WE&T Magazine

Febcover07.jpgWater Environment & Technology (WE&T) is the premier magazine for the water quality field. WE&T provides information on what professionals demand: cutting-edge technologies, innovative solutions, operations and maintenance, regulatory and legislative impacts, and professional development.

 


February 2007, Vol. 19, No.2

Featured Articles

Ditch the Phosphorus

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When staff at the wastewater treatment plant in Commerce Township, Mich., began upgrading the oxidation ditch facility, they had three major considerations: increasing installed capacity, meeting an effluent phosphorus limit of 0.1 mg/L, and keeping costs manageable.

 

Less Power, Great Performance

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Membrane bioreactors are compact and provide high-clarity effluent without secondary clarifiers or filters, but as power costs continue to rise, their high energy use makes them difficult to justify on a life-cycle basis. 

 
A Georgia treatment plant dealt with this challenge by modifying both the design and operations of its MBR facility to be more energy efficient.

 

 

News

The Battle Over Biosolids

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Kern County, Calif., ban on Los Angeles biosolids delayed

Read more

Coming in the next issue:
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Coming in the March Issue

 

  • Prerequisite Pretreatment. Stable long-term operation of membrane bioreactors demands adequate pretreatment, particularly fine screening.
  • Let Them Wear Cake. A thin cake layer on the membranes can improve membrane bioreactor performance.
  • Smoother Options. What to do when pipe liners don’t behave.
  • Aeration Innovation. By switching to floating-brush rotor aerators, the City of Eden, N.C., has improved treatment plant performance and cut energy costs.
  • Extreme Construction. Building a wastewater treatment plant in Antarctic poses unique challenges.
  • From Sow’s Ear to Silk Purse. During a major upgrade, a Virginia facility saved millions by refitting its mothballed composting building with new solids handling equipment.
  • Are You Ready? These 10 steps can help utilities ensure an effective and efficient response to emergencies.