| The recycling of post consumer plastics is a | | | | Previous plastic recycling technology relies on |
| relatively recent phenomenon which is rapidly | | | | "float-sink" technology, according to which the |
| growing in importance due to growing popular | | | | target plastic was separated from waste of |
| support for recycling and the increased use of | | | | different specific gravities by grinding the feed |
| plastics in such consumer items as pop bottles | | | | material and choosing a liquid of appropriate |
| and milk bottles. The support is shown in such | | | | specific gravity to float off the waste and allow |
| programs as the widespread "blue box" curbside | | | | the target plastic to sink, or vice versa. However, |
| collection programs, which have been encouraged | | | | this method did not produce an end product of |
| by greater popular concern for environmental | | | | sufficient purity. Recently, hydrocyclones, |
| issues, legislation and the increasing cost of waste | | | | previously used in mineral separation and other |
| disposal by land fill. The result is a rapidly growing | | | | industries, have been applied to plastic separation, |
| supply of post consumer plastics for recycling by | | | | and these devices have produced a good |
| plastic recycling line . | | | | improvement over the old technology. For |
| Plastic bottles are everywhere and they make it | | | | example, European Patent application no. 88112333 |
| much easier for us to get the products we want | | | | published Mar. 1, 1989 discloses a system for |
| in lighter bottle than glass. It is important to the | | | | recovering plastics which uses a two-stage |
| environment that we recycle so that we can | | | | hydrocyclone step to separate the heavier PET |
| keep the plastic bottles out of our land fields.You | | | | plastics from lighter plastics and other waste. The |
| need to remember that plastic does not go away | | | | underflow from the first hydrocyclone in this |
| it will sit in a field and never decompose and this | | | | system feeds the second hydrocyclone and the |
| can cause a lot of problems. Greenhouse Gas | | | | underflow from the second hydrocyclone is |
| Emissions can be greatly improved when you | | | | dewatered, dried and sorted. |
| recycle and the best part is you will be helping to | | | | We can also reduce green house gasses because |
| improve the world we live in.You will also save in | | | | it takes more energy to make new bottles from |
| many other ways as well such as oil because it | | | | oil then to recycle old bottles by pet bottle |
| takes oil to make those plastic bottles that we | | | | recycling line . Make sure you have a place in your |
| use. If instead of throwing them away so they | | | | house that you designated as a bin that the |
| can sit in a land field then you can reuse them | | | | recycled bottles go and this will make it easier for |
| and you will use less oil. This is a positive thing | | | | all of your family to get involved.Remember that |
| because there is only so much oil available to us. | | | | recycling is a crucial part of saving the world we |
| The primary criterion for plastic recycling | | | | live in and with making a few changes it is easy |
| machines is the purity of the end product. Minute | | | | to start recycling. It is important to make it fun |
| contamination of the recovered plastic can greatly | | | | and get your whole family involved so that they |
| reduce the value of the recovered plastic. | | | | will be making a difference. |