Water Practice and Technology (Mar 2024)
Harnessing the potential of zinc oxide nanoparticles from Strychnos potatorum seeds impregnated with activated carbon for an effective removal of fluoride in deep soil water
Abstract
Fluoride (F−) contamination in global water sources is a growing concern, prompting the need for innovative solutions. This explores a novel method using zinc oxide nanoparticle-activated carbon (ZnO-NP/AC) composite for efficient fluoride removal from deep soil water, aiming to evaluate its effectiveness in attracting fluoride contaminants. The focus is on treatment of water sample collected from Dharmapuri, Tamil Nadu, using green synthesis method for ZnO-NP/AC column filter. Employed an exclusive column adsorption method, investigated on physiochemical parameters in water before and after running the column. Fluoride concentration and TDS where significantly harnessed in water after running the green synthesis composite column filter. Characterization of green synthesized nanoparticles of Strychnos potatorum seed powder synthesis with ZnO NPs. Green synthesis successes were confirmed in two ways; one way is UV-visible spectrophotometer technique in depth quantity peak and another one is graphically peak from SEM, density and crystalline structure in XRD techniques. Column composite with S.potatorum ZnO-AC NPs has removed fluoride efficiently (80.5%) at range of 20 g/L for a contact time of 60 minutes, surpassing World health organization (WHO) guidelines for safe drinking water. In conclusion ZnO-AC NPs composite is a sustainable and cost-effective method for effective removal of fluoride contaminants from deep soil water, addressing a pressing global issue. HIGHLIGHTS Sustainable and eco-friendly approach for synthesizing zinc oxide nanoparticles.; Composite coating enhances activated carbon defluoridation capacity.; Improved defluoridation efficiency was observed compared to conventional methods.; Cost-effective and accessible solution for fluoride removal.; Contribution to water quality improvement and reducing health risk.;
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