12 clean water startups to watch in 2012

Summary:Systems for recovering and treating wastewater are notorious energy hogs, a concern that many of these early stage companies are hoping to address with their technology.

The Year in Review, the Year Ahead

Like most journalists with broadly defined beats, my personal bias shows up in the coverage choices that I make. So, even though I know pretty much any storage about electric vehicles that decide to post here will drive a gratifying increase in readership, my green-tech interests in the waning days of 2011 are focused on other fundamental matters. In particular, I've been thinking a lot about which developments in green water technology I should be following during the next 12 months.

After sifting through a number of resources, I've come up with this list of start-up or early stage companies that I'll be watching as closely as possible. All of the companies on this particular to-watch list are focused on technologies for treating wasterwater, and all of them have been part of various cleantech innovation competitions this fall. I've organized the list alphabetically and offered my brief rationale for planning to watch each company.

  1. APTWater (Long Beach, Calif.): Treats wastewater with an eye toward enabling reuse. The company merged with Europe's Rochem in November 2011 and boasts several municipal deals on its Web site.
  2. aquaMost (Madison, Wis.): Uses ultraviolet light and patented catalysts to purify water. In late November 2011, the company snagged $3 million in a second round of venture capital; it was also awarded a $1 million phase II Small Business Innovation Research grant by the National Institutes of Health.
  3. Aqwise (Israel): Develops biofilm technologies to remove nutrients, carbon and other substances. Has municipal pilot history in the United States and Spain.
  4. Arbsource (Tempe, Ariz.): Makes a reactor system designed to be used by food and manufacturing companies.
  5. Emefcy (Israel): Creates energy-efficient water treatment technology by using sewage-eating bacteria. In August 2011, the company snagged about $10 million in venture funding from GE, NRG Energy and ConocoPhillips.
  6. Fogbusters (Oakland, Calif.): Takes the FOG (fats, oil, grease) out of wastewater. Customers included Cadbury and United Biscuits.
  7. Magpie Polymers (France): The spinoff from Ecole Polytechnique focuses on treating heavily contaminated industrial wasterwater.
  8. Nexus eWater (Australia): Bills itself as maker of technology that can recycle graywater to a near potable condition, while also offering an alternative for reducing hot water energy costs. The company snagged two Australian grants in August 2011.
  9. Ostara Nutrient Recovery Technologies (Vancouver): Removes nutrients from wastewater and converts that into fertilizer than can be used by a revenue source. The venture capital-backed company has three recovery facilities in the United States and recently authorized one for Saskatoon, Canada.
  10. Pasteurization Technology Group (San Leandro, Calif.): Develops a wastewater disinfection system that creates renewable energy as its works. The company says it is poised to commence commercial shipments of its flagship product during 2012.
  11. Puralytics (Beaverton, Ore.): Uses nanotechnology, optics and light to purifying water.
  12. Vorsana (Portland, Ore.): Employs the concept of "radial counterflow" to create more efficients systems for water treatment, as well as separating flue gasses.

Topics: Start-Ups, Health, Storage

About

Heather Clancy is an award-winning business journalist specializing in transformative technology and innovation. Her articles have appeared in Entrepreneur, Fortune Small Business, The International Herald Tribune and The New York Times. In a past corporate life, Heather was editor of Computer Reseller News. She started her journalism lif... Full Bio

zdnet_core.socialButton.googleLabel Contact Disclosure

Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.

Related Stories

The best of ZDNet, delivered

You have been successfully signed up. To sign up for more newsletters or to manage your account, visit the Newsletter Subscription Center.
Subscription failed.