Tuesday, December 14, 2010

Sometimes Air and Water Don’t Mix

by Steve Kari
Tonka Equipment Company



Moisture in compressed air systems can cause problems with pneumatically controlled devices, such as valve actuators and control solenoids.  


Compressed air supply systems in this industry traditionally have been specified and supplied with refrigerated air dryer systems to remove excess moisture from the air. These systems rely on a refrigeration system to cool and condense moisture from the air stream.


We have learned through extensive investigation that these systems work most effectively if the application has a constant and steady air flow, such that the entire refrigeration system stays cold. We have therefore concluded that refrigerated air dryer systems are most appropriate for applications where air is consumed, such as systems where modulation valves or pressure
aerators are used.

Tuesday, November 30, 2010

New Ultrafiltration Membrane Treatment Pilot System in West Virginia


Ultrafiltation Membrane Pilot
In the scenic area of Hardy County located just 100 miles from Washington, DC, Tonka piloted its new Ultrafiltration Membrane packaged treatment system. This customized system incorporates flocculation, sedimentation and ultrafiltration – a water treatment package along with full manufacturer system responsibility.  


The Tonka UF membrane pilot trailer is a self-contained unit suitable for either existing applications or “greenfield” sites. We pull it up, drop it, connect power, drainlines and water source, and it’s ready to go. The pilot unit can tackle surface water with organics as well as groundwater sources with iron and manganese and other contaminants. The Dow UF membranes also provide removal credits for cryptosporidium, giardia and viruses under the limits as determined by State regulators.

Tuesday, October 5, 2010

Organics Removal with Anion Exchange

by TJ Stroebl
Tonka Equipment Company


The Village of Ohio, Illinois recently commissioned their new water treatment plant to remove iron, manganese, arsenic, and color from the groundwater supply, by installing an integrated Tonka treatment system.  A Dualator® VI, which incorporates aeration, detention and filtration, is used to remove the iron, manganese and arsenic. The unit is 11 feet in diameter and is designed to operate at 275 gpm. A Tonka ORGANIX™ anion exchange system was installed downstream of the Dualator® to remove dissolved organic compounds associated with color.

Wednesday, September 15, 2010

Canyon Regional Water Authority starts up the Wells Ranch Project

by Rick Mann
VP, Tonka Equipment Company


Canyon Regional Water Authority (CRWA) is a major provider of high quality potable water for thousands of consumers North East of San Antonio onward to the city of San Marcos, TX. Over the past few years this corridor has seen significant growth, and this growth pattern continues. CRWA operates two surface water treatment plants with a total capacity of greater than 22 MGD.