PLASTICS
Due to its slow degradation process, plastic is a threat to the environment, the plastic containers more damage to the ozone layer developed by the board and seriously pollute the ocean, being holders of 90% of the junk floating in it, producing the death of several marine species.
also compromise human health and the burning of this material, releases a high amount of poisonous gases such as dioxins are highly carcinogenic substances. Because their production is linked to the chlorine, highly damaging and reactive transport of explosives and dangerous materials, the generation of toxic waste to stabilize, harden and color, are added heavy metals and fungicides to prevent fungi from destroying them.
Recycling Plastics
plastics constitute a significant fraction of total waste and many of them are highly polluting. This makes it particularly interesting to recycle these materials.
Selection and recovery
A large percentage of our household waste is plastic. For recycling to be effective it is necessary to make a selection and previous separation of this material.
Indeed, the first step in the selection process for disposal must be in the points of origin, ie at home, where we separate the organic waste (materials that can rot or decay) of inorganic waste (plastics, metals, glass, paper, etc..).
Using containers
The next type of recycling will help you select your trash deposits using special places. It is necessary to have three tanks, preferably in
blue, yellow and green as this will help you remember where deposit going each type of trash that will give the order as follows:
Blue Container ( for Paper and cardboard packaging) paper sheets, magazines, newspapers ... and the cardboard boxes, packaging, etc..
Container Gray: (for residual waste) fruit peels, leftover food, hair and nails, grass and leaves, and this is used for composting .
plastic containers can be identified by the number of classification and recycling symbol usually appears at their bases. The most common types of plastics are:
mechanical recycling
mainly consists of applying heat and pressure to reshape objects. Of all the types of plastics, this process can only be applied to the group of thermoplastic .
1. When the material reaches the central recycling area passed to a washing and drying to prevent mixing of impurities.
2. Once clean is subjected to a milling using grinding machines, so that pieces do very little material in the form of pellets or even sometimes in powder form.
3. This crushed material fed an extruder that provides heat and pressure to the mass of plastic melts and can be used for the extrusion or molding new parts.
