WE&T Magazine

WET_cover1_July14_90Water 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.

 


July 2014, Vol. 26, No.7

Featured Articles

Drought and deluge

Feature 2 mason Maintaining compliance with permitted levels of heavy metals in wastewater discharges is hard enough when conditions are ideal, but the challenge becomes far more difficult when you’re operating biological treatment lagoons and ideal operating conditions deteriorate.

 

Pipe and site constraints work against Plan A

feature 1 askavarian During emergency repair work to a massive prestressed concrete cylinder pipeline in Baltimore in 2009, several unknown problems forced the project team to adjust to changing conditions while sticking to a tight schedule and budget.

 

News

Waste not, want not

news Scientists further research how astronaut urine can be used as a source of energy in outer space. Read more

Coming in the next issue:
WET_cover1_Aug14_90

Data makes the difference

Every utility decision should be based on solid data. Improving the collection, analysis, and use of such data as laboratory tests, collection system assessments, flow calculation and measurements, and energy production and use all leads to more nimble operation. 

When it comes to physical and chemical analyses, sensors and probes can provide quick readings as well as centralized access to data with a supervisory control and data acquisition system. But making sure those tools are working properly takes extra effort. The article, “Sensor calibration, maintenance, and validation,” will instruct readers on lessons learned from operating advanced instrumentation to support nutrient removal. 

The article, “A process of elimination,” will show the power of leveraging targeted data collection for larger projects. A new entrant in sewer evaluation techniques removes unlikely inflow and infiltration sources first, saving resources for priority areas. 

Close examination of data also enables facilities to make the most of their investment dollars. Utilities that aggressively have pursued energy-efficiency improvements and on-site generation opportunities have been able to reduce energy costs by as much as half. The article, “Put your energy inefficiency to work,” explains how even though these reductions usually require capital investment, carefully selected and managed projects can save more than they cost to complete, freeing up operating monies for other budgetary needs. The article focuses on getting the most from energy savings performance contracts. 

  

Also in this issue    

  • It’s a small world after all. A highly visible decentralized reuse facility in Anaheim, Calif., demonstrates innovative and practical approaches to water recycling and conservation.   
  • Growing more nimble. Energy-efficiency upgrades to a membrane bioreactor slashes the power bill while improving compliance and operability.   
  • Cultivating a solution. Researchers at USGS and NOAA study the effects of oyster aquaculture on nutrient removal.   
  • A lab in a pill. Researchers at McMaster University condense a water contaminant detection method into a capsule inspired by breath-freshening strips.