Wastes are materials that are not prime products(that is products produced for the market) for which the initial users has no further use in terms of his/her own purposes of production, transformation or consumption, and of which he/she wants to dispose. Waste may be generated during the extraction of raw materials, the processing of raw materials into intermediate and final products, the consumption of final products, and other human activities. Residuals recycled or reused at the place of generation are excluded.
Waste's Types
a.Organic waste - can be parsed (degradable)
Organic waste, which is waste like leftover perishable
foods, vegetables, dried leaves, and so on. This garbage can be turned into compost;
b.Inorganic waste - do not decompose (undegradable)
Inorganic rubbish, that is not easily decompose garbage,
such as plastic food packaging containers, paper, plastic toys, bottles and
drink cups, cans, wood, and so on. This can be used as trash bins or commercial
waste products to be sold laiannya. Some inorganic waste that can be sold are
plastic food packaging containers, bottles and glasses former beverage, cans,
glass, and paper, whether newspaper, HVS, and cardboard.
And many ways to manage waste:
1. Sorting is separated into groups of organic and non-organic waste and placed in different containers.
2. Processing by implementing the 3R concept:
Reuse (reuse) that is using a particular waste is still possible to use [reuse old bottles].
Reduce (reduction) that is trying to reduce everything that can lead to waste and reduce the waste that already exists.
Recycle (recycled) that is using certain waste to be processed into a more useful item [recycling organic waste into compost].
3. For waste that can not be addressed within the scope of the school, gathered to place Temporary Shelters has been provided for further transported by the janitor to the Final Disposal.
Waste paper generated a lot of that type HVS. This paper types among scavengers have the highest prices. Not to mention cardboard, paper food wrappers and other paper types. Especially for waste paper, can do two things to manage.
1. The first is recycling as its own management. Waste paper can be recycled fairly easily. Scrap paper cut into small pieces and soaked in water. The next process is the blender to turn into pulp. This is where creativity is needed. Pulp can be used as recycled paper or can be used as the basis of creativity, such masks pigora paper or forms.
2. The second form of management is sorting system for sale. HVS manifold paper separated from other types such as newspaper, and cardboard. Waste paper that has been sorted earlier sold to scavengers. Scavengers will periodically come to the school to pick up the paper.
Another type of rubbish in the school is pretty much plastic. Garbage is mostly made up of plastic wrap and a bottle of mineral water. For the latter type are now much sought after. Used bottles are made from PET plastic can be recycled into plastic pellets. Similarly, the former beverage cans are made of metal. This type of waste should also be sorted, collected for sale. Children can also be crafted creative crafts or wall hangings. The extreme way is bury or burn the plastic. 
I know very difficult to do it. But if we don't do that, who will do it? We must start from ourselves.
