‘As fresh water runs out around the world, the repurposing of waste water will become a high priority.’ Enter Elequa, the start up offering efficient, sustainable, inexpensive – and chemical free – water purification technology. Elequa uses an electrocoagulation reactor to send positively charged ions into the water, causing negatively charged pollutants like metals and particles to bond together. These can then be easily extracted, leaving behind pure water. Elequa’s goal is to make the technology widely available for all people and industries. Visit their website.