<p>Arsenic contamination in natural water poses a significant risk to human health and the environment. This study evaluates the ability of lanthanum@doped-MOF-808 (La@MOF-808) to remove arsenic from water and wastewater from various locations in Lahore, Pakistan. Across all samples, the average arsenic removal rate for La@MOF-808 exceeded 97.2%, even at low concentration ranges (7.3–78.2&#xa0;ppb). Analysis of physico-chemical parameters reveals that pH and pollutant concentration have influence removal efficiency. Particularly, La@MOF-808 demonstrates a 97.9% removal efficiency in wastewater samples at the highest arsenic concentration (78.2&#xa0;ppb) and, a slight decrease to 95.9% at lower concentrations (7.3&#xa0;ppb). Optimal performance is observed around pH 7.6, suggesting potential chemical complexation mechanisms. These findings underscore La@MOF-808’s significant potential for reducing environmental levels of arsenic below the 10&#xa0;ppb threshold thus advancing environmental remediation strategies and addressing global water quality challenges related to arsenic contamination. It is important to note that this study primarily focused on laboratory-controlled conditions, and further research is needed to evaluate the long-term performance and scalability of La@MOF-808 under diverse real-world environmental conditions.</p> Graphical abstract <p></p>

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Low-Level Arsenic Removal from Drinking and Wastewater Using La@MOF-808 in Lahore, Pakistan

  • Hassan Nawaz,
  • Muhammad Ibrahim,
  • Hirra Anjum,
  • Abid Mahmood,
  • David V. P. Sanchez

摘要

Arsenic contamination in natural water poses a significant risk to human health and the environment. This study evaluates the ability of lanthanum@doped-MOF-808 (La@MOF-808) to remove arsenic from water and wastewater from various locations in Lahore, Pakistan. Across all samples, the average arsenic removal rate for La@MOF-808 exceeded 97.2%, even at low concentration ranges (7.3–78.2 ppb). Analysis of physico-chemical parameters reveals that pH and pollutant concentration have influence removal efficiency. Particularly, La@MOF-808 demonstrates a 97.9% removal efficiency in wastewater samples at the highest arsenic concentration (78.2 ppb) and, a slight decrease to 95.9% at lower concentrations (7.3 ppb). Optimal performance is observed around pH 7.6, suggesting potential chemical complexation mechanisms. These findings underscore La@MOF-808’s significant potential for reducing environmental levels of arsenic below the 10 ppb threshold thus advancing environmental remediation strategies and addressing global water quality challenges related to arsenic contamination. It is important to note that this study primarily focused on laboratory-controlled conditions, and further research is needed to evaluate the long-term performance and scalability of La@MOF-808 under diverse real-world environmental conditions.

Graphical abstract