Removal of Phosphates from Water Using Eggshell Bio Sorbents

Anastasija Smirnova; Daina Kalnina; Janis Locs

doi:10.4028/www.scientific.net/KEM.721.149

Paper Titles

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Electromagnetic Shielding Properties of Metal Yarns Fabrics with Graphite Coating
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Purification of Contaminated Water with Chromium (VI) Using Pseudomonas aeruginosa
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Removal of Phosphates from Water Using Eggshell Bio Sorbents
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Use of Industrial Waste and Raw Materials in Iron Sorption
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Using Sewage Treatment Plant Sludge for Porous Ceramics Production
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Sr- and/or Mg-Containing Nanocrystalline Hydroxyapatite: Study from Synthesis to Calcined Products
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Effect of Synthesis Temperature and Ca/P Ratios on Specific Surface Area of Amorphous Calcium Phosphate
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 721Removal of Phosphates from Water Using Eggshell...

Removal of Phosphates from Water Using Eggshell Bio Sorbents

Abstract:

The present study focuses on the preparation and use of biosorbents produced from eggshells. Hen eggshells are produced as a by-product in large quantities by food manufacturers. The costs associated with eggshell disposal (mainly on landfill sites) are significant and expected to continue increasing as landfill taxes increase.The environmental significance of phosphorus arises from its role as a major nutrient for both plants and microorganisms. The adsorption efficiency of phosphate ions from the obtained biosorbents - raw eggshell powders - is studied at room temperature in static conditions. The effect of phosphate concentration and sorbent mass on the efficiency of the process is evaluated, as well as sorption kinetics are investigated. The structure, phase composition, porosity, specific surface area and morphology of obtained biosorbents is determined. The utilization of eggshells as an abundant, cheap and biodegradable material for the removal of phosphates is studied and discussed.

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Periodical:

Key Engineering Materials (Volume 721)

Pages:

149-153

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.721.149

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Online since:

December 2016

Authors:

Anastasija Smirnova, Daina Kalnina*, Janis Locs

Keywords:

Adsorption, Algae, Biosorbents, Eggshells, Phosphates

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