Food waste is one of the most important food waste, including food families, schools, canteens and catering industries produce processing waste (kitchen waste) and food residue (Hogwash). Its complex composition, mainly a mixture of oil, water, fruit, vegetables, rice, fish, meat, bones and waste cutlery, plastic, paper towels, and other substances. Huge quantities of food waste, and rose rapidly.
Duality of food waste has significant hazards and resources, and its characteristics can be summarized as follows:
⑴ high moisture content up to 80% - 95%.
⑵ high salt content in some areas, including chili, acetic high.
⑶ high organic content, protein, cellulose, starch and fat.
⑷ rich in nitrogen, phosphorus, potassium, calcium, and various trace elements.
⑸ presence of pathogens, pathogenic microorganisms.
⑹ perishable, perishable, smelly, mosquitoes.

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