Let's make recycling blue

14-19 yrs    Targeted audience: 14-19 years old students.

A versatile system for a sustainable recovery of Critical Raw Materials from water

Nowadays Prussian Blue can be used to capture critical raw materials in order to recycle them. As a matter of fact, these materials are really rare and expensive. Its particular structure can interact with CRMs isotopes and capture them. Actually, it is also used in the pharmaceutical sector to soak up dangerous substances in infected hosts. (download pdf).




Soil Power

14-19 yrs

Assembly of several , microbial fuel cells for electricity production testing several carbohydrate rich nutrients. (download pdf)


Solid phase ion-exchange in recycling processes (cation exchanger)

red

Diluted aqueous solutions of metal salts are obtained during recycling processes. The use of ion exchange resins has been proofed to be the process of choice in this field (download pdf).

Flotation

14-19 yrs

Flotation Deinking is the industrial process of removing printing ink from paper fibers of recycled paper to make deinked pulp. In Europe the most common process is froth flotation deinking (download pdf).

Separation of copper and iron - two approaches

14-19 yrs

  • Precipitation and leaching: A more or less complex mixture of metal salts can be separated in the pure metals using a sequence of reactions causing some components to precipitate. This strategy is utilized in gold mining operations where gold is leached using cyanides.  (download pdf).
  • Anion exchanger: Separation of Cu2+ and Fe3+ by an ion exchanger (exchange resin) and the following detection reactions. (download pdf)

    • Saving copper from waste

    10-13 yrs

    Saving copper from waste. (download pdf)

    RM ∈ HDD

    14-19 yrs

    Identify rare earths within a Hard Disk Drive (HDD) (download pdf).

    RM HDDSeltene Erden in einem Festplattenlaufwerk (HDD) bestimmen (herunterladen pdf)