Relaimed Water (Water Recycling)

Water is one of the most important and critical factors required to sustain human life – if not the most important alongside air to breath and sunlight. It is also a natural resource that is a major problem in many countries and is expected to become a problem in the future. Water shortage is something more and more countries across the world suffer from and many say that future wars and conflicts will revolve around control of water sources.

Water shortage can be the result of dry climate, a specific climate crisis and also improper water management in a local, national or cross-national level. Also, water is expansive to produce, the production sometimes creates other problems and overall the trend is to reduce consumption of natural resources and to find better, wiser ways to sustain human life and growth.

All of the above reasons lead us to the importance and implementation of water recycling and the use of reclaimed water.


Reclaimed water or recycled water can be treated wastewater, treated sewage or water from ordinary domestic water use that does not involve the toilet – What is commonly known as Greywater. Reclaimed water can also refer to recovery and storing of rain water. Its reclaimed water as after a treatment and purification process the used water can be reclaimed and used for various purposes.

Water recycling or water reclamation requires the removal of solids and a variety of impurities. Water recycling and the use of reclaimed water are done for economic, sustainability and water conservation purposes. All these different process to treat wastewater and reuse it for various uses comes to replace less sustainable and environmental customs that are still used and were much more common in the past – mainly discharging and flowing the wastewater (before or after treatment) into rivers, wetlands or the oceans. Of course that sending untreated wastewater to water sources and eco-systems is extremely not ecological.

Reclaimed water and water recycling processes can be used to produce water for more sustainable landscape and agricultural irrigation, industrial needs, recharging underground water aquifers or other water habitats and reuse for domestic uses with regards to greywater recycling or rainwater collection.

Reclaimed wastewater and reuses

The majority of reclaimed water and water recycling processes performed globally is wastewater that was treated in various methods to make it suitable for reuse. This referrers to domestic and industrial wastewater mainly that flows to water treatment plants through sewerage systems. The method of recycling this water and reclaiming it for a diverse variety of uses is complex and involves physical, chemical and biological processes that eliminate solids, pathogens and other materials.

Common uses of reclaimed wastewater are:

  • Agriculture irrigation
  • Constructing or improving wetlands and water habitats
  • Drinking in very rare cases and countries
  • Industrial needs

Domestic water recycling and collection

Grey water is all the water from sinks, showers, bath, laundry machine etc. from domestic or commercial use – basically anything but toilet water. Water recycling of greywater uses various household systems and methods and the water is used to flush toilets, irrigation, cleaning. Same goes for reclaimed water from rain collection into tanks or pools.

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