Frequently Asked Questions

  • Surface water from rivers and lakes (natural and man-made) is extensively used globally to fulfil daily water needs. India also relies heavily on groundwater for agriculture, industrial and drinking water needs. Groundwater is fast depleting, especially on the western side of India, and many locations face the risk of arsenic and fluoride poisoning. Highly saline groundwater is also a common problem, rendering it useless without proper treatment.

  • The largest source are the seas and oceans which together contain 97% of all the water on Earth, however it’s highly saline and can’t be used without treatment. Water is also present in the air, in biomass and also permanently locked in glaciers and permafrost.

  • Air contains 12 quadrillion liters of water vapor which is almost ten times the water we have in all the rivers combined. This quantity of water can satisfy the needs of every huma being on earth for a year. Moreover, water vapor in the air is a very sustainable resource and gets completely replenished every 7-8 days by natural water cycle of evaporation and condensation.

  • A family of four usually consumes 15-20 liters of water per day for their cooking and drinking water needs. The consumption pattern is pretty similar in many countries.

  • FMCG industry uses more than 1500 Billion litres of water every year in end products. This is equivalent to 20% of drinking water demands of the entire human population. Major products like soft-drinks, beer, spirits, and hygience products have water as one of the major ingredients.

  • Our patent-pending technology uses a hygroscopic material in combination with solar thermal energy to source water from thin air. The hygroscopic material is used to adsorb the water vapor from the air and collected solar thermal energy is used to heat the hygroscopic material and separate the water molecules which are then condensed at ambient conditions to give liquid water.

  • 95% of commercially available AWG’s are based on condensation cooling technology which uses refrigerants and compressors to remove heat from the air and cool it. These systems run on electricity and consume large amounts of power. They are also very ineffcient in low humidity conditions. The other 5% of systems are based on liquid hygroscopic materials and inorganic salts which have proven to be hard to handle and require high maintenance. Uravu, on the other hand, uses a unique solid desiccant technology which combined with solar thermal energy is highly sustainable, simple to use and maintain, and gives reliable performance in all conditions.

  • The technology is highly scalable. Our modules can produce 20 liters to a million liters of high quality water per day.

  • The water produced is Type-I water as per ASTM D1193 and ISO 3696. Type-I water is considered as “Ultra” pure water, free from dissolved pollutants and microbes. In order to make water more suitable for human consumption, the Type-I water produced is passed through a mineral cartridge to increase the pH and add required minerals.

  • The air is passed through clinical grade HEPA filtration system, removing all the pollutants before it enters the module. The air used in the process of making water is thus pollutant free. Hence, the pollution in the environment does not affect the water quality.

  • All systems have a rated life of 15 years.

  • The system is designed to be a passive device with close to zero moving parts. There is no need for any regular maintenance. However, the mineral cartridge and air filters need to be replaced once in every 1-2 years. The unit will also require minimal cleaning to keep the solar collectors dust-free.