Kinetics of Hg(II) adsorption and desorption in calcined mussel shells

Peña-Rodríguez, Susana; Fernández‐Calviño, David; Nóvoa-Muñoz, Juan Carlos; Arias‐Estévez, Manuel; Núñez‐Delgado, Avelino; Fernández‐Sanjurjo, María J.; Álvarez‐Rodríguez, Esperanza

doi:10.1016/j.jhazmat.2010.04.079

Cited by 53 publications

(23 citation statements)

References 30 publications

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“…Choi et al [23] found that shell powder can enhance the shelf-life and the quality of kimchi for preservation and consumption. Peña-Rodríguez et al [24] used batch and stirred flow chamber experiments to determine mercury retention on calcined and ground mussel shell, finding that calcined shell retained more Hg than ground shells (6300 vs. 4000–5200 μmol/kg). However, there are few reports on the preparation of functional materials by loading functional ions on the shell powder carrier.…”

Section: Introductionmentioning

confidence: 99%

Calcined Mussel Shell Powder (CMSP) via Modification with Surfactants: Application for Antistatic Oil-Removal

et al. 2018

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Biomass is known to efficiently adsorb pollutants from wastewater. In this paper, we demonstrated that a new antistatic oil-cleaning material can be prepared and assembled by using two surfactants, alkyl polyglucosides (APG) and dimethyl octadecyl hydroxy ethyl ammonium nitrate (SN), to modify calcined mussel shell powder (CMSP) through a two-step hydrotherm-assisted adsorption. The pore size and structure of CMSP was measured by BET and a contact angle meter was used to characterize the surface wetting ability. XRD, FTIR, XPS, SEM, TEM, and HRTEM were employed to determine the surface structure of CMSP modified by surfactants APG and SN (MMO). In order to further characterize properties of the surface morphology and crystal structure, the HRTEM was employed to show that the MMO surface had a single crystal structure: calcite, with a crystal plane spacing of 0.2467 nm. The surface of MMO appeared to be fluffy and disperse. The antistatic and degreasing ability of as-prepared samples (MMO) was evaluated by a ZC-36 high resistance meter and BD-457 whiteness meter. The results showed that when the calcination temperature of CMSP reached 1000 °C, and the addition amount of APG and SN was 0.8 g and 0.16 g, it had an optimum antistatic effect with a surface resistivity (Rs) of 1.35 × 108 Ω, and a detergency rate to oil of 17.35%. This study aims to embrace a green solution to reduce environmental pressure and make use of waste, which is of great significance to environmental protection.

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Section: Introductionmentioning

confidence: 99%

Calcined Mussel Shell Powder (CMSP) via Modification with Surfactants: Application for Antistatic Oil-Removal

et al. 2018

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“…In this way, by evaluating crustacean wastes, are benefited both economically and environmentally. In literature, easily obtainable, economical and biodegradable natural materials such as mussel shells have attracted great interest that can be used for different aims such as biodiesel production [2,3], nanoscience [4], dye [5][6][7] and metal removing [8][9][10][11][12] and synthesis studies [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Investigation on surface charasteristics of uncalcinated and calcinated mussel shells

Dandıl

2018

GJPAAS

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In recent years, developing economical adsorbents to treat with different types of pollutants has attracted great interest. Waste mussel shells are common wastes produced by the seafood industry. They have some advantages over conventional process such as simplicity of design and low cost. In this study, the uncalcinated and calcinated mussel shells were characterisated for their surface characteristics. Mussel shells washed with tap water several times followed by distilled water and dried at 105°C for 12 hours in an oven. They were powdered to small particles and calcined at 900°C for 2 hours. The sample was finely ground into small particles of different sizes, washed with distilled water and dried overnight at 105°C. And then, the sample was calcined at a heating rate of 2°C/min to 400°C and maintaned at this temperature for 4 hours.The calcined and uncalcined mussel shell samples were characterised by Fourier transformed infrared spectroscopy, scanning electron microscopy equipped with an energy dispersive spectrometer, Brunauer-Emmett-Teller and Zeta potential mesaurements. The results indicated that calcination studies improved the surface charasteristics of the mussel shells and that the calcinated mussel shells can be used in adsorption studies as a novel low-cost, eco-friendly biosorbent efficiently.

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“…Galicia (NW Spain) is one of the most important producers of mussel (Mytilus galloprovincialis) in the world (Caballero et al 2009). Most of this mussel production is processed by the cannery industry generating great amounts of wastes (mainly mussel shells), which will vary between 65,682 and 93,541 tonnes per year depending on mussel production (Barros et al 2009;Peña-Rodríguez et al 2010). In coastal areas, it is traditional that farmers helped to the direct recycling of untreated shell using it to increase the pH of acid soils.…”

Section: Introductionmentioning

confidence: 99%

“…was reported by Köhler et al (2007), whereas high levels of Hg 2? could be retained using calcined mussel shell, but this material contained 7 % of aragonite even after calcination (Peña-Rodríguez et al 2010).…”

Section: Introductionmentioning

confidence: 99%

pH-dependent copper release in acid soils treated with crushed mussel shell

Garrido-Rodríguez

Fernández‐Calviño

Nóvoa-Muñoz

et al. 2013

Int. J. Environ. Sci. Technol.

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The aim of this study was to assess the influence of pH on copper mobilization in two copper-rich acid soils (from vineyard and mine) amended with crushed mussel shell. Crushed mussel shell amended soils (0-48 Mg ha -1 ) were subjected to the effect of several acid and alkali solutions in a batch experiment in order to study their copper release. Copper distribution was studied in decanted soils from batch experiments using a sequential extraction procedure, whereas the effect of crushed mussel shell on copper release kinetics was studied using a stirred flow reactor. When soils were treated with acid solutions, the copper mobilization from non-amended soils was significantly higher than from the amended samples. Major changes in copper fractionation were an increase of the acid soluble fraction in acid-treated vineyard soil samples with shell dose. For the mine soil, the oxidable fraction showed a relevant diminution in acid-treated samples at the highest crushed mussel shell dose. For both soils, copper desorption rates diminished up to 86 % at pH 3 when crushed mussel shell was added. At pH 5, copper release rate was very slow for both soils decreasing up to 98 % for the mine soil amended with the highest shell dose, whereas no differences were observed at pH 7 between amended and non-amended soils. Thus, crushed mussel shell addition could contribute to reduce potential hazard of copperenriched soils under acidification events.

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Kinetics of Hg(II) adsorption and desorption in calcined mussel shells

Cited by 53 publications

References 30 publications

Calcined Mussel Shell Powder (CMSP) via Modification with Surfactants: Application for Antistatic Oil-Removal

Calcined Mussel Shell Powder (CMSP) via Modification with Surfactants: Application for Antistatic Oil-Removal

Investigation on surface charasteristics of uncalcinated and calcinated mussel shells

pH-dependent copper release in acid soils treated with crushed mussel shell

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