synthesized via chemical modificationModification, and its performance for the removal of Co(Ⅱ) from metallurgical wastewaterMetallurgical wastewater was systematically investigated. Key parameters influencing the removal process, including solution pH, initial Co(Ⅱ) concentration, and adsorbent dosage, were examined. It was found that pH not only regulates the chemical speciation distribution of Co(Ⅱ) but also significantly affects the adsorptionAdsorption process. Under optimized conditions (pH = 8.0, initial Co(Ⅱ) concentration = 15 mg/L, adsorbent dosage = 1000 mg/L), the Co(Ⅱ) removal efficiency achieved by SiO2-POOHSiO-POOH reached 34.89%. The adsorptionAdsorption mechanism was further elucidated through isotherm analysis complemented by Visual MINTEQ software simulations. This study demonstrates the potential application value of SiO2-POOHSiO-POOH for treating metallurgical effluents and provides a novel approach for the remediation of cobaltCobalt-containing wastewater.

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Removal of Cobalt(II) from Metallurgical Wastewater Using a Novel SiO2-POOH Silica-Based Adsorbent

  • 会议论文

  • 发表日期：

    2026年

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  • Yufei Xie,
  • Wenjuan Wang,
  • Yanfang Huang

摘要

The discharge of cobaltCobalt(Ⅱ)-containing wastewater from the metallurgical industry poses potential risks to both ecological environments and human health. In this study, a novel silica-based adsorbent (SiO2-POOHSiO-POOH) was synthesized via chemical modificationModification, and its performance for the removal of Co(Ⅱ) from metallurgical wastewaterMetallurgical wastewater was systematically investigated. Key parameters influencing the removal process, including solution pH, initial Co(Ⅱ) concentration, and adsorbent dosage, were examined. It was found that pH not only regulates the chemical speciation distribution of Co(Ⅱ) but also significantly affects the adsorptionAdsorption process. Under optimized conditions (pH = 8.0, initial Co(Ⅱ) concentration = 15 mg/L, adsorbent dosage = 1000 mg/L), the Co(Ⅱ) removal efficiency achieved by SiO2-POOHSiO-POOH reached 34.89%. The adsorptionAdsorption mechanism was further elucidated through isotherm analysis complemented by Visual MINTEQ software simulations. This study demonstrates the potential application value of SiO2-POOHSiO-POOH for treating metallurgical effluents and provides a novel approach for the remediation of cobaltCobalt-containing wastewater.