AWT | Advanced Water Technology

  We Might Be Solving One Planetary Boundary by Quietly Stressing Another In 2009, Johan Rockström and the Stockholm Resilience Centre defined Nine Planetary Boundaries — the "safe operating space" within which human civilization can keep enjoying the stable Holocene conditions it evolved in: 1)climate change, 2)biosphere integrity, 3)land system change, 4)freshwater change, 5)biogeochemical flows, 6)novel entities, 7)ocean acidification, 8)stratospheric ozone depletion, and 9)atmospheric aerosol loading. Seven of the nine have already been crossed . 🌊 A 10th boundary is now on the table: Aquatic Deoxygenation .   Dissolved oxygen in lakes, rivers, and coastal waters is falling — driven by two compounding forces: warmer water simply holds less oxygen, and nutrient runoff (nitrogen and phosphorus) fuels algal blooms that consume oxygen as they decompose. The result is expanding dead zones, biodiversity collapse, and — less obviously — the release of potent greenhouse g...

  Advantages of the Integrated Desalination Process Part 1/5 Advantages of the Integrated Desalination Process — Part 1/5: Recovery Rate Most RO systems settle at ~75% recovery and call it optimized. That's not a limit of the membrane. It's a symptom of what's hitting the membrane. Push RO past 80% and hardness (Ca/Mg) starts precipitating on the membrane surface — scaling, fouling, more frequent cleaning. So most systems just... stop pushing. We asked a different question: what if RO never had to fight hardness in the first place? CDI (capacitive deionization) sits upstream and selectively pulls out the hardness ions before RO ever sees them — no chemicals, just an electric field and porous carbon electrodes. RO inherits clean, low-scaling-potential water, and can safely run into the low-to-mid 90s. Add membrane distillation on the final reject stream, and the full train reaches 99.8% recovery. The lesson: don't make one component do all the work. Make the upstr...