Abstract
Appropriate management of food waste (FW) is essential to decrease its environmental impact and to reduce hazards to human health. However, commonly adopted techniques are aimed to address mainly the disposal issues which consider FW as waste rather than an energy resource, yet require additional energy to process. FW can be conventionally combusted or incinerated for heat and energy recovery. These conventional techniques use natural resources, and adversely affect the environment, causing consequences such as air pollution and loss of the chemical value of FW during combustion. With this in mind, converting FW to bioenergy using greener technologies such as anaerobic digestion and dark fermentation is an appropriate and sustainable way to handle FW. This chapter covers the various greener technologies available for producing bioenergy from FW, as well as the challenges associated with the commercialization of technologies.
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