Smith & Loveless Inc. articles
Recognized as authorities of bio-dynamic farming techniques and sustainable winemaking in France, family owners of a particular Sonoma County winery sought to utilize eco-friendly practices also in their California vineyards. After purchasing the winery in 2004, the family ownership began overhauling their vineyards and overall winery operation to revitalize every aspect of the winery, from soil to wine making.
For many years, the unified City-Parish Department of Public Works in Baton Rouge, La., has undertaken monumental capital improvements to expand its wastewater collection and treatment infrastructure. Following decommission of one WWTP and diversion of flows to an expanded and upgraded South Plant (SWWTP), the City-Parish estimated that more than $36 million per year will be saved in future long-term capital and operational costs.
In order to handle the increased
In the Sonora capital city of Hermosillo (Mexico) commenced plans for construction of a large new wastewater treatment plant that would handle and treat 90 percent of the flow generated by the area’s 1,000,000 residents. Project plans specified a conventional velocity channel grit removal system to protect the plant’s multiple extended aeration treatment basins. Project plans originally called for six velocity channel trains (each with associated pump, controls and concentr
Part of a 2016 expansion project, the Elkhart Wastewater Treatment Plant improved its grit removal efficiency and wet weather capacity by installing PISTA® VIO™ Grit Chambers in existing detritor grit basins. Unlike the other technologies considered, the PISTA® VIO™ allowed utilization of existing infrastructure in addition to providing improved efficiencies and capacities.
The two 20-MGD
When the Town of Marana, Ariz., experienced rapid growth, quick but effective treatment solutions to their existing municipal lagoons were sought. The upgraded facility required meeting three basic criteria: (1) expanded capacity in the short term to 150,000 GPD; (2) enhanced biological treatment capability to allow some (or all) effluent to be re-used; (3) be cost-effective because long-term growth would eventually require a replacement system ten times larger (or 1.5 MGD).
A
The main culprit causing regular pump clogs in the year-round resort community of Big Bear City, Ca. is one that is seen way too often at collection systems across the nation: consumer flushables.
“Nine times out of ten when we pulled a pump it would be clogged with rags, just clogged full of them,” said Andy Keller, Sewer Department Foreman, who estimated that the most problematic of the seven underground pump stations he operates was clogging as many as three to four
Odor problems at the Missoula Wastewater Treatment Plant were so bad at one point recently, that the city received more than 200 odor complaints from the public in one calendar year and a violation from the county health department.
“The nature of wastewater treatment is that there are odors,” said Gene Connell, Treatment Supervisor for the Wastewater Division in Missoula. “But we got some pretty severe complaints from the public.”
A large, Midwestern oil refinery installed two identical, 110’ diameter S&L Model R OXIGEST® treatment systems to solve a groundwater treatment problem on-site. Each plant incorporates aeration, clarification, and effluent holding, treating peak flows of 7.2 MGD combined; 4.3 MGD in each plant.
The plant operates with a Food-to-Mass (F/M) typical of extended aeration conditions while the hydraulic retention time is 4.2 to 6.25 hours. The (F/M) ran
When a St. Louis area high school determined it needed to replace an underground pump station after nearly 40 years of faithful service, school officials implemented a best value approach to the project with a local design-build firm. They evaluated three options: (1) replace all of the pumps and valves in the existing buried pit, along with associated electrical and control work; (2) abandon the dry pump pit and install submersible pumps into the existing wet well; and (3) install a S
When the City of Rogers designed and specified a new headworks facility at its award-winning wastewater treatment plant, they followed their internal philosophy to “do the very best job we can.” Grit removal had previously caused problems following large flow surges that often overwhelmed the original grit and scum system.
True to their philosophy, plant staff undertook a thorough evaluation process. Their course of action included numerous visits to other wastewate