Application of pyrolysis process in processing of mixed food wastes

Abstract

The food industry produces large amounts of solid and also liquid wastes. Different waste materials and their mixtures were pyrolysed in the laboratory pyrolysis unit to a fi nal temperature of 800°C with a 10 minute delay at the fi nal temperature. After the pyrolysis process of the selected wastes a mass balance of the resulting products, off-line analysis of the pyrolysis gas and evaluation of solid and liquid products were carried out. The highest concentration of methane, hydrogen and carbon monoxide were analyzed during the 4th gas sampling at a temperature of approx. 720-780°C. The concentration of hydrogen was measured in the range from 22 to 40 vol.%. The resulting iodine numbers of samples CHFO, DS, DSFW reach values that indicate the possibility of using them to produce the so-called "disposable sorbents" in wastewater treatment. The WC condensate can be directed to further processing and upgrading for energy use.

Comments on waste to energy technologies in the United Arab Emirates

“…Grycová et al [25] report a study on the conversion of food wastes into energy using pyrolysis process. Coker [26] reports a study on conversion of food waste into biogas energy and fertilizer using an anaerobic digestion.…”

Influence of Particle Size and Chemical Activation on Rice Husk Biochar as Slow Release Fertilizer

“…It could be originated from the agricultural waste such as wood, rice husks, oil palm shells, cocoa pod husks and other wastes. (Grycová et al, 2016).…”

Utilization of spent dregs for the production of activated carbon for CO2 adsorption

“…More economical and environmentally friendly is to use waste material 5, 76, 77 . To date, it has been reported that activated carbons have been prepared from agricultural residues such as sawdust 76 , coconut shell 78 , olive stone 79 , beet molasses 12 , fungi 80 , corn syrup 76, 81 , kraft lignin 82 , ebony wood 83, 84 , mahogany wood 82 and food waste 85,86 .…”