Eggshell derived CaO-Portland cement antibacterial composites

Nath, Dikshita; Jangid, Kirti; Susaniya, Ankit; Kumar, Rajeev; Vaish, Rahul

doi:10.1016/j.jcomc.2021.100123

Cited by 23 publications

(14 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This result indicates the formation of calcium oxide, as the carbonate in the eggshell decomposes. These results are comparable to previous published data [12,17,50].…”

Section: Fourier Transforms Infrared Spectroscopysupporting

confidence: 92%

“…There are several notable applications of calcium oxide derived from eggshells, as follows. Nath et al pointed out that composite cement with a partial replacement of cement with 5%, 10%, and 15% by weight of calcium oxide derived from eggshells exhibited antibacterial properties, which may help to preserve building surfaces [12]. Biogas production from the anaerobic digestion of the palm oil mill effluent increased by 1.5 times when nano-calcium oxide catalyst prepared from eggshells was included [13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Production of Bio-Calcium Oxide Derived from Hatchery Eggshell Waste Using an Industrial-Scale Car Bottom Furnace

Putkham¹,

Chuakham²,

Chaiyachet³

et al. 2022

Journal of Renewable Materials

View full text Add to dashboard Cite

The valorization of eggshell waste as bio-calcium oxide is crucial for pollution prevention and supporting sustainable development. There are several reports on the thermal conversion of eggshell waste to calcium oxide for the partial or complete substitution of natural lime applications. However, this paper reports the thermal decomposition of large amounts of hatchery eggshell waste on an industrial-scale car bottom furnace for the first time. The hatchery eggshell waste was sundried and placed into five stacked trays in the car bottom furnace. The calcination of the eggshell waste was conducted at 900°C for 3 and 4 h under an atmosphere of air. Both the physical and chemical properties of the eggshell samples and the bio-quicklime products were carefully examined by TGA, SEM, XRD, FTIR, and XRF. The results demonstrate that the purity of calcium oxide in the quicklime products increased from 79% to 87% upon increasing the calcination time from 3 to 4 h. However, the color of the calcined eggshell samples at the surface of the pile was white while the color of the product beneath the surface was black or dark gray. The purity of the calcium oxide of both the black and white calcined samples was 76.4% and 91.5%, respectively. These results indicate the limited efficacy of the car bottom furnace for thermal decomposition of the large amount of eggshell waste to calcium oxide. Additionally, the production cost of bio-calcium oxide is approximately twice the cost of industrial grade lime. For further industrial applications, the furnace should contain the mixing equipment for improving the thermal decomposition of the large pile of eggshell waste. Furthermore, the oil burner system may be used in order to reduce fuel costs.

show abstract

“…This result indicates the formation of calcium oxide, as the carbonate in the eggshell decomposes. These results are comparable to previous published data [12,17,50].…”

Section: Fourier Transforms Infrared Spectroscopysupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Production of Bio-Calcium Oxide Derived from Hatchery Eggshell Waste Using an Industrial-Scale Car Bottom Furnace

Putkham¹,

Chuakham²,

Chaiyachet³

et al. 2022

Journal of Renewable Materials

View full text Add to dashboard Cite

show abstract

“…In this case, the optimal dosage of eggshell powder as a replacement for part of the cement is 10%, as in [13,16,19,21], but the performance gains achieved in these works differ. The optimal dosages of ESP according to [10,13,16,18,[20][21][22] are from 5 to 15%. However, sometimes there are also more optimal amounts of added ESP, for example, 20% [15].…”

Section: Discussionmentioning

confidence: 99%

“…This replacement is most optimal for mixture compositions with a higher water content. [22] Obtaining pure CaO by heating eggshells to 900 • C and replacing part of the cement (5%, 10%, 15%) with it made it possible to obtain new antibacterial composites.…”

