Other stories by P.E.

  • ‘Green’ building gets the gold

  • Battling the enemy

    Corrosion at wastewater treatment facilities gets little attention from upper-echelon managers and policymakers but is all too familiar to those who actually operate and maintain the plants. Until this year, the 20-volume ASM Handbook did not even specifically address corrosion in wastewater...

  • Upgrading to Class A anaerobic digestion

    More utilities are looking at producing Class A biosolids from municipal wastewater sludges as a way to reduce their regulatory requirements and improve their program's image with the public. The question is, what is the best way to convert an existing Class B biosolids digestion system into a...