WE&T Magazine

May07Cover.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.

 


May 2007, Vol. 19, No.5

Featured Articles

Going It Alone

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 Faced with a consent order to eliminate sanitary sewer overflows (SSOs), the City of Lawton, Okla., needed to act quickly. After a thorough inspection of its collection system, the city knew what work had to be done, but it needed to decide how to do it: Take the traditional route of contracting the work, or perform the work itself.

 

Scum Busters

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To gain greater quality control over the periodically scum removal from its secondary anaerobic digester, the Hanover Sewerage Authority (Whippany, N.J.) developed procedures to perform the job in-house.

 

News

Sleuthing Collection Systems

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Urban underground collection systems often are so complex that simulating the flow path of stormwater runoff can be difficult in large or older cities. Researchers are working on a novel approach that would give stormwater managers an
edge in designing and reconfiguring collection systems for meeting new conditions.

Read more

Coming in the next issue:
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June
  • Sizing Denitrification Filters. Extensive modeling enabled designers to develop cost-effective denitrification processes for two very different treatment plants.
  • Hard Lessons, Simple Truths. Restoring large water systems requires the willingness to learn from experience — and time
  • Testing the Watershed. North Carolina’s NPDES Discharge Monitoring Coalition Program enables basinwide monitoring and analysis.
  • Taking the Long View. The journey toward sustainable water resources management begins by determining the most important water issues and indicators.
  • Double Duty. Continuous backwash filtration techniques can serve as attached growth processes for biological conversion of nitrogen and polishing units for phosphorus removal.
  • Let It Snow. A membrane bioreactor system provides the flexibility and level of treatment needed for a seasonal ski resort.
  • Biological Limitations. Most wastewater treatment professionals assume that biological is better when it comes to nutrient removal, but chemical processes may be better at achieving strict effluent phosphorus limits.