wet well Articles | Environmental XPRT

AP500 Wet Well Mixer Customer Review

Common wet well problems Most wet wells across the country experience the same problems. "Flushable" wipes can accumulate to form a pump clogging mass of maintenance headaches. FOG can quickly take over too causing vacuum cleaning after vacuum cleaning. The short-cycle maintenance load caused by these common wet well problems can make some feel like they're only chasing their tail. Mixing ...

Jan. 31, 2017

By Medora Corporation

EVERLAST Wet well mounted pump station - Hazelwood West High School - Case Study

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 ...

Sep. 7, 2019

By Smith & Loveless Inc.

Wet Well Mixing Success With The GridBee® AP500

The GridBee® AP500 wet well mixer for lift stations officially launched in April 2015. From its very first installation it became clear this little mixer had some huge benefits in the world of lift station wet wells. Even then we didn’t have a true picture until bits and pieces of success story after success story started to make it our way. We thought we’d share a couple of them ...

Nov. 3, 2016

By Medora Corporation

FOG Degrader - Case Study

The images below show the degradation of fats, oils and greases by EnviroDEFENSE FOG Degrader in a wet well from a packing house. In one month, EnviroDEFENSE FOG Degrader removed more than 75% f the fats, oils and greases clogging the well and lines. Photo on the left shows the well before using Fog Degrader. The photo on the right shows the well one month after ...

Oct. 4, 2018

By BCMbio, LLC

Pumping Station Modifications to Comply with ANSI/HI 9.8 Improve Performance While Lessening O&M Requirements --- Two Case Studies

Oversized wet wells in wastewater pumping stations lead to the accumulation of grit, sludge and floatable materials. Trench-type wet wells in compliance with ANSI/HI 9.8, the American National Standard for Pump Intake Design, minimize wet well volume and facilitate wet well cleaning through periodic pump down operations. Two pumping stations, the Cross-Irondequoit Pump Station (CIPS), Monroe ...

Oct. 21, 2006

By Water Environment Federation (WEF)

Deep Well Measurement

Pulsar's superior echo processing was proven once again in this difficult very deep Welsh wet well application featuring a 23m 'shot' that needed to follow the level between the heads of two submersible pumps. The reliability and versatility of the advanced echo processing technology in Pulsars non-contact ultrasonic range has been utilised at the SwanseaWasteWater TreatmentWorks, in a 23m deep ...

Oct. 29, 2007

By Pulsar Measurement

Mixing an 8X8 Foot Lift Station Wet Well - Case Study

The GridBee AP500 defeats grease problem in less than a month. Topics: portable, no moving parts, 316L stainless steel construction, AU-200 System Overview: This Municipality has several lift stations of differing dimensions which experience fat, oil and grease (FOG) build up. They were looking for a solution that was easily portable for use in different lift station wet wells across their ...

Dec. 3, 2019

By Medora Corporation

Model Testing Optimizes and Verifies Design of a 200-MGD Trench Wet Well for the Sugar Creek WWTP

Charlotte-Mecklenburg Utilities (CMUD) and CDM are currently involved in the design of several treatment plant upgrades at the Sugar Creek wastewater treatment plant (WWTP) in Charlotte, North Carolina. Implementation of this project, which includes a 200-million-gallonper- day (mgd) screenings and influent pump station with dual self-cleaning trench-type wet wells, will provide CMUD with the ...

Oct. 21, 2006

By Water Environment Federation (WEF)

Castle Rock, Colorado Installations - Case Study

Mix a 37’ x 17’ lift station with an attached 12’ x 17’ lift station. PHI SOLUTION: PHI provided eight bubble forming plates located in the wet well pursuant to the CFD model. The system included one four-valve mixerwith Allen-Bradley PLC controller. The customer supplied a rotary screw compressor. RESULTS: The lift station is grease free and odorswerereduced to the ...

Jul. 24, 2020

By Pulsed Hydraulics, Inc.

STEM Drive Mixing system eliminates accumulation in wet well and allows removal of rags and grit at new headworks facilities - Carlisle WwTP - Penn, USA - Case Study

The Carlisle Regional Water Pollution Control Facility, a 7 MGD wastewater treatment facility, serves the Borough of Carlisle and portions of North Middleton, South Middleton and Middlesex Townships. Constructed in 1981, the raw wastewater enters the facility through a gravity sewer over 20 feet below grade. The raw wastewater discharges into a pump station wet well, where it is lifted to the ...

