Case study
Warren County WWTP, Ohio - VLR 1 full of grit

Defeating the Warren County "grit monster"

Few wastewater treatment plants (WWTPs) get to experience the disaster of what actually happens if a plant has absolutely no grit removal in operation at the headworks. At Warren County, in Ohio,...

16 June 2016

Case study
Niagara County Waste Water Treatment Plant

Grit removal helps Niagara aeration process breathe again

Introduction Grit composition at the Niagara County Waste Water Treatment Plant (WWTP) in New York State is characterized by very fine, slow-settling particles. Undetected for eight years, it was...

13 June 2016

Case study
Donora WWTP Grit King®

Pennsylvania plant cuts $20K annual O&M costs

Introduction The Mon Valley Sewage Authority Wastewater Treatment Plant (WWTP) serves the Borough of Donora in Washington County, Pennsylvania and the City of Monessen in Westmoreland County,...

16 May 2016

Case study
A sewage digester at the St Bernard Parish WWTP, Louisiana

Reduced energy cost, increased capacity - St Bernard, Louisiana

The problem: a damaged, underperforming plant Meraux, Louisiana is located near New Orleans in St Bernard Parish, an area hard hit by hurricane Katrina in 2005. Excessive damage to the Parish's...

17 February 2016

Case study
Chart showing the typical cost to a wastewater treatment plant incurred per year due to grit missed by an aerated grit basin

Calculating the Cost Of Grit - Aerated Grit Basin

As much as 60% of grit is being missed Research conducted by Hydro International suggests that, on average, 60% of all grit is being missed by conventional grit removal systems. This grit passes...

29 January 2016

Case study

Protecting Oil Boom City from Wastewater Grit Damage - Bismarck, North Dakota

Rapid population growth pressures have seen extensive investment in public utility services in the City of Bismarck, North Dakota’s state capital, including expansion and updating its waste water...

12 January 2016

Case study
Photograph of influent at St Cloud WWTP, Florida, taken during a Hydro International operational performance evaluation test

Real-world performance evaluation - St Cloud, Florida

Situation As part of a new wastewater treatment plant (WWTP), the City of St Cloud, Florida’s Southside Wastewater Treatment Facility installed an 18’ diameter in-situ Grit King® advanced...

4 January 2016

Case study
Grand Island, Nebraska WWTP refurbishment project

Low maintenance and built-in redundancy - Grand Island, Nebraska

As a critical part of a $21.5 million upgrade to its wastewater treatment facilities, the City of Grand Island, Nebraska, has invested in an advanced grit removal system for high-performance grit...

16 December 2015

Case study
HeadCell units at Council Bluffs Water Pollution Control Plant, Iowa

Improved fine loess sand removal - Council Bluffs, Iowa

A successful project at the Council Bluffs Water Pollution Control Plant, Iowa, replaced an outdated aerated grit basin to improve fine loess sand removal and reduce digester cleaning in the...

9 December 2015

Case study
Aerial view of HM Weir Wastewater Treatment Plant, Saskatoon, Canada

Bridging the Gap Between Odor and Grit Removal - Saskatoon, Canada

Saskatoon is known throughout Canada as the “Bridge City” due to the seven bridges that cross the South Saskatchewan River in the city’s downtown district. Several kilometers to the north...

3 December 2015

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