Department Of Environmental Science And Technology

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Author: search.filters.author.Kadirvelu K.Subject: search.filters.subject.Helianthus annuus

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    Optimization of cadmium(II) removal from water using sunflower waste carbon-a statistical approach
    (Taylor and Francis Ltd, 2020) Jain M.; Garg V.K.; Paliwal R.; Kadirvelu K.; Chaudhry S.
    In this study, a statistical experimental strategy was used to optimize the Cd(II) adsorption by chemically treated stems of Helianthus annuus (sunflower). The maximum cadmium adsorption was found at 100 mg/L when a dose of 2000 mg/100 ml was applied at pH 6.0. The highest percentage removal obtained using the model was 100%. The F value (17.28), lack-of-fit value (0.09) and coefficient of determination (R2 = 0.939) established the appropriateness of quadratic model. The results of confirmation experiment, i.e. 99.8% removal of Cd(II) by prepared adsorbent under optimized conditions agreed well with the model predictions.