Effectiveness of Green Synthesized Silver Nanoparticles (Ag-Nps) of Delonix Regia Pods in Water Disinfection
Shilpa B S1, Shruthi G2

1Dr. SHILPA B S, Associate Professor, Department of Civil Engineering, Vidyavardhaka College of Engineering, MYSURU.
2SHRUTHI G, UG Student, Department of Environmental Engineering, Vidyavardhaka College of Engineering, MYSURU.
Manuscript received on September 22, 2019. | Revised Manuscript received on October 20, 2019. | Manuscript published on October 30, 2019. | PP: 2543-2547 | Volume-9 Issue-1, October 2019 | Retrieval Number: F8358088619/2019©BEIESP | DOI: 10.35940/ijeat.F8358.109119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: GParticles of sizes between 1 and 100 nanometers are known as nanoparticles. The natural materials like plant leaf extract, bacteria and fungi for the synthesis of silver nanoparticles has numerous benefits. In this scenario, the main objective of this work is to utilize Delonix Regia pod extract for the synthesis of silver nanoparticles (NPs) and check its feasibility as disinfectant. Pod extract prepared was subjected to EDS analysis. Transformed silver NPs are coated onto GAC(1.5mm) and subjected to SEM analyses. Column study was carried to check the disinfecting action of silver NPs for varied contact time by monitoring MPN value. From this research work, it can be concluded as, for pod extract, peak absorbance was found at 360nm. Delonix Regia pod extract transforms into silver nanoparticles moderately to about 4.63-8.85%. Silver nanoparticles are coated onto Activated Carbon, dried and stored for extended period without loss of nanoparticles. At 30min contact time efficiency was found to be 63% and 71 for NP2.5 and NP5 respectively. Green synthesized silver nanoparticles are proved to be moderately effective in disinfecting contaminated water.
Keywords: Delonix Regia, Disinfection, Green synthesis and Silver NPs.