Calcium pyrophosphate (CPP) was prepared by a simple precipitation method using avian eggshell waste as a low-cost alternative calcium precursor source. The synthesized CPP powder was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM/EDS), thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FTIR). The results indicate that pure b-CPP nanocrys...

Eggshell membrane (ESM) is a unique biomaterial, which is generally considered waste. However, it has extraordinary properties which can be utilized in various fields and therefore it is being widely studied these days. Within this paper, the examples of multidisciplinary applications of the ESM are given. The author has published a review paper on this topic recently (Baláž, 2014a). Particular...

Waste oil is an inexpensive source for biodiesel production, but the high amount of impurities present (free fatty acids, oxidation products) impedes its practical application. The aim of this work is to assess the purification efficiency of the adsorption process with eggshell and its active carbon. Carbonization of eggshell was done at 200 ºC for 4 hours. For activation of the resultant carbo...

Industrial eggshell waste (ES) is classified as an animal by-product not intended to human consumption. For reducing pathogen spreading risk due to soil incorporation of ES, sanitation by composting is a pre-treatment option. This work aims to evaluate eggshell waste recycling in self-heating composting reactors and investigate ES effect on process evolution and end product quality. Potato peel...

A type of freestanding, light-weight eggshell membrane-based electrode is demonstrated for supercapacitors and for oxygen evolution reaction (OER) catalysis. As a widely available daily waste, eggshell membranes have unique porous three-dimensional grid-like fibrous structures with relatively high surface area and abundant macropores, allowing for effective conjugation of carbon nanotubes and g...

The development of innovative transformation techniques for various wastes generated by the agri-food industry is one goals sustainable waste management oriented toward “zero-waste” approach. This includes production bulk and fine chemicals, bioactive compounds, enzymes functional materials from waste. present research shows possibility value-added products eggshell using chemical acetic o-phos...

The accumulation of plastic waste and excessive use is a common environmental issue in Indonesia. Plastics are synthetic polymers that stable, water-resistant, light, flexible, firm but very difficult to break down by microorganisms. Decomposition burning can cause other issues and, during the combustion process produce dioxin compounds harmful health. An available affordable alternative reduce...

This paper described some mechanical properties of aluminum alloy using agro-waste materials such as sawdust, groundnut shell, and eggshell. The sand-casting method was adopted to produce the with 5, 15, 25, 35% wt. additives. microstructure various samples produced after quenched in water, palm oil, engine oil examined while hardness were determined. result obtained shows that values increased...

Chicken eggshell is one of the most common wastes generated from households, restaurants and other food processing outlets. Waste Eggshells (WCES) also constitutes an environmental nuisance ends up discarded at dumping site with no consideration further usage. The main constituent WCES calcium carbonate which or oxide can be extracted for various applications. This current effort reviews recent...