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通过通过臭氧化增强的各种原始粘土矿物质的吸附过程来对织废水进行净化:一种建模方法和优化方法

K Hendaoui¹, S Ben Ayed¹, L Mansour²

¹Faculty of Sciences of Bizerte, LR 05/ES09 Laboratory of Applications of Chemistry to Resources and Natural Substances and to the Environment (LACReSNE), Carthage University Zarzouna 7021 Tunisia fadhilaayari@yahoo.fr.

|November 28, 2024

概括

突尼斯的粘土通过吸附有效地去污染了织废水. 将粘土处理与臭氧化相结合,显著提高了色彩的去除,化学氧气需求 (COD) 和总悬浮固体 (TSS).

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

织行业的废水由于持久的色彩和化学污染物,造成了重大环境挑战.
天然吸附剂,如粘土,为废水处理提供了可持续且具有成本效益的解决方案.
臭氧化是一种强大的氧化技术,可以增强污染物降解.

研究的目的:

鉴定三种突尼斯粘土 (Rommana绿色粘土 - RGC,Tabarka白色粘土 - TWC,Medenine红色粘土 - MRC) 对于其在织废水净化方面的潜力.
评估这些粘土的吸附能力,以去除颜色,化学氧气需求 (COD) 和总悬浮固体 (TSS).
研究将粘土吸附与臭氧化相结合的协同效应,以改善废水处理.

主要方法:

根据它们的矿物成分,有三种不同的突尼斯粘土的特征.
使用响应表面方法 (RSM) 和中央复合设计 (CCD) 来优化吸附实验,以确定最佳pH值,粘土剂量和接触时间.
综合吸附-臭氧化过程被评估其在去除色彩,COD和TSS方面的效率.

主要成果:

罗马纳绿色粘土 (RGC) 富含石膏,显示出最高的吸附效率,在最佳条件下达到大约87%的染料去除 (pH ≈ 3.98,7 g/L剂量,89分钟接触时间).
在最佳吸附条件下,RGC去除了86.89%的颜色,57.2%的COD和80.7%的TSS.
综合吸附臭氧化工艺显著提高了去除效率,达到超过98%的颜色,超过70%的COD,超过88%的TSS,符合突尼斯河流排放标准.

结论:

突尼斯的粘土,特别是RGC,是用于织废水净化的有效吸附剂.
粘土吸附和臭氧化的协同应用为织废水处理提供了一种高效的方法.
经过处理的废水质量适合于盐水工厂的灌,提供了有价值的再利用选择.

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