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1. The materials that we use.
- Raw materials.
Each object is made of different materials. The different substances from which we get the materials are called raw materials.
- Some materials of particular importance.
Paper: paper-making is used as raw material cellulose.
As we consume a lot of paper to cut down many trees there.
Glass: Glass is needed to make sand, soda, soda, lime and energy. Sand, soda ash and limestone are the raw materials needed to manufacture glass. Plastic
: raw materials for plastic are extracted oil. Plastic is collected for distillation of petroleum.
2. What do we throw away?
In a very short time, the products seem old and useless and throw away. The things that make up household waste are called municipal solid waste.
residues are formed by a variety of materials: batteries, soil and ash, stone and ceramics, textiles, wood, rubber and leather, metals, plastics, glass, paper and paperboard , and other organic matter.
Organic matter: it is mainly food waste.
inert matter (or inorganic) is bottles, cans, cardboard, sheet metal, plastics, etc.
When we throw away an object are also pulling the raw materials with which it has been manufactured.
3. What can we do to it?
produce too much garbage, almost thirty pounds dumped into uncontrolled landfills, harming the environment and can cause health problems.
Waste incineration is an alternative to traditional landfill, although it can cause environmental problems.
Reducing the volume of waste: refuse containers that do not have a conservation feature for product hygiene. Reuse
products: avoid wherever possible possible products "disposable" as non-returnable bottles or plastic bags.
Recycling waste: is to separate the waste materials to be reused in the manufacture of new products.
Many materials in the waste can be used to produce other new items. The materials are easier to recycle paper and glass, and second metals.
recycle a material is to develop a new product from a previous one that has no utility. 4.Reciclado
glass and paper.
- How recycled glass?
bottles are collected containers are crushed and removed all kinds of impurities, then this glass powder is mixed with other raw materials and get the molten glass.
- Recycle paper a great idea.
cutting paper is mixed with water and glue, then form a sheet with the paste and dried with a sponge on a grid, separates this film and pressed between two sheets of wood, ú Finally allowed to dry.
recycling paper and glass reduces the cost of raw materials and energy.
5.Reciclado of organic matter and plastics.
- How use the organic matter?
In nature, everything is recycled. The organic matter from leaves, animal droppings and dead bodies decompose in the earth, transformed into substances that nourish the soil and encourage the growth of new plants.
In the rotating sieve separates the waste organic matter bulkier. The separated organic matter left to decay in large fermentation tanks, where it becomes compost. Are removed by magnetic separation of fermented organic matter objects metal that can contaminate the soil.
- Plastics
There are many varieties of plastics, and each type requires different treatment. The recycling of plastics is a very complex process, which requires classification prior to treatment.
Recycled plastic is used to manufacture various types of packaging.