ch2m-hill

  1. Upgrade Chemical Feed Systems With No Shutdown Required 9/11/2026

    Pre-engineered chemical feed skids can help treatment facilities replace aging systems quickly while maintaining dosing continuity, reducing installation complexity, and minimizing operational disruption.

  2. How To Cut Aeration Energy Costs In Half 9/11/2026

    Integrated aeration systems combining efficient diffusers, advanced blowers, and intelligent controls can significantly reduce wastewater treatment energy consumption and operating costs.

  3. How To Intensify Phosphorus Removal While Reducing Costs And Footprint 9/11/2026

    Ballasted clarification provides intensified phosphorus removal with a smaller footprint, lower chemical and water consumption, and flexible retrofit options for wastewater treatment plants.

  4. Meeting Stringent Nutrient Limits With Gravity-Fed Biofiltration 9/11/2026

    Gravity-fed biofiltration helps wastewater plants meet stringent nutrient limits while minimizing energy use, simplifying operations, and providing durable, adaptable tertiary treatment.

  5. Is Wastewater-Derived Bioplastic Utility-Ready? 9/9/2026
    For years, researchers focused on a basic question: Can mixed microbial cultures use real wastewater or sludge-derived carbon to accumulate polyhydroxyalkanoates (PHA) inside their cells? Recent evidence has strengthened the answer.
  6. Why OT Cybersecurity In Water Treatment Starts Before Design 9/9/2026

    Growing connectivity, new regulations, and long-term operational requirements are pushing cybersecurity decisions into the earliest stages of industrial project design.

  7. What Utilities Don't Know About GAC Reuse For PFAS 9/9/2026
    For utilities building PFAS treatment systems, thermal reactivation of spent granular activated carbon (GAC) may sound like the obvious answer. However, service provider availability and location, specific media acceptance criteria including quantity thresholds, restrictions on GAC type and condition, and regulatory uncertainty can all determine whether reuse is a viable option.
  8. Beyond Water-Stress Scores: Assessing Infrastructure Resilience At The Asset Level 9/9/2026
    Water-stress screening can identify where an infrastructure asset deserves closer attention. Assessing resilience requires further steps: understanding the asset’s water profile, the reliability and security of its supply, the pressure it places on local resources, and whether adaptation can keep it operational and economically viable over time.
  9. Colorado River Conservation Depends On The Delivery System 9/8/2026
    The Department of the Interior issued the 2027-2028 Operating Guidelines, calling for Lower Basin deliveries to drop by 1.25 million acre-feet annually in 2027 and 2028, with a minimum of 700,000 acre-feet of additional voluntary conservation over those two years. While temporary reductions are a start, water districts and water professionals should also consider delivery upgrades and on-farm improvements in agricultural areas that prepare growers for a new reality with less water.
  10. Don't Ditch The Ditch: New Oxidation Ditch Technologies Enhance Nutrient Removal 9/7/2026

    Advanced oxidation ditches combine multichannel treatment, efficient aeration, and smart controls to improve nutrient removal while reducing energy use, maintenance, and infrastructure requirements.