摘要:This paper aims to show scientifically the existing correlation between recovery of by-products and waste obtained from processing raw materials from food industry and other food producing sectors (tourism industry, catering, households) and environmental protection. There are presented scientifically altering substances and degradation that may result from unprocessed sub-products and waste from food processing (putrescein, cadaverine, agmatine, phenilamina, tyramine, histamine, phenol, skatol, mercaptan, ammonia, hydrogen sulfide and others), most of them being toxic, with a smell stench, rejects that can pollute the environment. It has been also highlighted the role of support of waste and by-products for outbreaks of infection, the host of pests, parasites, pathogens, viruses and bacteria that can cause food poisoning and there are identified types of recovery of by-products for food and technical purposes. For waste recovery there are specified the main recovery directions: obtaining technical biogas and alcohol, which are used as fuel. Romanian and EU legal framework governing these areas is considered appropriate, but its application is deficient. Solutions and conclusions are presented