Biosorption of hexavalent chromium from aqueous solutions by Catla catla scales: Equilibrium and kinetics studies

Kondapalli, Srividya; Mohanty, Kaustubha

doi:10.1016/j.cej.2009.08.024

Cited by 125 publications

(49 citation statements)

References 24 publications

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“…0.1 N HCl found to be better for desorption of chromium (VI) for H. verticillata, 0.1 N HCl > 0.1 N HNO 3 > 0.1 N H 2 SO 4 whereas 0.1 N HNO 3 showed better desorption of adsorbed heavy metal in order of 0.1 N HNO 3 > 0.1 N H 2 SO 4 . > 0.1 N HCl with A. filliculoides and percentage of desorption was not in the diffusion of heavy metal ions towards the biosorbent surface .These outcomes can well be associated with the fact that the agitation speed in the range of 150-250 rpm is sufficient enough for making the surface binding sites available for heavy metal uptake for both the biosorbents (Srividya & Mohanty, 2009). Therefore, 250 rpm was chosen as the optimum agitation speed for both the biosorbent.…”

Section: Effect Of Temperaturementioning

confidence: 99%

Comparative analysis of floating and submerged macrophytes for heavy metal (copper, chromium, arsenic and lead) removal: sorbent preparation, characterization, regeneration and cost estimation

Bind¹,

Goswami²,

Prakash³

2018

Geology, Ecology, and Landscapes

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In this study, a comparative evaluation of floating and submerged macrophytes was performed. Azolla filiculoides (free floating) and Hydrilla verticillata (submerged) aquatic macrophytes were utilized for arsenic, copper, chromium and lead removal from the respective metallic ion solutions. Batch experiments were performed initially with optimization of different physical parameters viz., pH, initial heavy metal concentration, biosorbent dosage, contact time, temperature and agitation speed. Submerged (Hydrilla verticillata) had depicted better removal efficiency in comparison to the floating macrophyte (Azolla filiculoides). Field emission scanning electron microscopy equipped with energy dispersive spectroscopy and Fourier transform infrared spectroscopy analysis was performed for the characterization of the metal loaded biosorbents. Biosorption of the respective heavy metal was clearly depicted in the FESEM-EDX spectrum, although not much change in the morphology of the biosorbents were examined. FTIR spectra of the biosorbents obtained after the experiments confirmed the involvement of C-H bend, -CH 2 -(C=O), N-H, -C-O, R 2 -C= bending and -C-C=O on the biomass. Furthermore, the biosorbent regeneration followed by heavy metal biosorption confirmed the reusability of the prepared biosorbent for at least two consecutive cycles without much significant change in the heavy metal biosorption capacity.

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Section: Effect Of Temperaturementioning

confidence: 99%

Comparative analysis of floating and submerged macrophytes for heavy metal (copper, chromium, arsenic and lead) removal: sorbent preparation, characterization, regeneration and cost estimation

Bind¹,

Goswami²,

Prakash³

2018

Geology, Ecology, and Landscapes

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“…Villanueva-Espinosa et al (2001) found that the power law model can be used to predict the uptake rate for the various metal ions. The pseudo second order kinetic model gave good fit to the biosorption system studied by Nadeem et al (2008) and Srividya and Mohanty (2009).…”

Section: Introductionmentioning

confidence: 99%

“…Nadeem et al (2008) and Rahaman et al (2008) investigated removal of lead and arsenic by scales of Labeo rohita and Atlantic cod respectively. Scales of Catla catla fish has been used by Srividya and Mohanty (2009) for Cr (VI) removal at low pH.…”

Section: Introductionmentioning

confidence: 99%

Biomass characterisation and adsorption mechanism of Cu (II) biosorption onto fish (Catla catla) scales

