Will you be ready?
George A. Beliew, Jr
Perhaps the largest change and most significant impact on the construction management industry will be the size and complexity of future projects — driven largely by the technologies we will have to build. As water and wastewater processes take new shapes, the gap between wastewater discharge and potable water supply soon will evaporate. Today’s typical water and wastewater systems will be replaced with new technologies and processes that ultimately lead to injection of treated wastewater into potable systems. Naturally, conventional treatment will still be essential, but increasing focus will be placed on removing arsenic, perchlorate, pharmaceuticals, and other compounds we can only guess at. Fortunately, we have emerging technologies that will help us with our new treatment goals, including membrane bioreactors, ultraviolet disinfection, ozone, and desalination.Read full article (login required)
This South Carolina treatment plant has a discharge system designed to handle effluent now and wastewater later
Andre Mathis and Anthony D. Greiner
For years, the 7570-m³/d (2-mgd) Grove Creek Wastewater Treatment Plant in Piedmont, S.C., had been discharging its effluent to Grove Creek, but when its National Pollutant Discharge Elimination System permit came up for renewal in 2005, the South Carolina Department of Health and Environmental Control announced that it was time for a change. Because of the creek’s low flows and the plant’s new effluent limits, regulators effectively mandated that the plant either change its operations — which would require new infrastructure — or start discharging its effluent to another, more appropriate receiving waterbody by July 1, 2008.Read full article (login required)
Elio F. Arniella, Paul Robinson, Nienke Eernisse, Donna Joe, and Jodi O’Brien
Geographic information system tools helped a Georgia utility make the most of its existing data
Hydraulic models of sanitary collection systems rely on lots of information from various sources. Usually data gaps are significant — especially in large systems — and the modeler must make adjustments to obtain model connectivity. If these changes are made without a set methodology, the database may become an adulterated mix of “iffy” and good data.
When the Gwinnett County (Ga.) Department of Water Resources began modeling its sanitary collection system, the project team wanted to avoid such problems.Read full article (login required)
U.S. Army Corps program benefits both dairy farmers and the environment
Who knew that eating ice cream could help protect the environment? New Yorkers who indulge in this creamy treat are supporting milk suppliers that are participating in an innovative watershed protection program.
The Precision Feed Management (PFM) Program, funded by the U.S. Army Corps of Engineers, is working with dairy farms in New York state to implement cow-feeding methods that lead to better water quality, better milk quality, and higher profits. In Delaware County, the program is led by the Cornell Cooperative Extension, along with a multiagency team that includes the Army Corps’ New York District, Delaware County, the New York City Watershed Agricultural Council, and the Delaware County Soil and Water Conservation District.Read full article (login required)
Teamwork paves the way to unique incinerator burner modifications
Shaun O’Kelley, F. Michael Lewis, and Robert Williamson
With natural-gas prices on the rise, the Blue River Wastewater Treatment Plant in Kansas City, Mo., decided in 2006 to see if it could fuel its multiple-hearth incinerators on plant-produced biogas. The project involved modifying the burners, originally designed to operate only on natural gas, to operate on biogas as well.
Close cooperation and teamwork among team members whose complementary process and theoretical skills in furnace and burner design, combined with the hands-on doggedness of plant engineering, resulted in a successful conversion and significant cost savings. Read full article (login required)
Using a shop vacuum and duct tape for foam control
Timothy Miller, Shane Boice, and Joseph Brilling
For several years, the Village of Andes (N.Y.) Wastewater Treatment Plant (WWTP) had experienced a familiar problem: heavy foam accumulation due to an overgrowth of nocardioform bacteria.
During the warmer months of the year, the plant’s entire sequencing batch reactor (SBR) surface would be covered with between 6 and 12 in. (150 and 300 mm) of thick, viscous foam. During the past few years, plant staff had limited success with several different measures to control the foam. However, the plant’s current operators — Shane Boice, Ed Budine, and Al Sebastian — recently developed a simple, homemade solution that makes nocardia foaming issues a thing of the past. Read full article (login required)
Operations Forum Features
Operations Challenge 2008
TRA CReWSers win Division I; Terminal Velocity takes Division II
The TRA CReWSers from the Water Environment Association of Texas won the Division I title. That makes three wins in the past 4 years for the CReWSers. In Division II, Terminal Velocity from the Virginia Water Environment Association earned first place overall. In addition their overall victory, the members of Terminal Velocity secured trophies in all five events.
Also find out which team traveled farthest to compete and well as hear from the competitors the benefits of participating in Operations Challenge.