| Comparative Evaluation of the Performance, Stability, and Regenerability of Natural, Iron-Modified, Magnetic, and Synthetic Zeolites in Arsenic Removal from Water: A Framework for Selecting a Suitable Treatment Adsorbent |
| کد مقاله : 1685-IWWA |
| نویسندگان |
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سید محمد متین میرمعصومی *1، سید مهدی رفیعائی2 1سرباز نخبه آب و فاضلاب اصفهان 2دانشگاه صنعتی اصفهان وزارت علوم |
| چکیده مقاله |
| Arsenic contamination of water sources is a significant challenge in water treatment due to the element's high toxicity and its associated environmental and health implications. Among the various remediation techniques, adsorption has garnered attention for its process simplicity, the availability of suitable mineral materials, and its scalability within treatment systems. Zeolites characterized by their porous structure, relative stability, and ion-exchange properties offer significant potential for water treatment applications; however, their efficacy in arsenic removal depends on factors such as structural type, surface characteristics, and modification methods. This study employs a comparative review approach to evaluate the performance of four categories of adsorbents raw natural zeolite, iron-modified natural zeolite, magnetic zeolite, and synthetic zeolite in removing arsenic from water. This review examines parameters such as adsorption capacity, removal efficiency, the influence of pH and arsenic speciation, the role of competing ions, structural stability, iron leaching, regeneration and reusability, and the ease of adsorbent separation. Furthermore, to ensure a valid comparison, variations in experimental conditions across previous studies including initial arsenic concentration, adsorbent dosage, contact time, and water chemistry will be taken into account when interpreting the results. A distinctive feature of this article is the simultaneous evaluation of treatment performance alongside adsorbent stability and recovery considerations, aiming to identify the advantages, limitations, and optimal application conditions for each category. This analysis is expected to clarify the limitations of directly comparing published results while providing a scientific basis for selecting suitable adsorbents and designing future experimental studies. |
| کلیدواژه ها |
| Arsenic, water treatment, natural zeolite, iron-modified zeolite, magnetic zeolite, synthetic zeolite |
| وضعیت: پذیرفته شده برای ارسال فایل های ارائه پوستر |
