Batch and column mode removal of the turquoise blue (TB) over bio-char based adsorbent from Prosopis Juliflora: Comparative study

• Published in: Chemosphere (Oxford) 2021-05, Vol.271, p.129426, Article 129426
• Main Authors: Ramesh, Pamila, Padmanabhan, Vasanthi, Arunadevi, R., Sudha, P.N., El-Zaher M.A. Mustafa, Abd, Al-Ghamdi Ahmed, Abdullah, Alajmi, Amal H., Elshikh, Mohamed Soliman
• Format: Article
• Language: English
• Subjects: Adsorption; Biochar; Charcoal; Hydrogen-Ion Concentration; Kinetics; Organic Chemicals; Prosopis; Prosopis Juliflora; Turquoise blue; Water Pollutants, Chemical - analysis; Water Purification
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/j.chemosphere.2020.129426

Biochar, created from Prosopis Juliflora (B-PJ) through an ionic polymerization route, was utilized as a sorbent to remediate turquoise blue (TB). The biochar was described utilizing Fourier change infrared spectroscopy. The effects of operating factors such as flow rate, bed depth, concentration, and solution pH were investigated in column mode. Thomas, Yoon-Nelson, and Adams-Bohart models were applied to examine the experimental column data and the correlation between operating factors. The greatest adsorption limit of the BPJ was discovered utilizing 200 mg/L of the adsorbate, B-PJ portion 3 g, at a contact time of 150 min and pH of 6. The adsorption energy and harmony isotherms were all around spoken to by the pseudo-second-request model and the Langmuir model, separately. The most extreme adsorption limit acquired from the Langmuir isotherm model was 0.005173 mg/g. The test energy information dissected utilizing various models featured that the pseudo-second request motor model created a prevalent depiction of the trial information. The adsorption energy followed a pseudo-second-request active model with high connection coefficients (R2 ˃0.98). These outcomes showed that alginate immobilized biochar is earth well-disposed locally accessible, powerful and practical adsorbent for the expulsion of TB color from modern wastewaters. [Display omitted] •Bio-char adsorbent from P. Juliflora used to remove turquoise blue (TB).•FT-IR spectra were utilized to decide the nearness of different practical gatherings.•Yoon Nelson, Thomas and Adam Bohart models created for structuring.•3 g extreme adsorption in the alginate immobilized biochar at 99%.