video reflection B(Giving Packaging a New Life)

In today’s world, the raw materials shortage and limitation is seems to be a major challenge to human society. In order to solve it, scientists and engineers use the scientific methods and recycling machines to recycle the waste of product to become raw materials again. In the recent decay, those method and machine have been improved, and became more efficient and benefit for recycling. This summary will cover the following topics, which are:

1.     

Recycling paper

In today’s world, most of the paper manufactories are doing recycling paper as well. And it can be recycle up to 60% from the paper waste. Firstly, the paper sort into different quality, then the paper moves to pulper(contains chemicals and water),and dissolve into fibres. After that, the next process id deinking, which is remove printing ink and stickies materials (e.g. glue).Thirdly, some raw materials will be added to produce the desire paper type and quality. Then, it will spread on the thin and wide paper machine with pressed, drained and dried method. Finally, each row of recycled paper can up to 30 tones, and transfer to different factories to process for different purpose, for example, newspaper, tissue, etc.

2.     Recycling Tetrapak

Most of packaging of milk, juice, etc. will contain a thin polyethylene and Aluminium layer on surface, and it mainly made of a particular long and high graded paper fibres. First, put the tetrapak into pulper and then separate the aluminium and plastic, then the fibre can be used for the recycling paper, and the remained aluminium and plastic will use for cement production.

3.     Recycling Tinplate

Firstly, use the overhead magnetic board to separate the tinplate. Then, the tinplate will be compressed for the later steel works. And it can be produce up to 40% of raw material for steel producing in Germany. And 15000 of tin can make 9 billion new cans, and it is possible to recycle again without any quality losing.

4.     Recycling Aluminium

Firstly, aluminium cans, foil caps and yellow bags can be use the magnetic fields on the opposite direction to sorted it out. After preparation, the secondary raw materials can be process in the aluminium industry. After it melted, casted and rolled. Then the aluminium sheet can use for manufactory to printed, labelled or packaging. Finally, the waste of production will send to recycle loop directly.

5.     Recycling Glass

For the purpose of recycle glass, the different colour of glasses has to be separated before recycling. In the machine, the broken glasses will be separated. Then cut the glasses into 5mm and transfer the fragment to the monitor machine, which use for separate different colour of fragments, and it is extremely accuracy. Finally, the fragment will melted with soda, lime and sand, then form the shape to the bottle. Approximately 2.7 million tonnes glass are recycled each year. And it is twice as much as before.

6.     Recycling Plastics

Before, plastics are non-recycled and used the landfill method used for the waste for the plastic. And nowadays, more than million tonnes of plastics are recycled, which is more than 2/3 of the quantity in produce. Firstly, use the automatic technics to sort fractions, bottles, films, PET, other polyester and mix plastics. The machine converts the plastic waste into new products, use the fragment of polyester and compress to form a new shape. All the plastic films are melted and make it become new films. And the bottle will use to form the pipes and toys, etc. And the new technology can separate and identify the type of plastic and recycle it in more efficient way. In the machine, the bottles are clean and make it as fragment and removed the label. Then the PET chips wet with chemical and heat in the machine. In this process, the dirt and remain label will removed completely. Then, it will be dry and clean, and make the new bottle. Moreover, the mix plastic can use to produce methanol and other resources.

7.     

Sorting Innovations

Firstly, it is the dry mechanics processing and sorting the material according to size, then use the belt magnet to separate the waste contain ionic materials. Then, use infrared system to sort out the packaging of PET bottles. In the second step, wet the mechanic preparation of paper fragment. And the Aluminium is removed from the material stream an anti-current separator. And the plastic are separated use centrifugal separator. After drying, polyesters and polyethylene will directly into 

recombination.

In conclusion, the technology of recycling will be improved in the nearly future, and it seems to be a new reliable source other from raw materials. Recycling waste is a major effect and impact to human society, because it can be solve the problem of material shortage and limitation, also decrease the quantity of waste and improve the quality to the environment. Although the price of recycling material may be costly than the raw material, this method can decrease the quantity of waste, and the quality is as good as the product made in raw material. And it should be believed that the price of recycling resource will be lower than raw materials while the new technology have been developed, and improve the efficient of recycling.