Laboratory based approaches for arsenic remediation from contaminated water: Recent developments

Mondal, Prasenjit; Majumder, C. B.; Mohanty, Bikash

doi:10.1016/j.jhazmat.2006.02.023

Cited by 424 publications

(248 citation statements)

References 124 publications

(145 reference statements)

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“…The peak at the wavelength of 885 and 820 cm -1 are negligible. This represents presence of As(III) in the biomass (Mondal et al 2006). Figure 3a shows the FTIR spectra of RH biomass and there were four or more CH 2 in a row and a rocking absorption was found around wave number of 720 cm -1 .…”

Section: Characterisation Of Biosorbentsmentioning

confidence: 90%

“…As it can be seen, the Freundlich isotherm gave better fits than the Langmuir isotherm, which illustrated that the biosorption on the surface of MLP and RH was a multilayer biosorption. Urik et al (2009) and Mondal et al (2006) reported the mechanism of As(III) adsorption onto modified sawdust and granular activated carbon seem to be formation of inner and outer sphere surface complex. Thus, the formation of chemical bond present in the surface of biomass and metal ions.…”

Section: Adsorption Diffusion Studymentioning

confidence: 99%

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Biosorptive behaviour of mango leaf powder and rice husk for arsenic(III) from aqueous solutions

Kamsonlian

Suresh

Ramanaiah

et al. 2012

Int. J. Environ. Sci. Technol.

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The present study deals with the biosorption of As(III) from aqueous solution using mango leaves powder (MLP) and rice husk (RH) in a batch operation. Scanning electron microscopy and Fourier transformation infrared spectrometry analysis shows the surface texture of biosorbents and metal binding of functional groups of before and after biosorption of As(III). The optimum pH was obtained at 7 and 6 with 7 and 6 g/l of dosage of MLP and RH, respectively. The adsorption of As(III) onto MLP and RH was favourably influenced by an increase in temperature. Equilibrium data were well represented by the Freundlich isotherm model. Nitric acid and ethylenediaminetetra acetic acid was found to be a better eluant for the desorption followed by hydrochloric acid and sodium hydroxide of As(III) with a maximum desorption efficiency of 69.5, 48.5 and 79.4, 86.3 %, respectively. The pseudosecond-order kinetic model was found to best fitted of the experimental data over the equilibrium time at 32 h. The positive values of heat of adsorption (23.89 kJ/mol for MLP and 52.26 kJ/mol for RH) indicate the endothermic nature of the adsorption process. The thermodynamic study showed the spontaneous nature of the sorption of As(III) onto MLP and RH.

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Section: Characterisation Of Biosorbentsmentioning

confidence: 90%

Section: Adsorption Diffusion Studymentioning

confidence: 99%

Biosorptive behaviour of mango leaf powder and rice husk for arsenic(III) from aqueous solutions

Kamsonlian

Suresh

Ramanaiah

et al. 2012

Int. J. Environ. Sci. Technol.

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show abstract

“…At present, many approaches such as adsorption, ion exchange, reverse osmosis, nanofiltration, coagulation (coprecipitation), membrane distillation, biological methods and photo catalytic oxidation are increasingly being used for the removal of arsenic from water body [2][3][4][5]. Coagulation (co-precipitation) and adsorption processes are most promising for aqueous arsenic removal because of the low cost and high efficiency, and are widely used in the developing world.…”

Section: Introductionmentioning

confidence: 99%

Arsenic removal from aqueous solution using ferrous based red mud sludge

Wang

Luan

et al. 2010

Journal of Hazardous Materials

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a b s t r a c tFerrous based red mud sludge (FRS) which combined the iron-arsenic co-precipitation and the high arsenic adsorption features was developed aimed at low arsenic water treatment in rural areas. Arsenic removal studies shown that FRS in dosage of 0.2 or 0.3 g/l can be used effectively to remove arsenic from aqueous solutions when initial As(V) concentration was 0.2 or 0.3 mg/l. Meanwhile, turbidity of supernatant in disturbing water was lower than 2 NTU after 24 h. The pH range (4.5-8.0) for FRS in effective arsenic removal was applicable in natural circumstance. Phosphate can greatly reduce the arsenic removal efficiency while the presence of carbonate had no significant effect on arsenic removal. Arsenic fractionation experiments showed that amorphous hydrous oxide-bound arsenic was the major components. When aqueous pH was decreased from 8.0 to 4.5, arsenic in FRS was not obviously released. The high arsenic uptake capability, good settlement performance and cost-effective characteristic of FRS make it potentially attractive material for the arsenic removal in rural areas.

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“…Some conventional methods have been applied for removing As from contaminated water, but found to be high-cost or lowefficiency (Mondal et al, 2006). Phytoremediation, a plant-based green technology, may provide an alternative and cost-effective method for As removal.…”

Section: Introductionmentioning

confidence: 99%

Arsenic accumulation by the aquatic fern Azolla: Comparison of arsenate uptake, speciation and efflux by A. caroliniana and A. filiculoides

Zhang

Lin

Zhao

et al. 2008

Environmental Pollution

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Arsenic accumulation and efflux differ between strains of the aquatic fern Azolla. This study investigates As accumulation and tolerance of the aquatic fern Azolla. Fifty strains of Azolla showed a large variation in As accumulation. The highest-and lowest-accumulating ferns among the 50 strains were chosen for further investigations. Azolla caroliniana accumulated two times more As than Azolla filiculoides owing to a higher influx velocity for arsenate. A. filiculoides was more resistant to external arsenate due to a lower uptake. Both strains showed a similar degree of tolerance to internal As. Arsenate and arsenite were the dominant As species in both Azolla strains, with methlyated As species accounting for <5% of the total As. A. filiculoides had a higher proportion of arsenite than A. caroliniana. Both strains effluxed more arsenate than arsenite, and the amount of As efflux was proportional to the amount of As accumulation. The potential of growing Azolla in paddy fields to reduce As transfer from soil and water to rice should be further evaluated. a r t i c l e i n f o

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Laboratory based approaches for arsenic remediation from contaminated water: Recent developments

Cited by 424 publications

References 124 publications

Biosorptive behaviour of mango leaf powder and rice husk for arsenic(III) from aqueous solutions

Biosorptive behaviour of mango leaf powder and rice husk for arsenic(III) from aqueous solutions

Arsenic removal from aqueous solution using ferrous based red mud sludge

Arsenic accumulation by the aquatic fern Azolla: Comparison of arsenate uptake, speciation and efflux by A. caroliniana and A. filiculoides

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