Salma Ssouni, Youssef Miyah, Mohammed Benjelloun, Jamal El Addouli, Ibtissam Bouabadi, Fatima Zahra Jawhari, Asep B.D. Nandiyanto, Anissa Lahrichi
Water contamination by organic dyes threatens the environment and public health, leading to a deterioration in water quality and risks to living beings. The search for innovative materials with large specific surface areas, such as chitin, for removing Crystal Violet (CV) and Congo Red (CR) dyes remains a crucial challenge for many industries, particularly textiles. Chitin has been characterized by FTIR, XRD, SEM-EDX, and zero charge point (pHpzc). This study aims primarily to evaluate the effectiveness of chitin as an adsorbent for the depollution of water contaminated by the organic dyes CV and CR. The pH, adsorbent dose, and initial dye concentration were optimized using Box Behnken experimental designs. Adsorption rates on the chitin surface were found to be 82.15% for CR at pH = 2 and 99.47% for CV at pH = 12, both at dyes concentrations of 20 mg L-1 and an adsorbent dose of 1.5 g L-1. In addition, chitin showed outstanding performance in the barley germination test, underscoring its potential applications in agriculture. The ability to recover and regenerate adsorbent is an economic and environmental key feature of this process. © (2024), (University Mohammed Premier Oujda). All rights reserved.
Laboratory of Biochemistry, Faculty of Medicine, Pharmacy and Dentistry, Sidi Mohamed Ben Abdellah University, BP 1893, Km 22, Road of Sidi Harazem, Fez, 30070, Morocco; Ministry of Health and Social Protection, Higher Institute of Nursing Professions and Health Techniques, Fez, Morocco; Laboratory of Materials, Processes, Catalysis, and Environment, Higher School of Technology, Sidi Mohamed Ben Abdellah University, Fez, Morocco; Euro-Mediterranean University of Fez (UEMF), BP. 15, Fez, 300700, Morocco; Ministry of Health and Social Protection, Higher Institute of Nursing Professions and Health Techniques, Annex Meknes, Fez, Morocco; Universitas Pendidikan Indonesia, Indonesia
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