74-TONS OF SAND AND GRIT REMOVAL PERFORMED UNDER CHALLENGING CONDITIONS IN CENTRAL FLORIDA Access issues had prevented a covered splitter box at a Central Florida wastewater treatment facility from being cleaned.  A large amount of accumulated sand and grit had built up over time, and the structure was experiencing reduced capacity. So how was this splitter box cleaned while in service? A splitter box serves to separate influent flow to various structures such as aeration basins or oxidation ditches and can be hard to shut down or bypass flow in order to perform regular maintenance.  “Cleaning a structure while in

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15-YEARS OF BUILT UP MATERIAL REMOVED IN MOUNT DORA, WHILE IN OPERATION Two structures at the Mount Dora Wastewater Treatment Plant were overdue for cleaning, having built up a significant amount of sand and grit as well as other debris over the last 15-years.  USST crew mobilized to the site armed with the versatile Combination3® Truck, well-prepared to handle the multiple setups needed to complete the project. A large oxidation ditch measuring approximately 50-feet wide by 330-feet in length was the first structure the crew tackled.  While the structure was in full operation, USST utilized the Combination3® Truck’s downhole pump

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HOW 32-TONS OF SAND AND GRIT REMOVAL WAS PERFORMED IN SURCHARGED CONDITIONS U.S. Submergent Technologies (USST) recently performed sand and grit removal services for Miami-Dade’s Department of Transportation and Public Works on a 110-foot section of 60-inch surcharged stormwater pipe which was experiencing reduced capacity due to a buildup of sand. Aaron Hood, one of USST’s veteran Field Supervisors, lead the USST crew through the Miami-Dade project from start to finish, beginning with a pre-cleaning inspection, the removal of sand, and wrapping up with a post-cleaning inspection to confirm the work performed.  To prepare for the cleaning, an inspection was

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22-CUBIC YARDS OF SAND REMOVAL PERFORMED IN CENTRAL FL A Central Florida utility was experiencing reduced capacity in a splitter box due to a significant buildup of sand and grit.  Wastewater treatment facilities typically employ a splitter box to separate influent flow to various structures such as aeration basins or clarifiers.  This Central Florida splitter box had a visible level of sand above the water line that needed to be cleaned, and the structure measured approximately 40-feet by 25-feet.  The utility was also unable to divert flow or take the structure offline, adding another level of complexity to the project.

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SPEEDY SAND & GRIT REMOVAL PERFORMED IN DAYTONA, FLORIDA An oxidation ditch at the Westside Regional Water Reclamation Facility (WRF) in Daytona Beach, Florida was due for cleaning as part of a larger rehabilitation plan, having built up a significant amount of sand, grit, and vegetation.  Measuring approximately 550-feet long by 120-feet wide with walls 20-feet in height, USST mobilized to the site prepared to perform sand and grit removal services.  The crew completed the job in record time, well-ahead of schedule, motivated, perhaps, by being in the speed capital of the state. “U.S. Submergent [Technologies] completed their work ahead

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RAG & GRIT REMOVAL IN SOUTHEAST, FL An aeration basin at a Southeast Florida Water Reclamation Facility was experiencing reduced capacity and due for maintenance.  Measuring 206-feet in length and divided into eight 24-foot by 24-foot cells, the cleaning of the tank was part of a rehabilitation plan to repair and replace key components of the structure. U.S. Submergent Technologies’ (USST) Field Supervisor, Paul Del Favero, arrived with a team to the site prepared to perform rag and grit removal services.  In order to effectively remove the large quantities of sand, grit and rag material from the aeration basin, a

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107-TONS GRIT REMOVAL IN BAREFOOT BAY Barefoot Bay Advanced Wastewater Treatment Facility (AWWTF) was experiencing reduced plant capacity and due for maintenance on multiple structures as part of its rehabilitation plan for the facility.  Sand, grit, rags, and sludge had accumulated in the 0.9 MGD facility’s equalization tank as well as a 93-feet diameter multi-service tank. Having different types of structures onsite often require different methods of cleaning to get the job done. U.S. Submergent Technologies’ (USST) Combination3® truck is more than just a vac truck.  Sporting a vacuum, downhole pump, jetter and extendable boom on one chassis, USST’s Combination3®

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Multiple Structures in Full Operation While 194-CY Removed Five structures at a Northeast Florida Wastewater Treatment Facility (WWTF) were experiencing reduced capacity due to a buildup of sand and grit.  The WWTF, which manages an average daily flow of nearly 5 MGD, had three oxidation ditches and two wet wells in need of maintenance. Measuring 50-feet wide by 230-feet in length, the three oxidation ditches accumulated a significant amount of sand and grit material.  Aaron Hood, Field Supervisor at U.S. Submergent Technologies® (USST) mobilized the USST crew to the facility and was able to successfully clean all three structures while

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That’s 118,000 Thanksgiving Turkeys! A water reclamation facility in Central Florida was experiencing reduced capacity due to a buildup of sand, grit and rag material in their methane storage tank.  Due to the challenging nature of the 100-foot diameter, 24-foot domed structure, the facility’s tank, which had been converted to an overflow tank, hadn’t been cleaned in several years, resulting in the accumulation of a significant amount of material. With the help of USST’s Combination3® truck, the USST crew removed an astonishing 885-tons, which accounted for a total of 18-feet of material, from the tank in a two-part plan of attack,

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