WE&T Magazine

Cover1_June15_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.

 


June 2015, Vol. 27, No.6

Featured Articles

Tanks full of savings

Feature 1 art In a 130-km2 (50-mi2) watershed in the northwest suburbs of St. Louis, Mo. — an area including Bridgeton, Hazelwood, and Florissant — the challenge to the Metropolitan St. Louis Sewer District (MSD) was to provide a cost-effective solution to eliminate SSOs and basement backups. Instead of building the traditional relief tunnel — an expensive and time-consuming proposition — MSD chose to pump the wastewater overflow into giant tanks at two sites. The excess flow remains in the tanks until it can be released gradually and safely back to the existing sewer.

 

When it rains...

Feature 3 art The Austin region in Texas is subject to frequent flash floods. Over time, the Austin Water Utility (AWU) has implemented flood preparedness measures at its two large water resource recovery facilities (WRRFs), including operational modifications, structural improvements, and facility expansion. 

 

News

Flushing away the discord

news Wastewater sector and manufacturers work toward solution for non-disposable wipes in collection systems   Read more

Coming in the next issue:
WE&T small

Transporting stormwater


The places that serve as hubs of action for communities and businesses often are the same places where stormwater needs arise. Roads, rail tracks, large storage areas, and other epicenters of activity support commerce and economic development but produce impervious surfaces and commercial processes that can lead to stormwater challenges.
 

In the Pacific Northwest, the Port of Olympia handles nearly 130 million board-feet of logs each year. Every log that moves through the port leaves behind bark and other organic material that accumulates and is washed into Puget Sound. To prevent this organic material from depleting the water’s oxygen supply and carrying particulates and other pollutants into the water, the port and its consultants turned to wastewater and leachate treatment techniques not often used for stormwater to create a unique solution. The resulting active treatment system not only meets permit limits, but also adds extra oxygen into Puget Sound. 

In contrast to the complex systems at the port, at Target Field Station, a central, multi-modal transportation hub and community gathering space in downtown Minneapolis, planners used low-impact development practices to achieve stormwater runoff reductions. Tree trenches, green roofs, and bioretention, as well as cisterns that collect runoff for reuse in an adjacent industrial facility help the stormwater management system not only meet, but also exceed requirements. The Target Field Station project exemplifies what can be achieved if all partners and reviewing agencies are engaged throughout the planning and design process. 

  

Also in this issue    

  • Smarter solids. Temporary installation of a rotary drum thickener during construction saves money and mitigates risk.   
  • Slimming down. Facility achieves cost-effective odor control through a series of small changes.   
  • Diamond in the rough. Redeveloping a water resource recovery facility along with a riverfront plan solves odor problems and improves aesthetics.