These polymers are based on renewable resources are attractive in terms of raw materials. However, they have advantages in the field of recycling. Currently, recycling of plastics petrochemicals is a major problem, especially in countries with high population density, for example in the UK, as most of them complete their way to landfills where they take up much space and penetrate into all corners. Therefore, the development legislation and consumer demands are forcing to develop the collapsing natural and / or recycled plastics. In fact, many products that can be derived from renewable resources can also buy natural decomposition properties under appropriate conditions. This is related to the destruction of such polymers in biological terms that are relevant to biomedical industry. Many polymers that can be made in the form of materials for consumer products of daily use, are well known in the biomedical community due to its characteristics of destruction in vivo body. Thus, the development of polymers based on renewable resources is on several fronts.
2 polylactide polylactide (PLA) attracts attention because it is based on derived from plant resources. It also has properties that allow its use as a replacement for polyolefins (eg, packaging), but he concedes metabolites. Recently, this material has experienced a renaissance when several companies started to produce it. In the production of PLA corn-based raw materials or processed sugar to create the dextrose, which subsequently undergoes fermentation to lactic acid. This acid by means of thermal and catalytic methods is converted to its cyclic dimer – lactide.
Gas stations – it's environmentally friendly, reliable and modern units for stand-alone and backup power supply. They allow the owner to be independent from routine and emergency outages, and sometimes so that altogether cancel the service suppliers. Compared with diesel or gasoline power generators, gas have a number of tangible benefits. Petrol and diesel engines are limited to types used in these fuels. Gas power plants work well as a liquefied gas "LPG" or gas 'methane' from the main pipeline and passing gas released during oil production, which usually burned. If the electricity needs are great, compact generators easily merge, forming one strong unit increased reliability. After the failure of the stop or to prevent one of the components generator is only slightly reduces the overall power output. 
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