Fixed-bed adsorption of Reactive Orange 84 dye onto activated carbon prepared from empty cotton flower agro-waste

Charola, Samir; Yadav, R. Hiranmai; Das, Prasanta Kumar; Maiti, Subarna

doi:10.1016/j.serj.2018.09.003

Cited by 83 publications

(36 citation statements)

References 42 publications

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“…4(f value of q o is due to the driving force between adsorbate and adsorbent. Similar results were also observed at 10 cm bed height for Fluoride adsorption in the solution [44]. These results revealed that lower the flow rates with higher bed height leads to maximum fluoride uptake on to adsorbent.…”

Section: Thomas Modelsupporting

confidence: 84%

Removal of fluoride from an aqueous solution by batch and column process using activated carbon derived from iron infused Pisum sativum peel: characterization, Isotherm, kinetics study

Sahu

Bhan

Singh

2020

Environmental Engineering Research

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The present study investigated the adsorption efficiency of magnetic activated carbon was synthesized by waste biomass of Pisum sativum (peel) and pyrolysis at 500˚C temperature (MPPAC-500). Derived activated carbon was applied for removal of fluoride from aqueous solution. The MPPAC-500 was characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), zeta potential, X-ray Diffraction (XRD) and Particle Size Analyser. The fluoride sequestration study was performed in both batch and column systems. The batch adsorption study was focused on parameter like, adsorbent dose, contact time, pH and initial fluoride concentrations. The maximum capacity of fluoride removal was qo = 4.71 (mg/g). Freundlich isotherm model (R2 -0.995) obeyed better than Langmuir (R<sup>2</sup> -0.979) model. The RL values observed between 0-1 (RL-0.057) inferred the favourable adsorption. Pseudo-second-order model favoured well than pseudo-first-order in the whole experimental data. In case of column study was performed at two different bed height 5 cm and 10 cm having flow rate of 5 mL/min as well as 10 mL/min. The breakthrough curve and column data were interpreted by Thomas, Adams-Bohart, Yoon-Nelson and Clark model. These finding showed that MPPAC-500 has potential adsorptive capacity for fluoride removal from aqueous solutions in batch and column systems.

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Section: Thomas Modelsupporting

confidence: 84%

Removal of fluoride from an aqueous solution by batch and column process using activated carbon derived from iron infused Pisum sativum peel: characterization, Isotherm, kinetics study

Sahu

Bhan

Singh

2020

Environmental Engineering Research

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“…Similar results were also reported for column adsorption of reactive orange 84 dye by activated carbon. [ 41 ] The model parameters of A–B and Y–N models at varied C i , Q t , and h are presented in Table 2.…”

Section: Adsorption In Fixed Bed Columnmentioning

confidence: 99%

Synthesis, characterization, and adsorption properties of collagen and attapulgite‐filled copolymer biocomposites: Batch and column studies

Choudhury

Ray

2021

Polymer Engineering & Sci

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Several biocomposites were synthesized by copolymerizing hydroxyethyl methacrylate (HEMA) and itaconic acid (IA) at varied molar ratios in the presence of different wt% of collagen (CLG) and attapulgite (APG) clay. The structure and properties of the biocomposite adsorbents were characterized by Fourier transform infrared apectroscopy, nuclear magnetic resonance, X‐ray photo electron spectroscopy, X‐ray diffraction, scanning electron microscope, transfer electron microscopy, energy‐dispersive X‐ray analysis, differential thermal analysis–thermogravimetric analysis, point zero charge analysis, mechanical properties, and pH reversibility tests. The synthesis variables were optimized with a central composite design of response surface methodology (RSM). The biocomposite prepared with an optimized composition of 1.5 wt% CLG, 1.7 wt% APG, and 5:1 molar ratio of HEMA:IA showed an adsorption capacity (Qe, mg/g) of 674.4/602.4 for methylene blue (MB)/Rose Bengal (RB) dye from a feed containing 200 mg/L of MB + RB dye mixture in batch mode. In a fixed bed in column mode, the optimized biocomposite showed a removal% of 82.8/71.3 for 100 mg/L inlet concentration, 20 ml/min flow rate, and 20 mm bed height with a breakthrough time of 23/31 min and a mass transfer coefficient (kmtc × 105 cm/s) of 8.36/7.67 for MB/RB as single dye solution.

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“…Crystal violet (CV) dye was eliminated using modified ginger waste (MGW) [12]. Another study applied activated carbon from empty cotton flower agrowaste to remove Reactive Orange 84 [13]. Dye (Methylene blue and malachite green) was adsorbed by adsorbent (Potato plant waste) [14].…”

Section: Textile Effluent Wastewatermentioning

confidence: 99%

Textile Industry Effluent Treatment Techniques

Adane

Adugna

Alemayehu

2021

Journal of Chemistry

120

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Dyes and other chemicals laden wastewater is a main environmental concern for increasing the textile industries in many parts of the world. Textile industries consume different kinds of manmade dyes or other chemicals and release huge extents of highly polluted water into the environment. This excessive dye laden wastewater has great impacts on photosynthetic activity in aquatic plants and animals, for example, fish. It may also affect human health due to the presence of components like heavy metals and chlorine in manmade dyes. Thus, wastewater effluent from textile industries must be treated before discharge into the water body. Treatment technologies observed in this review paper include biological treatment methods (fungi, algae, bacteria, and microbial fuel cells), chemical treatment methods (photocatalytic oxidation, ozone, and Fenton’s process), and physicochemical treatment methods (adsorption, ion exchange, coagulation, and filtration). This review also includes the hybrid treatment methods and their cost per m3 of treated wastewater analysis. There are alternative wastewater treatments systems at different steps of effluent generated from the textile operational unit recommend in this review work.

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Fixed-bed adsorption of Reactive Orange 84 dye onto activated carbon prepared from empty cotton flower agro-waste

Cited by 83 publications

References 42 publications

Removal of fluoride from an aqueous solution by batch and column process using activated carbon derived from iron infused Pisum sativum peel: characterization, Isotherm, kinetics study

Removal of fluoride from an aqueous solution by batch and column process using activated carbon derived from iron infused Pisum sativum peel: characterization, Isotherm, kinetics study

Synthesis, characterization, and adsorption properties of collagen and attapulgite‐filled copolymer biocomposites: Batch and column studies

Textile Industry Effluent Treatment Techniques

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