Das

Bhowal

Datta

2016

IJEE

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This study focused on the effect of various experimental parameters like adsorption kinetics, effects of pH, temperature, initial Cu(II), biosorbent dose and agitator speed on biosorption of Cu (II) from aqueous solution onto Catla catla fish scales. Analysis of Fourier-transform infrared (FTIR) spectrum, scanning electron microscopy (SEM) images and energy-dispersive X-ray (EDX) spectroscopy suggested that both organic functional groups and inorganic constituent take part in the Cu (II) uptake process. Both the linear and nonlinear forms of the Langmuir and Freundlich adsorption isotherm models (at low concentration) predicted the equilibrium adsorption isotherm data fairly well. The maximum Cu (II) adsorption capacity of fish scale was determined to be 79.35 mg/g at 40°C and pH 5.5 by nonlinear regression. A mathematical model developed assuming the adsorption process to be diffusion controlled gave satisfactory fit to the experimental batch kinetic data.

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“…Biosorbent with aqueous solution was agitated at 125 rpm [12]. The samples were then centrifuged at 1400 rpm within five minutes.…”

Section: Experimental Design In Batch Study For Optimization Of Phmentioning

confidence: 99%

Optimization of pH in Ammonia, Heavy Metals, and Chlorophyll-a Removal by using Electric Arc Furnace Slag and Activated Carbon Cassava Peel

Zayadi¹,

Ling²,

Othman³

et al. 2017

MATEC Web Conf.

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Abstract. The wastewater contain high concentrations of inorganic and organic pollutant and that could be toxic to aquatic life and may lead to toxic environment of the water bodies. The poolutants able to accumulate in living tissues, causing various illnesses. In this study, parameters that affected the removal of heavy metals, ammonia (NH 4 -N) and chlorophyll-a were investigated in a synthetic water of mixed metals, NH 4 -N, and alga synthetic solution. The removal was strongly affected by pH by using activated carbon cassava peel (CPAC) and Electric Arc Furnace Slag (EAFS) as media For CPAC, optimum condition for removing heavy metals, NH 4 -N and chlorophyll-a can be achieved at pH 7.5 where removal up to 95% for heavy metals, 49.2% for NH 4 -N and 56.8% for chlorophylla. While for EAFS, the optimum condition for removing heavy metals, NH 4 -N and chlorophyll-a can be achieved at pH 7.5 where removal up to 93% for heavy metals, 77.7% for NH 4 -N and 80.7% for chlorophyll-a. In order to obtain the maximum removal of heavy metals, NH 4 -N and chlorophyll-a, two conditions obtaining CPAC and EAFS were considered. The optimum condition for removing heavy metals, NH 4 -N and chlorophyll-a by 1/3 CPAC + 2/3 EAFS was pH 7.5 as well where removal up to 95% for heavy metals, 86.2% for NH 4 -N and 90.9% for chlorophylla. By using 1/3 EAFS + 2/3 CPAC, the optimum removal of heavy metals, NH 4 -N and chlorophyll-a was at pH 7.5 where removal up to 96% for heavy metals, 80.7% for NH 4 -N and 86.4% for chlorophyll-a. This study highlighted that EAFS and CPAC peel are promising method in removing Zn, Al, Fe ions, NH 4 -N and chlorophyll-a from aqueous solution.

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Biosorption of hexavalent chromium from aqueous solutions by Catla catla scales: Equilibrium and kinetics studies

Cited by 125 publications

References 24 publications

Comparative analysis of floating and submerged macrophytes for heavy metal (copper, chromium, arsenic and lead) removal: sorbent preparation, characterization, regeneration and cost estimation

Comparative analysis of floating and submerged macrophytes for heavy metal (copper, chromium, arsenic and lead) removal: sorbent preparation, characterization, regeneration and cost estimation

Biomass characterisation and adsorption mechanism of Cu (II) biosorption onto fish (Catla catla) scales

Optimization of pH in Ammonia, Heavy Metals, and Chlorophyll-a Removal by using Electric Arc Furnace Slag and Activated Carbon Cassava Peel

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