The Photocatalytic Activity of Green Zinc Oxide Nanoparticles in The Treatment of Aerobically Palm Oil Mill Effluent

Dilaeleyana Abu Bakar Sidik, N. Hairom, Aniq Ikhmal Rozman, Mohamad Jauhar Shaqili Johari, Aida Muhammad
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Abstract

Traditional treatment of aerobically palm oil mill effluent (A-POME) is incapable of removing the colour and organic load that does not exceed the discharge standard limit to the stream channel. Green synthesis nanoparticles (NPs) provide a significant potential for substantial performance in the photocatalytic degradation of high-strength wastewater. Therefore, the current project's goal is to investigate the photocatalytic degradation performance of A-POME in the addition of green Zinc Oxide Cymbopogon Citratus (ZnO–CC) NPs in terms of chemical oxygen demand (COD), turbidity, and colour removal. The outcomes showed that pH 8 and a ZnO-CC NPs loading of 0.3g/L was ideal for the photocatalytic degradation of A-POME with a significant percentage reduction of turbidity (68.03%), colour (48.11%), and COD (75.4%). The equilibrium data revealed a better fit Langmuir-Hinshelwood models with higher R2 and K values of 0.9906 and 0.0225, respectively. Increased ZnO–CC NPs loading in alkaline medium aided in the breakdown of A-POME pollutants by increasing the surface area accessible for UV light adsorption during the photocatalytic process. Thus, the finding from this study can assist the palm oil mill sector in improving A-POME treatment to provide high-quality treated effluent.
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绿色氧化锌纳米颗粒处理好氧棕榈油厂废水的光催化活性
传统的好氧处理棕榈油厂废水(A-POME)无法去除不超过排放标准限制的颜色和有机负荷。绿色合成纳米颗粒(NPs)在光催化降解高强度废水方面具有巨大的潜力。因此,当前项目的目标是研究A-POME在添加绿色氧化锌Cymbopogon Citratus (ZnO-CC) NPs时在化学需氧量(COD)、浊度和去色方面的光催化降解性能。结果表明,pH为8,ZnO-CC NPs负载为0.3g/L是光催化降解a - pome的理想条件,其浊度(68.03%),颜色(48.11%)和COD(75.4%)显著降低。均衡数据显示Langmuir-Hinshelwood模型拟合较好,R2较高,K值分别为0.9906和0.0225。增加ZnO-CC NPs在碱性介质中的负载,通过增加光催化过程中紫外光吸附的表面积,有助于A-POME污染物的分解。因此,本研究的发现可以帮助棕榈油厂部门改进A-POME处理,以提供高质量的处理废水。
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来源期刊
Songklanakarin Journal of Science and Technology
Songklanakarin Journal of Science and Technology Multidisciplinary-Multidisciplinary
CiteScore
1.10
自引率
0.00%
发文量
0
审稿时长
25 weeks
期刊介绍: Songklanakarin Journal of Science and Technology (SJST) aims to provide an interdisciplinary platform for the dissemination of current knowledge and advances in science and technology. Areas covered include Agricultural and Biological Sciences, Biotechnology and Agro-Industry, Chemistry and Pharmaceutical Sciences, Engineering and Industrial Research, Environmental and Natural Resources, and Physical Sciences and Mathematics. Songklanakarin Journal of Science and Technology publishes original research work, either as full length articles or as short communications, technical articles, and review articles.
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