Difference between revisions of "Recycling"

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The term recycling commonly applies to recycling goods and consumer items.  For the large scale recycling of water and air, see [[Water Infrastructure|Water infrastructure]] and [[Life support]] articles.
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The term recycling commonly applies to recycling goods, [[Production|products]] and consumer items.  For the large scale recycling of water and air, see [[Water Infrastructure|Water infrastructure]] and [[Life support]] articles.
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Recycling is the third of the three R of waste reduction : Reduce, Reuse and Recycle.
  
 
A [[colony]] on [[Mars]] uses a number of materials to build everything they need for living. [[Mining]] or [[In-situ resource utilization|ISRU]] in the main way of adding materials to the settlement.  Importation from Earth or other planets is another.
 
A [[colony]] on [[Mars]] uses a number of materials to build everything they need for living. [[Mining]] or [[In-situ resource utilization|ISRU]] in the main way of adding materials to the settlement.  Importation from Earth or other planets is another.
  
To reduce the need for extracting or importing materials '''Recycling''' can be used.  Especially if the litter consists of only elements including just a few materials, and most easily if the pieces of litter are made from a single material. The concept requires special manufacturing that takes care to use pure single material if possible, or allows for easy disassembly.
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To reduce the need for [[production]] or importation of materials, '''Recycling''' can be used.  If the waste consists of products including just a few materials recycling is simplified. The concept requires manufacturing that takes care to use the simplest materials possible or that designs products for easy disassembly at end of life.
  
==Things made from single materials==
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==Products made from single materials==
  
 
*Bottles from [[glass]].
 
*Bottles from [[glass]].
 
*Boxes from plastics (e.g. [[polyethylene]]).
 
*Boxes from plastics (e.g. [[polyethylene]]).
*Tins from stainless [[steel]].
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*Cans from aluminum.
*[[insulation|Insulating]] [[foam]] from melted and expanded [[regolith]].
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*[[insulation|Insulating]] [[foam]] from melted and expanded [[regolith]] or plastics.
*Insulating foil, e.g. from polyethylene.
 
  
==Things made from a material composition==
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==Products made from multiple materials==
The following things need more than one material, but the materials can be separated easily for recycling:
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The following products need more than one material, but the materials can be separated easily for recycling.  Alternatively, some may be re-used directly.
  
 
*[[Electric cable]] from [[:category:metal|metal]] and plastics (e.g. polyethylene).
 
*[[Electric cable]] from [[:category:metal|metal]] and plastics (e.g. polyethylene).
*Insulating mat from mineral fibre and plastics casing (e.g. polyethylene).
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*Insulating mat from mineral fiber and plastics casing (e.g. polyethylene).
 
*Laminated safety glass.
 
*Laminated safety glass.
  
 
==Economics of Recycling==
 
==Economics of Recycling==
As the colony grows in size and population, the economics of the colony starts. Using free market it is easy to determine whether it costs more to mine material or to recycle it. Recycling may be a cheaper than mining in many cases.  This is already obvious on Earth, where plastics, lead, aluminum and steel have higher and higher recycled content as the recycling systems develop.
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As the colony grows in size and population, the economics of the colony starts. The free market will determine whether it costs more to extract new material or recycle the existing materials in products. Recycling will be cheaper than mining in many cases.  This is already obvious on Earth, where plastics, lead, aluminum and steel have higher and higher recycled content as the recycling systems develop.
  
==List of Materials==
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==List of recyclable materials==
This list comprises recyclable materials, that are really needed by an [[autonomous colony]]:
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This list comprises recyclable materials, that are really needed by an [[autonomous colony]], by order of importance and mass.
  
*[[Steel]] for [[digging machine]]s, pipes, [[building]]s.
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*Water - Water is typically recycled for most services using [[Water Infrastructure|water treatment]].  Some water will be consumed for propellant production and for energy storage.
*[[Synthetic materials|Plastics]] for [[greenhouse]]s, [[space suit]]s.
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*[[Carbon dioxide|CO2]] - For propellant production and plants.  CO2 is one of the rare products than can return to the environment before re-use.
*[[Glass]] for [[window]]s.
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*Ammonia and nitrogen - Nitrogen is an essential part of the life cycle and the settlement atmosphere.  Ammonia availability may be a limitation to settlement development so recycling will be important.
*[[Concrete]] for buildings.
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*[[Concrete]] - for structures and infrastructures.  Concrete can be recycled as aggregate on back into concrete.
*[[Silicon]] for [[solar panel]]s.
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*[[Steel]] - for [[digging machine]]s, pipes, equipment, structures, [[building]]s and infrastructure.
*[[Mineral fibrous insulating material]] for [[insulation of buildings]].
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*[[Synthetic materials|Plastics]] - for [[greenhouse]]s, [[space suit]]s and industrial products as well as infrastructure (wiring and piping).
*Aluminum and lithium
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*[[Glass]] - for [[window]]s and recipients.  As silica is the most common elements in the Martian crust, recycling may not always be advantageous compared to new production.
*Steel additives such as chromium and nickel.
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*
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*[[Silicon]] - for [[solar panel]]s and microprocessors.
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*Metals: Aluminum, copper, chromium and Lithium, lead.
  
 
==See also==
 
==See also==

Latest revision as of 09:21, 19 January 2021

The term recycling commonly applies to recycling goods, products and consumer items. For the large scale recycling of water and air, see Water infrastructure and Life support articles.

Recycling is the third of the three R of waste reduction : Reduce, Reuse and Recycle.

A colony on Mars uses a number of materials to build everything they need for living. Mining or ISRU in the main way of adding materials to the settlement. Importation from Earth or other planets is another.

To reduce the need for production or importation of materials, Recycling can be used. If the waste consists of products including just a few materials recycling is simplified. The concept requires manufacturing that takes care to use the simplest materials possible or that designs products for easy disassembly at end of life.

Products made from single materials

Products made from multiple materials

The following products need more than one material, but the materials can be separated easily for recycling. Alternatively, some may be re-used directly.

  • Electric cable from metal and plastics (e.g. polyethylene).
  • Insulating mat from mineral fiber and plastics casing (e.g. polyethylene).
  • Laminated safety glass.

Economics of Recycling

As the colony grows in size and population, the economics of the colony starts. The free market will determine whether it costs more to extract new material or recycle the existing materials in products. Recycling will be cheaper than mining in many cases. This is already obvious on Earth, where plastics, lead, aluminum and steel have higher and higher recycled content as the recycling systems develop.

List of recyclable materials

This list comprises recyclable materials, that are really needed by an autonomous colony, by order of importance and mass.

  • Water - Water is typically recycled for most services using water treatment. Some water will be consumed for propellant production and for energy storage.
  • CO2 - For propellant production and plants. CO2 is one of the rare products than can return to the environment before re-use.
  • Ammonia and nitrogen - Nitrogen is an essential part of the life cycle and the settlement atmosphere. Ammonia availability may be a limitation to settlement development so recycling will be important.
  • Concrete - for structures and infrastructures. Concrete can be recycled as aggregate on back into concrete.
  • Steel - for digging machines, pipes, equipment, structures, buildings and infrastructure.
  • Plastics - for greenhouses, space suits and industrial products as well as infrastructure (wiring and piping).
  • Glass - for windows and recipients. As silica is the most common elements in the Martian crust, recycling may not always be advantageous compared to new production.
  • Silicon - for solar panels and microprocessors.
  • Metals: Aluminum, copper, chromium and Lithium, lead.

See also