Mustafa Hauwa Mohammed, Hayder Gasim
College of Graduate Studies, Universiti Tenaga Nasional (UNITEN), 43000 Kajang, Selangor Darul Ehsan, Malaysia.
Department of Chemistry, Kaduna State University (KASU), Tafawa Balewa Way, P.M.B. 2339, Kaduna, Nigeria.
Heliyon. 2021 Jan 24;7(1):e06040. doi: 10.1016/j.heliyon.2021.e06040. eCollection 2021 Jan.
The objective of this study was to investigate the performance of different weight of plants in biological treatment of domestic wastewater. Three treatment systems containing 280g (GS1), 140g (GS2) and 70g (GS3) of plants were used for the phytoremediation process. Physicochemical analysis such as pH, colour, chemical oxygen demand (COD), and biological oxygen demand (BOD) of the influent and effluent water samples were performed according to spectrophotometric methods. The outcome of the study demonstrated that the different weight of plants played a significant role in improving the quality of the wastewater samples, in which GS1 removed 96.8% (colour), 91% (BOD), and 82.6% (COD). While up to 88.6% (colour), 87.1% (BOD), and 81.1% (COD) reduction was observed for GS2 treatment systems, and GS3 was efficient in removing 85.5% (colour), 86.1% (BOD), and 68.3% (COD). Also, a pH value of 6.29-7.19, 5.97-7.07, and 6.17-7.42 was obtained from GS1, GS2 and GS3 treatment systems, respectively. Thus, the treatment system with the highest quantity of (GS1) demonstrated better performance compared to the other two systems (GS2 and GS3). The findings of this research can be applied in addressing the goals of sustainable development through the use of green technology to reduce the threat of water pollution in natural water bodies. Perhaps existing and future water scarcity can be resolved through the use of phytoremediation technology.
本研究的目的是调查不同重量的植物在生活污水处理中的性能。三个处理系统分别装有280克（GS1）、140克（GS2）和70克（GS3）的植物，用于植物修复过程。根据分光光度法对进水和出水水样进行了pH值、颜色、化学需氧量（COD）和生化需氧量（BOD）等理化分析。研究结果表明，不同重量的植物在改善废水样本质量方面发挥了重要作用，其中GS1去除了96.8%（颜色）、91%（BOD）和82.6%（COD）。而GS2处理系统的颜色、BOD和COD去除率分别高达88.6%、87.1%和81.1%，GS3能有效去除85.5%（颜色）、86.1%（BOD）和68.3%（COD）。此外，GS1、GS2和GS3处理系统的pH值分别为6.29 - 7.19、5.97 - 7.07和6.17 - 7.42。因此，植物数量最多的处理系统（GS1）比其他两个系统（GS2和GS3）表现出更好的性能。本研究结果可应用于通过使用绿色技术来实现可持续发展目标，以减少自然水体水污染的威胁。或许可以通过使用植物修复技术来解决现有的和未来的水资源短缺问题。
