Utilization of nano-alumina and activated charcoal for phosphate removal from wastewater

Mor, Suman; Chhoden, Kalzang; Negi, Pooja; Ravindra, Khaiwal

doi:10.1016/j.enmm.2016.11.006

Cited by 33 publications

(22 citation statements)

References 55 publications

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“…An isotherm adsorption model is used to fit the obtained experiment data, predict the adsorption parameters and compare the adsorbent behavior for different experiment conditions. As usual, Langmuir, Freundlich and Dubinin–Radushkevich (D‐R) isotherms were applied to analyze the results of experiments (Figure ).…”

Section: Resultsmentioning

confidence: 99%

Utilization of industrial waste as a novel adsorbent: Mono/competitive adsorption of chromium(VI) and nickel(II) using diatomite waste modified by EDTA

Sha

Fan

2017

Applied Organom Chemis

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The adsorption of Cr(VI) and Ni(II) using ethylenediaminetetraacetic acidmodified diatomite waste (EDTA-DW) as an adsorbent in single and binary systems was investigated. The EDTA-DW was characterized using various analytical techniques, including Fourier transform infrared spectroscopy, thermogravimetric analysis, Brunauer-Emmett-Teller measurements, X-ray diffraction, scanning electron microscopy and energy-dispersive spectrometry.The adsorption experiment was conducted by varying pH, adsorbent dosage, initial concentration and temperature. In the single system, the sorption data for Cr(VI) fitted the Langmuir isotherm, but the Ni(II) adsorption data fitted well the Freundlich isotherm. The maximum sorption capacity of Cr(VI) and Ni(II) was 2.9 mg g −1 at pH = 3 and 3.64 mg g −1 at pH = 8, respectively. The kinetic data for both Cr(VI) and Ni(II) followed well the pseudo-second-order kinetic model in single and binary systems. Meanwhile, the extended Langmuir and extended Freundlich multicomponent isotherm models were found to fit the competitive adsorption data for Cr(VI) and Ni(II). In addition, in the binary system, the existence of Ni(II) hindered the adsorption of Cr(VI), but the presence of Cr(VI) enhanced the removal of Ni(II). This study provides some realistic and valid data about the usage of modified diatomite waste for the removal of metal ions.

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Section: Resultsmentioning

confidence: 99%

Utilization of industrial waste as a novel adsorbent: Mono/competitive adsorption of chromium(VI) and nickel(II) using diatomite waste modified by EDTA

Sha

Fan

2017

Applied Organom Chemis

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“…42 The Temkin constant b was related to the heat of adsorption, and its values were positive for all temperatures (b ¼ 321.84 J mol À1 at 293 K), which also conrms the fact that adsorption of phosphate onto La 0.005 @Fe/C was endothermic process. 43 3.3.3 Thermodynamic analysis. Thermodynamic parameters for phosphate adsorption onto La 0.005 @Fe/C were evaluated at 293 K, 303 K, 313 K and 323 K using eqn (10) and (11).…”

Section: Effect Of Contact Timementioning

confidence: 99%

Facile synthesis of novel 3D flower-like magnetic La@Fe/C composites from ilmenite for efficient phosphate removal from aqueous solution

et al. 2019

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“…All experiments were executed at 258C except the study related to effect of temperature. Various parameters like initial phosphate concentration (10-30 mg/L), contact time (10-300 min), pH (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12), temperature (20-508C), and adsorbent dose (1-7 g/L) were investigated for phosphate removal from aqueous solutions on nano-alumina. Batch experiments were conducted in 100 mL Erlenmeyer flask by mixing appropriate adsorbent dose at fixed shaking speed of incubator and temperature.…”

Section: Batch Studiesmentioning

confidence: 99%

Phosphate removal from aqueous solutions by nano‐alumina for the effective remediation of eutrophication

Yadav

Kumar

Kapur

et al. 2018

Env Prog and Sustain Energy

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Excessive phosphate effluent discharged in the surface water source rush to eutrophication. Consecutively this disturbs the water quality and aquatic ecosystem, due to the depletion of dissolved oxygen. Reduced oxygen level in water bodies affects aquatic life and decreases biodiversity. The present investigation emphasized the phosphate adsorption over nano‐alumina. Surface characteristics of the adsorbents, BET, FTIR, XRD, TEM, and SEM were analyzed to reveal the phosphate adsorption mechanisms. The adsorption isotherms, kinetics, pH effect were observed in batch experiments. The pHpzc value of nano‐alumina adsorbent was found as 8.1. The maximum phosphate adsorption was found to be 98.75% at contact time of 90 min and pH 6. Different models, e.g., Langmuir, Freundlich, Temkin, and Dubinin‐Radushkevich were used for isotherm study. The kinetic data were tested by pseudo‐first order and second order models. An attempt was made to regenerate the spent adsorbent for reuse in the adsorption process. Low cost and high capability of nano‐alumina make it feasible to utilize as cost‐effective phosphate remediation from wastewater. © 2018 American Institute of Chemical Engineers Environ Prog, 38: S77–S85, 2019

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Utilization of nano-alumina and activated charcoal for phosphate removal from wastewater

Cited by 33 publications

References 55 publications

Utilization of industrial waste as a novel adsorbent: Mono/competitive adsorption of chromium(VI) and nickel(II) using diatomite waste modified by EDTA

Utilization of industrial waste as a novel adsorbent: Mono/competitive adsorption of chromium(VI) and nickel(II) using diatomite waste modified by EDTA

Facile synthesis of novel 3D flower-like magnetic La@Fe/C composites from ilmenite for efficient phosphate removal from aqueous solution

Phosphate removal from aqueous solutions by nano‐alumina for the effective remediation of eutrophication

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