Eggshell membrane separation methods-waste to wealth-a scoping review

Kattimani, Vivekanand; Panga, Gnana Sarita; Girija, E. K.

doi:10.34233/jpr.1131361

Cited by 4 publications

(4 citation statements)

References 25 publications

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“…For this purpose, each sampled eggshell was cleaned with tap water and dried in air. It must be noted here that no commercial method is available right now to separate the eggshell membrane on a largescale [102]. Therefore, it was not tried to remove the eggshell membrane through any dedicated method so that to meet the practical requirements.…”

Section: Market Survey and Collection Of Samplesmentioning

confidence: 99%

Eggshells from Different Countries of Origin and Their Sustainable Application as a Partial Replacement of Cement

Maqsood,

Eddie,

et al. 2023

Preprint

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This study aims at the sustainable valorization of eggshells (ES) from different countries of origin in cement concrete as a cement replacement. For this purpose, sixteen different eggs from different regions across the world were selected. Firstly, the extent of uniformity in the weight and mineral content of sampled eggshells was assessed by a specific gravity test and thermogravimetric analysis (TGA), respectively. It was found that specific gravity varies between 2.02 – 2.39, having an average value of 2.20 ± 0.01, whereas the CaCO3 varies between 94.65% - 97.23%, having an average value of 96.33%. These values were a bit lower than extra-pure limestone (LS) because of having organic part and the porous structure of eggshells. Secondly, three different eggshells were selected for cement replacement in cement concrete both in the uncalcined and calcined state based on having the highest, medium, and lowest CaCO3 content, respectively. To get the calcined eggshells, the eggshells were calcined at 800oC for three hours. It was found that the strength of eggshells varies with the CaCO3, but the variation was acceptable. The calcined eggshells showed comparatively more compressive strength and were close to the LS because of free CaO and the absence of an organic part. In general, the variation in the basic properties of eggshells from different regions across the world is negligible and is suitable for use in as a cement replacement with acceptable variation in the strength.

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Section: Market Survey and Collection Of Samplesmentioning

confidence: 99%

Eggshells from Different Countries of Origin and Their Sustainable Application as a Partial Replacement of Cement

Maqsood,

Eddie,

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…For this purpose, each sampled eggshell was cleaned with tap water and dried in air. It must be noted 6 here that no commercial method is available right now to separate the eggshell membrane on a largescale [103]. Therefore, it was not tried to remove the eggshell membrane through any dedicated method so that to meet the practical requirements.…”

Section: Market Survey and Collection Of Samplesmentioning

confidence: 99%

Global Eggshell Properties: Characterizing Variability for Sustainable Partial Cement Replacement in Hong Kong’s Concrete

Maqsood,

Eddie,

et al. 2023

Preprint

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This study aims at the sustainable valorization of eggshells (ES) from different countries of origin in cement concrete as a cement replacement for Hong Kong. For this purpose, sixteen different eggs from different regions across the world were selected from the local market. Firstly, the extent of uniformity in the weight and mineral content of sampled eggshells were assessed by a specific gravity test and thermogravimetric analysis (TGA), respectively. It was found that specific gravity varies between 2.02 and 2.39, with an average value of 2.20 ± 0.01, whereas CaCO3 varies between 94.65% and 97.23%, with an average value of 96.33%. These values were a bit lower than those of extra-pure limestone (LS) because of the organic part and the porous structure of eggshells. Secondly, three different eggshells were selected for cement replacement in cement concrete, both in the uncalcined and calcined states, based on having the highest, medium, and lowest CaCO3 content, respectively. To get the calcined eggshells, the eggshells were calcined at 800oC for three hours. It was found that the strength of eggshells varies with CaCO3, but the variation was acceptable. The calcined eggshells showed comparatively more compressive strength and were close to the LS because of the free CaO and the absence of an organic part. In general, the variation in the basic properties of eggshells from different regions across the world is negligible and suitable to use as a cement replacement with acceptable variation in strength in Hong Kong.

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“…The traces of sodium, potassium, zinc, manganese, iron and copper are also present in egg shell" [4]. It is mostly discarded as a landfill or burned that contributes to different types of pollution like soil, water, air [5] and also incur considerable disposal costs in the world [6]. "The disposal of eggshells not only provide site for flies and abrasiveness, but also contributes to the loss of many materials" [7].…”

Section: Introductionmentioning

confidence: 99%

PRANAM-Ca: An Eggshell Derived Calcium Fertilizer and Its Impact on Blossom end Rot in Tomato Cultivation

Bhargaw,

Dasgupta,

Pooja D. V.

et al. 2024

JEAI

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Eggshells, amounting to a staggering 76.7 million tons annually, are often inadequately disposed of in landfills, leading to significant nutrient loss for both plants and humans, while contributing to environmental pollution and emitting unpleasant odors. In response to these challenges, recent research has been dedicated to repurposing eggshells, exploring their applications in diverse fields such as biochemistry, biomedicine, environmental technology, and agriculture. Recognized as an exceptional source of calcium, eggshells offer notable benefits for calcium-demanding crops, including tomatoes, chilli and cotton. In a comprehensive study conducted, we investigated the application of organic foliar calcium derived from eggshells on tomato plants. The results demonstrated substantial improvements in addressing physiological disorders, promoting overall growth, and enhancing yield, signifies the importance of calcium fertilizer for growing healthy crop. With this background, Multiplex R&D team has made an effort to develop an in-house technology to derive the calcium from waste eggshell. Afterwards, how to scale-up and commercialise it as a sprayable form of Organic calcium fertilizer, PRANAM-CA. Present paper aims to describe the technique to derive calcium from eggshell and its impact on managing the blossom end rot in Tomato cultivation under protected glass-house condition.

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Eggshell membrane separation methods-waste to wealth-a scoping review

Cited by 4 publications

References 25 publications

Eggshells from Different Countries of Origin and Their Sustainable Application as a Partial Replacement of Cement

Eggshells from Different Countries of Origin and Their Sustainable Application as a Partial Replacement of Cement

Global Eggshell Properties: Characterizing Variability for Sustainable Partial Cement Replacement in Hong Kong’s Concrete

PRANAM-Ca: An Eggshell Derived Calcium Fertilizer and Its Impact on Blossom end Rot in Tomato Cultivation

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