Section: Characteristics Of Concretes and Mortarsmentioning

confidence: 99%

Enhanced Eco-Friendly Concrete Nano-Change with Eggshell Powder

et al. 2022

View full text Add to dashboard Cite

One of the unifying factors for all countries is the large consumption of chicken, and other, eggs in food and other types of economic activity. After using various types of eggs for their intended purpose, a large amount of waste accumulates in the form of eggshells. Currently, this problem exists and needs a non-trivial, original solution. The aim of the work was to fill the scientific gap in the direction of studying the microstructure formation of improved nano-modified environmentally-friendly concrete based on eggshell powder and obtaining a concrete composition for the manufacture of an industrial sample of such a material. An environmentally-friendly concrete was obtained, the characteristics of which were improved relative to standard concrete by modifying it with eggshell powder, for which the optimal dosage was determined. The most effective was the replacement of part of the cement with eggshell powder in the amount of 10%. The maximum increase in strength characteristics ranged from 8% to 11%. The modulus of elasticity increased by 4% compared to the control samples without eggshell powder. The maximum reduction in deformations under axial compression and tension in comparison with the control values ranged from 5% to 10%. The study of the composite’s microstructure nano-modified with eggshell powder, and an analysis of the changes occurring in this microstructure due to nano-modification, confirmed the improvement in characteristics and the optimal dosage of eggshell powder.

show abstract

“…CaO was extracted from chicken eggshell waste according to the reported procedures in the literature 52 , 53 with some modifications as follows: To eliminate suspended impurities from any organic phases and pathogens, the eggshells were first cleansed with double-distilled water before being seethed at 100 °C for 60 min. The washed eggshells were dehydrated in a hot air oven at 150 °C for 24 h and subsequently were ground manually into a fine powder in a pestle and mortar.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and characterization of calcium and magnesium based oxides and titanates for photocatalytic degradation of rhodamine B: a comparative study

Vijayakumar

Imthiaz

Drweesh

et al. 2023

Sci Rep

View full text Add to dashboard Cite

The current investigation deals with the simple and ecological synthesis of CaO, MgO, CaTiO3, and MgTiO3 for the photocatalytic dilapidation of rhodamine B dye. CaO was procured from chicken eggshell waste by calcination process, while MgO was produced by solution combustion method using urea as a fuel source. Furthermore, CaTiO3 and MgTiO3 were synthesized through an easy and simple solid-state method by mixing thoroughly the synthesized CaO or MgO with TiO2 before calcination at 900 °C. XRD and EDX investigations confirmed the phase formation of the materials. Moreover, FTIR spectra revealed the existence of Ca–Ti–O, Mg–Ti–O, and Ti–O which resembles the chemical composition of the proposed materials. SEM micrographs revealed that the surface of CaTiO3 is rougher with relatively dispersed particles compared to MgTiO3, reflecting a higher surface area of CaTiO3. Diffuse reflectance spectroscopy investigations indicated that the synthesized materials can act as photocatalysts under UV illumination. Accordingly, CaO and CaTiO3 effectively degraded rhodamine B dye within 120 min with a photodegradation activity of 63% and 72%, respectively. In contrast, the photocatalytic degradation activity of MgO and MgTiO3 was much lower, since only 21.39 and 29.44% of the dye were degraded, respectively after 120 min of irradiation. Furtheremore, the photocatalytic activity of the mixture from both Ca and Mg titanates was 64.63%. These findings might be valuable for designing potential and affordable photocatalysts for wastewater purification.

show abstract

Eggshell derived CaO-Portland cement antibacterial composites

Cited by 23 publications

References 39 publications

Production of Bio-Calcium Oxide Derived from Hatchery Eggshell Waste Using an Industrial-Scale Car Bottom Furnace

Production of Bio-Calcium Oxide Derived from Hatchery Eggshell Waste Using an Industrial-Scale Car Bottom Furnace

Enhanced Eco-Friendly Concrete Nano-Change with Eggshell Powder

Synthesis and characterization of calcium and magnesium based oxides and titanates for photocatalytic degradation of rhodamine B: a comparative study

Contact Info

Product

Resources

About