About 2.2 billion people, more than a quarter of the world’s population, lack access to safe, managed drinking water, and about half of the world’s population experiences severe water scarcity at some point during the year. To overcome these shortages, huge socioeconomic costs are being spent on sewer irrigation and alternative water sources such as rainwater reuse and seawater desalination.About 2.2 billion people, more than a quarter of the world’s population, lack access to safe, managed drinking water, and about half of the world’s population experiences severe water scarcity at some point during the year. To overcome these shortages, huge socioeconomic costs are being spent on sewer irrigation and alternative water sources such as rainwater reuse and seawater desalination.Engineering[#item_full_content]