| Comparative Evaluation of Formulation Methods for Emergency Water Treatment Kits: Advantages and Limitations |
| کد مقاله : 1512-IWWA |
| نویسندگان |
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Saeed Iranpour *1، Masoumeh Sajadian2، Reza Alizadeh3، Mahdi Rouzbahani4 1سازمان جهاد دانشگاهی تهران 2سازمان جهاد دانشگاهی تهران ، گروه پژوهشی فرآیندهای شیمیایی 3سازمان جهاد دانشگاهی تهران، گروه فرایندهای شیمیایی 4سازمان جهاد دانشگاهی تهران، گروه فرآیندهای شیمیایی |
| چکیده مقاله |
| Abstract Rapid provision of safe drinking water during emergencies—such as severe floods, earthquakes, civil defence scenarios, and wilderness or mountaineering expeditions—requires point-of-use (POU) treatment systems that are lightweight, grid-independent, simple to operate, and effective against high-turbidity raw waters. This study presents a comprehensive comparative evaluation of four predominant kit platforms: 1) dual-action powder sachets (PAC/chlorinated compounds), 2) single-action halogen disinfectant tablets, 3) hybrid membrane/carbon filtration, and 4) novel in-situ green oxidation systems that generate peracetic acid (PAA) from solid precursors (sodium percarbonate and tetraacetylethylenediamine, TAED). The evaluation focuses on disinfection kinetics, storage stability, and sediment removal. Findings reveal that halogen tablets fail in turbid floodwaters due to their lack of coagulation capability, whereas chlorine-based dual-action sachets suffer severe degradation under elevated ambient storage temperatures and produce harmful halogenated disinfection by-products (DBPs). Portable membrane filters, meanwhile, quickly become clogged when exposed to high silt loads. In contrast, solid-state in situ PAA precursors—supported by domestic pilot-scale expertise in TAED synthesis—demonstrate superior operational resilience: disinfection in under 10 minutes, pH independence across the 6.0–8.5 range, and robust shelf life in solid form. This platform therefore represents a strategic option for disaster management and relief agencies, as well as for water and wastewater utilities responsible for emergency water supply. |
| کلیدواژه ها |
| Emergency, water treatment kits, peracetic acid, TAED, Disinfection. |
| وضعیت: پذیرفته شده برای ارسال فایل های ارائه پوستر |
