San Diego and Dallas-based Liquid Environmental Solutions, a provider of non-hazardous liquid waste collection and treatment, has received $20M in an investment from Los Angeles private equity firm Craton Equity Partners. According to Craton Equity Partners, the funding will go to expand operations and geographic reach. Craton Equity is focused on clean technology investments. Liquid Environmental gathers grease trap waste from restaurants, fast food chains, and others. More information »