Water Purification in Atmospheric Water Generator

Abstract

Atmospheric Water Generator (AWG) is a machine that could save the Earth from running out of fresh water in the future. It is considered a perfect method for water production in countries that has high percentage of humidity. This machine extracts water from humid air using a power source that is used for decreasing the air temperature until reaching its dew point. At which water is condensed and collected to be used in different applications. But the collected water is considered distillate water as it doesn't contain any minerals that are very important for human health. Consequently, the collected water has to be treated to be compatible with the standards of drinking water. In this paper, spectrophotometer is applied to obtain the concentration of several constituents exist in the collected water, then water passes through ultraviolet unit to be disinfected, and finally minerals are added with specific quantities. The verification is achieved via simulation for mineral treatment process using Aspen HYSYS simulation program. While the validation is performed by experimental work for other processes. The results affirmed that the generated water is potable and satisfy the market needs according to the Egyptian standards. These results are also consistent with World Health Organization standards (WHO).