Characterization and adsorption properties of eggshells and eggshell membrane

Tsai, Wen‐Tien; Yang, Jeng-Fu; Lai, Chih‐Wei; Cheng, You; Lin, Chien‐Ming; Yeh, Chingwei

doi:10.1016/j.biortech.2005.02.050

Cited by 515 publications

(286 citation statements)

References 22 publications

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“…This may mean that powdered egg shell have more heterogenous types of adsorption sites (Oke et al 2008). This result was similar to other researches reported using eggshell as adsorbent for various adsorbate (Tsai et al 2006;Kose and Kivanc 2011;Ehrampoush et al 2011;Oke et al 2008). High value of n indicates a strong bond between the adsorbent and the adsorbate.…”

Section: Adsorption Isothermssupporting

confidence: 85%

“…This value is greater than that obtained by Tsai et al (2006), but smaller than that obtained by Kose and Kivanc (2011). Figure 4 shows the effect of contact time on humic acid removal from peat water on powdered eggshell for different dosages.…”

Section: Characterization Of Powdered Eggshellsmentioning

confidence: 70%

“…3); thereby, strongly associated with the presence of carbonate minerals within the eggshells matrix (Tsai et al 2006;Carvalho et al 2011). There are also two observable peaks at about 711.73 and 875.68 cm -1 which should be associated with the in-plane deformation and out-plane deformation modes, respectively, in the presence of calcium carbonate (Tsai et al 2006;Carvalho et al 2011).…”

Section: Characterization Of Powdered Eggshellsmentioning

confidence: 99%

“…1). SEM image was also revealed that the eggshells have crystalline structure, exhibited an angular pattern (Tsai et al 2006), non-adhesive appearance, and formation of agglomerates. This observation was similar to other researches reported (Bhaumik et al 2012).…”

Section: Characterization Of Powdered Eggshellsmentioning

confidence: 99%

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Removal of humic acid from peat water using untreated powdered eggshell as a low cost adsorbent

Zulfikar

Novita²,

Hertadi

et al. 2013

Int. J. Environ. Sci. Technol.

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The main objective of this study is to investigate the possibility of powdered eggshell used as an adsorbent material for removal of humic acid from peat water. The influences of contact time, dose of eggshells, pH, and temperature were the factors considered in the removal processes of humic acid from peat water. In addition, adsorption isotherms of humic acid onto the powdered eggshell were also evaluated with the Langmuir and Freundlich approximations. Our results showed that the equilibrium of the process was eventually established after 60 min of the contact time, and also found that using 5 g of the powdered eggshell nearly 95 % of humic acid has been successfully removed from the peat water. The removal of humic acid gave better result when it was conducted at low pH, and it was almost unaffected the temperatures variation. The data was well fitted to Freundlich isotherm with the correlation coefficient of not \0.999, and could uptake the humic acid about 126.58 mg/g at pH 4.01, estimated from the Langmuir model. The kinetic experimental data proportionally correlated with the pseudo-second-order kinetic model with a rate constant in the range of 0.016-0.112 g mg -1 min -1 , while intra-particle-diffusion were the main rate determining step in the humic acid removal process. The powdered eggshell investigated in this study, thus, exhibited as a high potential adsorbent for the removal of humic acid from peat water.

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Section: Adsorption Isothermssupporting

confidence: 85%

Section: Characterization Of Powdered Eggshellsmentioning

confidence: 70%

Section: Characterization Of Powdered Eggshellsmentioning

confidence: 99%

Section: Characterization Of Powdered Eggshellsmentioning

confidence: 99%

See 2 more Smart Citations

Removal of humic acid from peat water using untreated powdered eggshell as a low cost adsorbent

Zulfikar

Novita²,

Hertadi

et al. 2013

Int. J. Environ. Sci. Technol.

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“…They consist of egg shells and Eggshell Membranes (ESM) (Mittal et al, 2016). The ESM resides between the egg white and the inner surface of the eggshell (Tsai et al, 2006). The Hen Eggshell Membrane (HESM) consists of interwoven protein fibers and spherical masses (Tsai et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Characterization of Activated Carbon from Eggshell Membranes Prepared Using Sodium Acetate and Zinc Metal Activation

Mopoung¹,

Jitchaijaroenkul²

2017

American Journal of Applied Sciences

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The eggshell membranes of ducks and hens were carbonized or activated with 4 wt% sodium acetate or zinc at 400-600°C. The carbonized or activated products were characterized by SEM-EDS, TEM, FTIR and XRD. It was found that the suitable activation temperature for eggshell membranes is 500°C with 30.03-35.26% yield. The activation performance of CH 3 COONa for eggshell membrane activated carbon production was higher than that of Zn metal. The CO 3 2-, Ca-O, C=C, Na-O and C-O functional groups have been formed on the surface of eggshell membrane activated carbon materials during both CH 3 COONa and Zn activation. Furthermore, CaO, MgO, Na 2 O and ZnO have also accumulated on eggshell membrane activated carbon materials with high content and regular dispersion. It was shown that the particles on the duck eggshell membrane activated carbon formed with Zn had weaker attachment on the surface than for duck eggshell membrane activated carbon formed with CH 3 COONa at same temperature. The XRD and TEM results revealed that the eggshell membrane activated carbons consist of an amorphous carbon matrix with some disordered graphite carbon matrix, spherical particles and nanofiber.

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Egg Bioscience and Biotechnology

Mine¹

2007

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Characterization and adsorption properties of eggshells and eggshell membrane

Cited by 515 publications

References 22 publications

Removal of humic acid from peat water using untreated powdered eggshell as a low cost adsorbent

Removal of humic acid from peat water using untreated powdered eggshell as a low cost adsorbent

Characterization of Activated Carbon from Eggshell Membranes Prepared Using Sodium Acetate and Zinc Metal Activation

Egg Bioscience and Biotechnology

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