how waste plastic can be recycled?

Plastic plastic everywhere around us and cannot be neglected from part of our life. This waste plastic can be used intelligently to develop various products. Some of the products that are being made from waste plastic are

1) Jeans

2) Fuel

3) Medium to pave roads

Levis made an initiation to make jeans from waste plastic bottles in order to decrease the adverse effect of waste plastic on environment. The final product jeans is assumed to contain about 20% of plastic recycled content which is about 12 to 20 oz (one ounce is about 28 grams) bottles per pair. The process of making jeans from plastic starts by sorting the plastic bottles and shredding them. This is done in order to remove unwanted liquid left in the bottles that have been used by us and later transformed in to pieces where this material is heated up and processed to make a fiber by adding some additives, from this cloth is made.

                   

      Plastic can be recycled to produce fuel, the process start by shredding and heating the plastic pieces in the absence of oxygen which is named as pyrolysis after heating in vacuum chamber the plastic is boiled which is filtered and distilled to produce fuel. This process is not harmful because it happens in the absence of air where plastic is melted not burned and no harmful gases are released in to the environment and the gases and sludge formed during the process of heating are reused as fuel for machine itself, the important part of this conversion is the choosing of type of plastic material to produce fuel. 

                                If we burn pure hydrocarbons, such as polyethylene and polypropylene we will end up in producing a fuel that burns fairly clean but burning PVC, and large amounts of chlorine will corrode the reactor and pollute the environment. HDPE (jugs) and LDPE (bags and films) are basically polyethylene usable as fuel as well, just slightly more polluting as a thicker heavier fuel is created. But additional processing can turn even HDPE into a clean diesel.

Similarly Plastics waste made out of PE, PP and PS can be used to pave roads,the process starts  cut into a small size of 4.75mm using shredding machine. The aggregate mix is heated around 165°c and transferred to mixing chamber. Similarly the bitumen is to be heated up to a maximum of 160°c to have good binding and to prevent weak bonding. At the mixing chamber, the shredded plastics waste is to be added. It get coated uniformly over the aggregate within 30 to 60 seconds, giving an oily look. The plastics waste coated aggregate is mixed with got bitumen and the resulted mix is used for road construction.