The following sample essay on “Recycling Garbage At Home”: how to sort and recycle garbage yourself.
Recycling is the process of converting waste materials into new materials and objects. It is an alternative to “conventional” waste disposal that can save material. Recycling can prevent the waste of potentially useful materials and reduce the consumption of fresh raw materials, thereby reducing: energy usage, air, pollution, and water pollution. Recyclable materials include many kinds of glass, paper, cardboard, metal, plastic, tires, and more.
Materials to be recycled are either brought to a collection center or picked up from the curbside, then sorted, cleaned, and reprocessed.
As mentioned in the paragraph above, a very residential way of recycling is doing it in your own home. Once your recyclables are filled up there is something that can help. A few times a week a service called “Curbside Collection” has recycling trucks coming around neighborhoods collecting trash. Another way to do it if your neighborhood does not have this luxury is to drop off your recyclables at collection centers where workers will be happy to take them off your hands.
Once your rubbish has been collected, it will usually be taken to a Materials Recovery Facility or MRF. The waste bags are opened and the waste is put onto a conveyor belt and moved into a processing area. First, the waste will go into a resort area, where any items that can’t be recycled are removed, and then the materials move into an area where they can be sorted automatically by machines, or manually by workers.
This is seen as the manual separation but it gets more complicated than that. Glass, plastic, metal, card, and papers are separated using trommels, which are screened cylinders or drums. This can be considered a sifting method because the smaller particles fall through the smaller holes. A 45mm trammel removes glass, and a 170mm trammel removes newspaper, paper, card, plastic, and metal.
Plastic, metal, card, and paper are further sorted by ballistic separators. Plastics are then separated by an optical scanner which can identify different plastics by colour.Huge magnets sort steel and tins, and an eddy current separator creates a strong magnetic field to disperse aluminium into a separate collection area. At last we have the magnetism separation that helps with metals.Paper is taken to papermills where it is made into newspapers, magazines, tissues, toilet paper and cards.Card is turned into cardboard packaging.Food tins are sent to steelworks, where they are recycled into anything from paperclips to coat hangers or even vehicle parts.Aluminium cans are made into new drinks cansPlastic bottles can be recycled into many different products, including garden furniture, road signs and fleece jackets.
General household waste is taken to an energy recovery facility, or ERF, where it is incinerated and the heat energy that is recovered is used to produce steam which can be used to generate electricity for the national grid.