TUCSON, ARIZONA — An innovative scheme in Arizona is using recycled wastewater to brew beer. <br /> <br />The Arizona Pure Water Brew Challenge aims to raise awareness about water issues, according to the campaign's official website. <br /> <br />Treated wastewater is pumped into a truck fitted with state-of-the art filtration systems. At this point, the water isn't potable and is only fit for irrigation. <br /> <br />Inside the truck, the water undergoes reverse osmosis and is treated with ultraviolet light. A peroxide solution is then added. Finally, the water is run through a carbon filtration system, to produce drinkable water. <br /> <br />The truck will deliver the water to breweries around Arizona, which will use it to make beer.
