Ben Amor Ilham, Hemmami Hadia, Laouini Salah Eddine, Zeghoud Soumeia, Benzina Mourad, Achour Sami, Naseef Abanoub, Alsalme Ali, Barhoum Ahmed
Department of Process Engineering and Petrochemical, Faculty of Technology, University of El Oued, El Oued 39000, Algeria.
Renewable Energy Development unit in Arid Zones (UDERZA), University of El Oued, El Oued 39000, Algeria.
Materials (Basel). 2023 Jul 17;16(14):5049. doi: 10.3390/ma16145049.
Insects are a readily available source of chitosan due to their high reproductive rates, ease of breeding, and resistance to changes in their ecosystem. This study aimed to extract chitosan from several widespread insects: (CS-BL), (CS-PF), and (CS-MD). The study was also extended to using the obtained chitosans in removing methylene blue dye (MB) from wastewater. The source of the chitosan, the initial concentration of MB dye, and the reaction time were chosen as the working parameters. The experiments were designed using a central composite design (CCD) based on the dye removal efficiency as the response variable. The experimental work and statistical calculation of the CCD showed that the dye removal efficiency ranged from 35.9% to 88.7% for CS-BL, from 18.8% to 47.1% for CS-PF, and from 10.3% to 29.0% for CS-MD at an initial MB concentration of 12.79 mg/L. The highest methylene blue dye removal efficiency was 88.7% for CS-BL at a reaction time of 120 min. This indicates that the extraction of chitosan from insects () and its application in dye removal is a promising, environmentally friendly, economical, biodegradable, and cost-effective process. Furthermore, the CCD is a statistical experimental design technique that can be used to optimize process variables for removing other organic pollutants using chitosan.
由于昆虫繁殖率高、易于养殖且对生态系统变化具有抗性，因此昆虫是壳聚糖的一个容易获得的来源。本研究旨在从几种广泛分布的昆虫中提取壳聚糖：（CS-BL）、（CS-PF）和（CS-MD）。该研究还扩展到将获得的壳聚糖用于去除废水中的亚甲基蓝染料（MB）。选择壳聚糖的来源、MB染料的初始浓度和反应时间作为工作参数。以染料去除效率作为响应变量，采用中心复合设计（CCD）进行实验设计。CCD的实验工作和统计计算表明，在初始MB浓度为12.79mg/L时，CS-BL的染料去除效率为35.9%至88.7%，CS-PF为18.8%至47.1%，CS-MD为10.3%至29.0%。在120分钟的反应时间下，CS-BL对亚甲基蓝染料的去除效率最高，为88.7%。这表明从昆虫中提取壳聚糖（）及其在染料去除中的应用是一个有前景的、环境友好的、经济的、可生物降解的且具有成本效益的过程。此外，CCD是一种统计实验设计技术，可用于优化使用壳聚糖去除其他有机污染物的工艺变量。
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