A bucket containing typical wastewater grit and other solids

Grit Characterization and Optimal Grit Removal Using the HeadCell® Device

Grit Characterization and Optimal Grit Removal Using the HeadCell® Device Robert Y.G. Andoh Abstract Grit capture and removal from wastewater streams has increasingly become a critical process...

5 February 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

News & Opinion

The Cost Of Grit - Q&A with Keith Hutchings

Q. Is grit a significant factor in the cost of running a Wastewater Treatment Plant (WWTP)? If so, how? A. The abrasive nature of grit has long been recognised as a major factor causing wear and...

22 December 2015

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A successful project at the Council Bluffs Water Pollution Control Plant, Iowa, replaced an outdated aerated grit basin to improve fine loess sand removal and reduce digester cleaning in the...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

Grit particle settling - refining the approach

Grit Particle Settling – Refining the Approach

Abstract Grit settling velocity is significantly impacted by variability in size, density and shape. The conventional assumption of spheres with a specific gravity of 2.65 is inadequate for...

3 December 2015

Case study
Teaser image

Big Sandy River, Kentucky

With a name like the “Big Sandy River”, it’s no surprise that extracting water for drinking presents challenges for treatment plant operators. Two treatment plants situated along this...

30 November 2015

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