Mar. 28, 2020

By Stemdrive Ltd

EVERLAST Wet well mounted pump station - Texas School District - Case Study

For most small to medium-sized operations groups like Klein Independent School District in the suburbs of Houston, the conventional choice of submersible wastewater pumps holds little wisdom. Above-ground pump stations reduce exposure to designated confined spaces, and associated safety requirements, allowing these groups to operate in a more convenient and cost-effective manner. “With the ...

Sep. 7, 2019

By Smith & Loveless Inc.

Lift Station Odor Control Using CARUSOL Treating a Wastewater Collection System in a Mid-Western Township - Case Study

Summary A mid-western township is responsible for operating and maintaining a combined sewer collection system consisting of 150 miles of pipeline and 28 pumping stations. The township does not treat the wastewater, instead contracting with a neighboring city for this service. The township has two final lift stations that transfer the collected wastewater to the neighboring system for ...

Aug. 26, 2016

By Carus Corporation

Computation Fluid Dynamic Modeling of a Proposed Influent Pump Station

Traditionally pump intake hydraulics have been investigated using scale physical hydraulic models. Computational fluid dynamics (CFD) is a rapidly improving technology that in some cases can be used as a cost or time effective alternative to traditional physical model methods for evaluation of pump intake hydraulics. This paper presents a case study on the use of CFD modeling to re-evaluate and ...

May 7, 2007

By Water Environment Federation (WEF)

Cornell Lake Source cooling cleaning - Case Study

The project involved anchoring a sectional barge in 250′ of water on an inland lake, and recovering an intake screen weighing over 4 tons to the surface for cleaning and inspection. With the screen off, cleaning pigs (3) were sent through nearly 2 miles of 62″ diameter pipe to clean accumulated quagga and zebra mussels. There was miscellaneous work at the inshore Heat Exchange ...

Nov. 1, 2015

By Global Diving & Salvage, Inc.

EVERLAST Wet well mounted pump station - United Kingdom Hospital - Case Study

The Challenge Tough-to-access submersible pumps complicated life and increased costs for maintenance workers at the Royal Cornwall Hospital in Truro, United Kingdom. “Our original submersible pump sets were no longer maintainable by our in-house staff,” said Leslie Dey, Estates Officer for the hospital, “Keeping up with the training to send anyone down there would have been ...

Sep. 7, 2019

By Smith & Loveless Inc.

Municipal Wastewater Pump Station Design Problems and Solutions

The growth of the Northern Virginia Area around Washington D.C. has resulted in the requirement for numerous new wastewater pumping stations and the upgrade and expansion of existing pump stations. This paper presents practical problems and solutions associated with the following pump station design issues: 1.) Concrete Corrosion Protection, 2.) Corrosion Resistant Materials, 3.) Pump Protection ...

Oct. 21, 2006

By Water Environment Federation (WEF)

EVERLAST Wet well mounted pump station - municipal collection system - Case Study

“We knew our biggest problem was (our) lift stations, we just didn’t know exactly what to do about it.” The words of Jon Brown, former sewer system supervisor for Idaho’s Fremont County Public Works Department no doubt resonates with many of his peers around the country who are managing sewer and water treatment infrastructure. Lift stations (or pump stations) operate as ...

Sep. 7, 2019

By Smith & Loveless Inc.

Collection system aeration and the microbial benefits

In late 2015 Reliant Water Technologies introduced the Wet Well Wizard, an aeration tool for the wet wells in collection systems. During 14 months of field testing the patent pending Wizard System, the primary objectives were to eliminate FOG (fat, oil and grease) caps and to reduce H2S, eliminating it if possible. All trials were proven excellent with very few changes to the product that ...

Apr. 19, 2017

By Reliant Water Technologies

Case study - Shopping center avoids litigation by resolving sewer odor problems

Mazzei Injector Company, LLC is a recognized industry leader in gas to liquid mass transfer primarily from its proven 25 year experience with ozone applications. In addition, Mazzei has installed the same patented Venturi injector and mixing nozzle technology in many municipal and industrial wastewater systems in applications at lift stations, equalization tanks, aeration basins, activated sludge ...

Dec. 5, 2016

By Mazzei Injector Company, LLC

THE BACTAERATOR™ - for odour and blockage free pumping stations

Cleveland Biotech Ltd, market leaders in the field of applied environmental biotechnology, have developed another market leading application system - The Bactaerator™. Sumps, wet wells and pumping stations provide continual problems to all those responsible with managing and maintaining them, from pubs and supermarkets to drainage contractors and water companies. The problem most ...

Apr. 1, 2011

By Cleveland Biotech Ltd.

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