Conventional wastewater treatment systems are designed for treating wastewater to a level that prevents pollution. They are not normally designed for re-use.... and even if they were designed for re-use, the use of the treated wastewater was limited to irrigation (and even then with several limitations depending on the application). The HOTER process provides for safe, cost effective re-use of ALL the wastewater discharged from a hotel premises, large commercial buildings and even villages.
You may be surprised to know that the world is increasingly becoming more dependent on seawater desalination as a means of producing clean fresh water. This is a very energy intensive process (requiring around 5-6 kWh/m3 of high-grade energy i.e. electricity). In 1995, 15% of my country's electricity consumption was being used to produce 50% of the country's townwater (the rest coming from groundwater). That is a lot of CO2 emissions.
Dear Giovanna Barbaro,
I have just commissioned a professional public perception study among hotel guests and to my surprise the great majority of hotel guests would not mind having their showers/wash-hand basins/baths supplied with recycled water - as long as the water is certified by the public health authorities.
Indeed, how many hotel guests ask about the source of the water in the hotel? What they're interested in is whether the water is safe or not.
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by Marco Cremona