Reuse Wnd Recycle Flashcards
What is sustainable development
An approach development that takes account of the needs of present society why not damage in the lives of future generations
What can chemist do to reduce the use of finite resources
Develop and adapt processes that use lower amounts of finite resources and reduce damage to the environment for example chemist have developed catalyst that reduce the amount of energy required for certain industrial processes
Copper is a finite resource what is one way to improve its sustainability
Buy extracting from low-grade ores
Extraction of copper using bioleaching
Bacteria are used to cover copper compounds in the euro into soluble copper compounds separating out the copper from the ore in the process
The leachate (solution produced by the process) Contains copper ions which can be extracted by electrolysis or displacement with a more reactive metal
How can copper be extracted using phytomining
Involves growing plants in soil that contains copper plants can’t use or get rid of copper so he’s gradually builds up in the leaves
Plants can be harvested dried and Burden are furnace
Ash contain soluble copper compounds from which copper can be extracted by electrolysis or displacement using scrap iron
Why is recycling metals better
Luke is much less energy than is needed to mine and extract new metal conserve the final amount of each metal in the earths cuts down on the amount of waste getting sent to landfill
How are metals recycled
Melting them and then casting them in to the shape of the new product
What is a blast furnace used for
To extract iron from its ore as a high temperature using carbon
How can glass bottles be reused
Don’t have to be reshaped
How is glass recycled
Separated into colour and chemical composition glasses crush the melted to be appreciate for use in glass products such as bottles or jars might be used for different purposes such as insulating glass wool for insulation in homes
