A series of concerns regarding the circular economy and linked to a responsible attitude toward environmental protection, have been approached in this paper. These represent essential demands in order for restaurants to be profitable and sustainable in the future. The cost of food wastes has been taken into consideration as a strategic problem in the restaurant logistic chain. A literature review shows that there is a lack of appropriate knowledge and technology in dealing with eco-waste management. The paper presents a functional polyvalent model of the logistic chain of a restaurant, represented in the form of interconnected processes covered by the flows of food goods and wastes in different stages and operations, having associated the flows of optimized costs. The application of the sustainable technology model and waste management system is illustrated by a case study from Brașov County, Romania. The research proves that applying the “polyvalent model of improvement of waste management practices” has positive effects concerning the possibilities of minimizing physical waste to reduce the volume of waste from restaurant activity, to reduce costs with waste elimination, and to create value-added, by reusing and recycling food raw materials. Results show that by applying the TEWAMA-R model to food preparation, the total amount of reused beef waste per month increased to 33.4% and the recycling of waste increased to 41.1% (given that all waste was disposed of in application of standard technology). The disposal was reduced from 100% to 25.5%. The presented model allows for environmental impact reduction in the restaurant industry by reducing/eliminating waste or by-products that are carriers of huge resources of water and energy.
There are two major aspects treated in this paper. The first concerns the management of potato crop for minimizing the impact to environment and people. Organic potato and its technology are the key words for such management. The second aspect adresses the post-harvest management of organic potato obtained in a friendly environment system, aiming the preservation of their initially quality properties. For this purpose a method for testing using a digital potato is presented. The digital potato is a high tech measurement device, very useful for testing the impact between mechanized system and soil as well as the impacts between potatoes and harmful surfaces from the handling chain. The results obtained with this device are important in the harvest and postharvest potato management for obtaining quality potato for people consumption.
The paper analyses transport activity from the viewpoint of particularly hazardous substances (petroleum products, chlorine, inflammable products), which may lead to accidents with consequences like material damage, injuries and environment pollution and degradation. The increasing number of accidents has made the factors responsible for environmental health to rethink risk assessment generated by transport activity. It was recognized as a need based options to choose routes, depending on the type and nature of land use around routes. The method consists of a systematic assessment of factors that are influencing transport performance, team and general staff responsible of the transport, and identify situations that may cause road events. It includes identifying the particular error affected the systems interface and the relative order based on the possibility of producing errors or the severity of consequences. The results are qualitative and quantitative and include a systematic listing of scenarios encountered during normal conditions of carriage or emergency conditions.
Atmospheric pollution has often serious consequences to both man and environment, occurring under various forms: home dirt, affected plant growth, diminished quality of agricultural products, reduced visibility, unpleasant smells, and most importantly impaired health. As an unanimous conclusion, all completed research highlights the effects of atmospheric pollution as being a series of consequences on the climate, like: the greenhouse effect determined by the increase of carbon dioxide, cooling generated by an increase of particle concentration in the air, and modifications of the ozone layer. Further, disturbances of the cycles of carbon, oxygen, sulphur may occur, the latter being already well-observable by the increasingly acid rains. These immediate effects are completed by other indirect categories of damage and expenditure due to atmospheric pollution, like replacement and protection of precision apparatus, new sanitary measures in food industry, medical costs, the cost of work time lost due to working incapacity of individuals suffering from consequences of atmospheric pollution. The paper brings an analysis of future technologies and possibilities of diminishing polluting emissions of heat engines.
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