Screening of new sorbent materials for cadmium removal from aqueous solutions

Benaïssa, H.

doi:10.1016/j.jhazmat.2005.07.085

Cited by 65 publications

(23 citation statements)

References 29 publications

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“…Plant biomass of parthenium was also tried for the biosorption of cadmium (Ajmal et al 2006). Adsorption experiments conducted on other parts of some plants such as peels of peas, fig leaves, broad beans, orange peels, medlar peels and jack fruits as adsorbents showed high removal efficiencies at acidic pH (Benaissa 2006). High removal efficiencies for the removal of cadmium have also been reported by using hazelnut shells, peanut hulls, walnut shells and green coconut shells (Kurniawan et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of cadmium ions from aqueous solutions using sesame as a low-cost biosorbent: kinetics and equilibrium studies

Cheraghi

Ameri

Moheb

2015

Int. J. Environ. Sci. Technol.

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Sesame leaf and stem, as a kind of useless agricultural waste, was used as a sort of low-cost biosorbent for the removal of cadmium ions from aqueous solutions in batch and continuous modes. The biomass was characterized by Fourier transform infrared spectroscopy, scanning electron microscope and energy-dispersive X-ray analysis before and after adsorption. There were hydroxyl group, carboxyl group, etc. on the surface of the adsorbent from Fourier transform infrared spectroscopy. A batch study was employed as a function of the initial concentration, adsorbent particle size, adsorbent dose, contact time and the pH of the solution. Maximum sorption was found to occur at an initial pH of 6. The equilibrium process was satisfactorily described by the Langmuir isotherm model with the maximum sorption capacity of 84.74 mg g -1 . Kinetic studies also indicated that both pseudo-first-order and pseudo-second-order kinetic models (with R 2 values of 0.9929 and 0.9952, respectively) were able to describe the process. A continuous study was carried out, and the maximum uptake of cadmium ions in a fixed-bed adsorption column was found to be 22.88 mg g -1 , where the initial concentration of cadmium ions, bed height, flow rate and pH were 60 mg L -1 , 2 cm, 2.5 mL min -1 and 5.5, respectively.

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Section: Introductionmentioning

confidence: 99%

Adsorption of cadmium ions from aqueous solutions using sesame as a low-cost biosorbent: kinetics and equilibrium studies

Cheraghi

Ameri

Moheb

2015

Int. J. Environ. Sci. Technol.

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“…Recently, researchers are paying attention on the removal of Cd (II) from aqueous solution using adsorbents derived from low-cost tree leaves such as loquat leaves (Eriobotrya japonica) [10], Psidium guajava leaves [11], Maize leaves [12], Ulmus leaves [13], Scolymus hispanicus [14], Ulmus carpinifolia and Fraxinus excelsior tree leaves [15], fig leaves [16], Azadirachta indica (Neem leaves) [17], Olea europaea (Olive leaves) [18], and Prunus vium leaves [19].…”

Section: Introductionmentioning

confidence: 99%

Environmentally Friendly Biosorbent from Moringa Oleifera Leaves for Water Treatment

Ali¹,

Alfarra²,

Yusoff³

et al. 2015

IJESD

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Abstract-In this study Moringa oleifera leaves (biosorbent) is used for Cadmium (II) removal from water as a natural alternative for synthetic sorbents. Synthetic water was used to find optimum conditions for water treatment using biosorbent. The effect of biosorbent dosage and particle size, contact time, and pH effect were studied. Atomic Absorption Spectroscopy (AAS) was used to monitor the Cd (II) concentration before and after treatment with biosorbent. Fourier Transform Infrared Spectroscopy (FTIR) was used to monitor biosorbent structure changes before and after loading with Cd (II). Many parameters were studied such as: dosage of biosorbent (1 -10 g/L), contact time (2 -20 min), particle size (2 mm, 1 mm, 500 µm, 250 µm, and <250 µm), pH range (4-10), and Cd (II) concentrations (1, 3, 5, and 7 ppm). The statistical analysis of studied parameters showed that all parameters has an effect on Cd (II) removal with p values <0.05 except pH. FTIR result showed changes in the finger print area of biosorbent functional groups due to adsorption of Cd (II). As a conclusion, Moringa oleifera leaves can be used as an effective, low cost, and environmentally friendly biosorbent for the removal of Cd (II) from water.

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“…The AW capacity for metal removal depends on many factors such as metallic elements, pretreatments of AW, and operating conditions; however, AW tended to prefer some metals more than others (Nguyen et al 2013). Benaissa (2006) investigated the capacity of four inexpensive materials which are peels of peas, broad bean, medlar and fig leaves, to remove Cd from aqueous solutions; it was noted that the broad bean peel has the maximum adsorption capacity for Cd. In the present study, rice straw was more effective adsorbent than sugarcane bagasse and maize stalks.…”

Section: Resultsmentioning

confidence: 99%

Capability of some agricultural wastes for removing some heavy metals from polluted water stocked in combination with Nile tilapia, Oreochromis niloticus (L.)

Abdel‐Tawwab¹,

El-Sayed

Shady³

2017

Int Aquat Res

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Heavy metal (HM) pollution is one of the major problems that adversely affect the aquatic ecosystem and inhabiting biota. Heavy metals adsorption by low-cost adsorbents is one of the techniques used for HM removing from polluted water. In the present study, agricultural wastes (AW), i.e., rice straw, sugarcane bagasse, and maize stalks, were washed with distilled water, dried in a dry-oven, cut into small pieces (\0.5 cm long), and immersed at 1.0 g/L in aquaria containing synthetic mixture of lead (Pb), cadmium (Cd), copper (Cu), and zinc (Zn). Nile tilapia, Oreochromis niloticus (L.), fingerlings (25.2 ± 0.88 g) were stocked at a density of ten fish per 100-L aquarium for 72 h, during which fish were fed on a fish diet containing 25% crude protein ad libitum twice daily. Samples of water, AW, and fish were collected at different times to determine HM concentrations. The HM removal from polluted water was depending on the type of the metal ions, AW, and the contact time. However, HM concentrations in aquaria waters of all AW treatments decreased significantly by increasing contact time up to 24 h after which their concentrations were almost the same. Concentrations of waterborne Pb, Cd, Cu, and Zn in AW-containing aquaria were significantly lower than those of AW-free aquaria. The presence of any AW reduced significantly HM concentrations. In AW-free aquaria, HM-exposed fish accumulated more HM in their body than those reared in AWcontaining aquaria. The results of this experiment showed that all AW had the capability to remove HM levels from the polluted water and reduce their bioaccumulation in fish body. However, rice straw was the more efficient adsorbent for all metals.

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Screening of new sorbent materials for cadmium removal from aqueous solutions

Cited by 65 publications

References 29 publications

Adsorption of cadmium ions from aqueous solutions using sesame as a low-cost biosorbent: kinetics and equilibrium studies

Adsorption of cadmium ions from aqueous solutions using sesame as a low-cost biosorbent: kinetics and equilibrium studies

Environmentally Friendly Biosorbent from Moringa Oleifera Leaves for Water Treatment

Capability of some agricultural wastes for removing some heavy metals from polluted water stocked in combination with Nile tilapia, Oreochromis niloticus (L.)

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