The Recycling Factory

Dear Mr. Smith,
I have come up with a solution to separate the recycleable materials, which are aluminum, steel, plastic from milk jugs, and plastic from soda bottles. Here are the steps:
1st load all the materials onto a long conveyor belt. Next use the powerful magnets hanging above the conveyor belt to pick up the steel. That will seperate the steel. Next put everything else in the large tank that will be filled up with sugar water with a density of 1.5 g/cm^3. The aluminum should sink to the bottom because it has a higher density than the sugar water. The plastics from the milk jugs and soda bottles should float to the top. Use the nets to scoop up the aluminum from the bottom. Heat the water to evaporate it and get the plastics from the milk jugs and soda bottles by themselves. Put them in the large tank filled with water. The plastic from the soda bottles should sink to the bottom because it has a higher density than the water. Collect that from the bottom of the tank with the nets and put it aside. Next use the nets to get the plastics from the milk jugs, which are floating, from the top. That is how you separate the materials.
Sincerely,
Tom Chemmalakuzhy