Conference Papers

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506

Browse

Author: search.filters.author.Bhaskar, S.

Search Results

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Green Synthesis of Bioleached Flyash Iron Nanoparticles (GBFFeNP) Using Azadirachta Indica Leaves and Its Application as Fenton’s Catalyst in the Degradation of Dicamba
    (Springer Science and Business Media Deutschland GmbH, 2021) Bhaskar, S.; Manu, B.; Sreenivasa, M.Y.
    Fly ash made its suitable application in the waste management and remediation application. This article presents the synthesis of nanoiron particles using bioleached fly ash iron and its application as Fenton’s catalyst in the degradation of an herbicide dicamba. Novel isolated bacterial strain Acidithiobacillus Ferrooxidans BMSNITK (MG 271,840) was used to recover iron from fly ash and green synthesis of fly ash iron nanoparticles was successfully carried out using Azadirachta indica. Synthesized iron nanoparticles were characterized with X-ray diffraction and electron microscopy and the catalytic role of bioleached fly ash nanoparticles was evaluated based on the degradation of target pollutant. Hydrogen peroxide and COD were considered as the indicating factors for tracing the reaction progress and degradation resulting 97.81% of dicamba degradation within 90 min. Study confirms the green synthesis of bioleached fly ash iron nanoparticle and its application in Fenton’s oxidation. © 2021, Springer Nature Singapore Pte Ltd.
  • No Thumbnail Available
    Item
    Influence of Ferrous Iron Addition on Silver Catalyzed Bioleaching of Copper from Chalcopyrite using an Isolated Acidithiobacillus Ferrooxidans Strain
    (Grenze Scientific Society, 2023) Bhaskar, S.; Manoj, A.; Nayak, D.M.; Furtado, I.M.; Anchan, D.; Wazir, A.M.
    Shake flask studies on influence of initial ferrous iron on bioleaching of copper from chalcopyrite using novel isolated bacterial strain Acidithiobacillus ferrooxidans BMSNITK17 with and without addition of silver catalyst was conducted and reported. Non-catalysed bioleaching of copper yields about 0.9 g/L of with 16 g/L of initial ferrous iron concentration while Silver catalysed bioleaching of copper from chalcopyrite yields about 1.6 g/L of copper with initial ferrous iron concentration of 4 g/L. Variation of pH, ferrous and ferric iron during the study were recorded and discussed. This study confirms the influence of initial ferrous iron concentration on bioleaching of copper. © Grenze Scientific Society, 2023.