Wastewater Visibility News

Wastewater engineering, utilities, and wastewater infrastructure news and updates from SediVision and US Submergent Technologies. The Wastewater Visibility News blog is available online or by subscription.
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December 16, 2021

Sanitary Sewer Overflows – Is There a Solution?

USST’s See, Clean, & VerifyTM Services Save Time and Money Sanitary Sewer Overflows – Is There a Solution?  Yes, especially if the overflow is caused by an obstruction.   When working with a customer who is facing issues with sanitary sewer overflow (SSO) U.S. Submergent Technologies (USST) first tries to understand the problem.  At USST, our experience has been that every sewer pipeline system is unique and collects debris differently and gaining visibility into the pipeline is the first step.  Recently, a county in Southwest Florida was at risk of SSO from their large diameter sanitary sewer pipeline, which encompassed over

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December 2, 2021

977 Tons of Sand Removed From EQ Tank

A Massive Job Calls for USST’s Expert Knowledge A large primary clarifier serving as an equalization tank at a city’s wastewater treatment facility had accumulated 16-foot-high mounds of sand along the bottom, seriously reducing its capacity and potentially passing grit through the treatment process.  U.S. Submergent Technologies’ (USST) expertly trained crew set about to handle cleaning this massive 125-foot in diameter structure.  “Our knowledgeable crews have a proven keen ability to navigate obstacles on the ground and this job presented some unique challenges,” said Paul Del Favero, Operations Manager at USST.  “This tank was huge, it’s covered, and the walls

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November 30, 2021

Probing vs Complete Visibility Inside Wastewater Tanks

Traditional wastewater probes don’t always find everything. Find out how SediVision helped one central Florida wastewater treatment facility recover capacity by giving them complete visibility into their tanks.

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November 30, 2021

Probing vs Complete Visibility Inside Wastewater Tanks

SediVisionTM Reveals Over Three Times The Amount Of Material Than Estimated In central Florida, a wastewater treatment facility was experiencing loss of capacity and inefficiency with one of its aeration basins.  They probed this 140 by 40-foot digester from a few accessible spots along the walkway and hit concrete every time, indicating minimal material buildup.  However, the aeration basin was still using more energy than required and seemed to be suffering from a loss in capacity.  This facility could not logistically drain this tank down and wanted to know precisely what was occurring under all that dark water.  U.S. Submergent

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September 28, 2021

Laser Focus: Safety on the Road at USST

On any given day at U.S. Submergent Technologies (USST), crews mobilizing Class 8 (any vehicle over 33,000 lbs.) commercial vehicles equipped with specialized cleaning equipment, depart from our operations hub in Orlando Florida.  Their destinations are wastewater treatment facilities and critical wet infrastructure all over Florida and parts of the Southeast.  Their purpose is clear; to safely restore the capacity of wet infrastructure nobody notices but everybody relies upon.  When this professional group of experienced and knowledgeable CDL drivers gets on the road, one word, and one thing is at the top of everyone’s list, safety.   “At USST, we

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September 28, 2021

364 Tons of Material Removed from Town’s Wastewater Plant

USST Crew Responds to Changed Conditions Adeptly In rural Northeast Florida, a municipal wastewater treatment plant operating at .4 MGD was reaching critical capacity loss with their surge tank.  This large multi-chamber tank, which is essential to the overall health and functionality of daily operations at the plant, required cleaning.  U.S. Submergent Technologies (USST) was called in to assess the structure and remove the buildup of sand and grit throughout this wastewater tank. “This project was estimated to have 36 tons of material in the tank, but once we got on-site, we were dealing with at least seven feet of

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August 31, 2021

Case Study: 630-Tons of Sand & Grit Removed from Oxidation Ditches

Florida Sand and Grit Grant Program Covers Restoration Costs PROBLEM: Two oxidation ditches at two wastewater treatment plants serving the City of Mount Dora were due for cleaning, having accumulated a significant amount of sand, grit, and debris over 15-years. This loss of capacity was increasing energy costs and reducing efficiency at these treatment plants. U.S. Submergent Technologies’ (USST) knowledgeable crew was called-in with our versatile Combination3® Truck, able to handle multiple setups to complete these projects. SOLUTION: A large oxidation ditch measuring approximately 50-feet wide by 330-feet in length was the first structure our crew tackled. While this oxidation

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July 29, 2021

Over 55 Tons of Material Removed From Municipal Wastewater Plant

USST’s Crew Navigates Tight Spaces and Difficult Access A municipal wastewater treatment plant in Central Florida required regular maintenance on their aeration basin, digester, and headworks to remove built-up sludge, sand, grit, and rag material.  U.S. Submergent Technologies (USST) was called in to tackle the job using our powerful and versatile Combination3® Truck and knowledgeable crew. “This was our third time back to this facility for regular maintenance,” said Paul Del Favero, Operations Manager at USST.  “Our company track record of safety on the job site and our crews’ ability to understand and overcome problems on the ground are all contributing

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June 29, 2021

Case Study: 402-Tons of Material Removed from Oxidation Ditch While in Operation

Florida Sand and Grit Grant Program Aides in Restoration Costs PROBLEM: An oxidation ditch at the Lake Wales Wastewater Treatment Plant had accumulated over the course of a few years a large amount of sand and grit material. This accrued material was causing a loss of capacity, a decrease in flow, and the plant was not functioning efficiently. The facility’s treatment process is comprised of a Type 1 Oxidation Ditch operating as a conventional activated sludge treatment facility measuring 320-feet by 70-feet. U.S. Submergent Technologies’ (USST) knowledgeable and experienced crew was called in to clean this large structure while it

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