Journal
BIOMASS & BIOENERGY
Volume 148, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biombioe.2021.106009
Keywords
Coffee-husk; Compost; Win-win Solution; Soil Fertility; Waste-management
Funding
- Merloni Foundation
- UNIVPM-Ancona
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Coffee husk, the main by-product of coffee processing, is mainly used for animal feeding or energy production. Most of the coffee husk is disposed without care, becoming a source of pollution, especially in developing countries. It is important to find environmentally friendly methods to recycle coffee husk due to its rich nutrients and organic matter content.
Coffee is the most common beverage and there are two main different methods to process coffee cherries. Coffee husk is the main by-product of coffee processing by dry method and is available in large quantities throughout the years, but its main application has been limited to animal feeding or energy production. Most of the coffee husk is disposed in landfills or arable land, usually with no care of its fate and changes to the source of pollution, especially in developing countries. Coffee husk can have several re-uses, but it is important to have environmentfriendly methods to change it into useable material or material to be recycled in nature because of its important content of organic matter, chemical nutrients, and secondary compounds. The aim of this review is to recollect the amounts and uses of the coffee industry by-products, giving emphasis to its transformation into compost because of their large content of nutrients and the need to introduce high valuable organics into the soil.
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