Monthly Archives: July 2015

Less Sludge Means More Money

“When Tennessee-American Water purchased Whitwell’s system we inherited an inefficient sludge removal and disposal process, and until we can implement a more cost effective way of disposing our sludge we greatly reduced current costs.” – Operations Supervisor, Michael Griffith Facing stringent water quality goals, water treatment plant operators hate playing “catch-up” while watching the sedimentation basin turbidity rise along with filter effluent.  Standard operating procedures amongst operator’s would agree that a little overfeed in coagulant is easier on daily operations than trying to underfeed especially when the coagulant choice is a PACl.  A proven alternative to this SOP is to use streaming current measurement to continuously monitor the charge demand of the raw water and th...

Removing Iron and Manganese in less than 10 minutes

Routine cleaning is essential for a streaming current monitor to work properly.   Therefore, plant operators desire a unit that is easy to clean, uses a good cleaning agent, and has a quick recovery of the streaming current reading after the cleaning is complete.   A 1:1 solution of hydrogen peroxide (approx. 5%) and acetic acid (common household vinegar) offers plant operators a simple and safe alternative to harsh cleaners.   A simple spray bottle and brush are all that is needed for a cleaning that takes less than 10 minutes to dissolve iron, manganese, and permanganate stains from the flow cell. Cleaning Steps: Remove probe, piston and flow cell from the SCM. Spray these pieces with 1:1 solution and allow the solution to set for a couple minutes. Brush the probe and piston before reass...

AWPCA Annual Conference in Huntsville Alabama, August 3-5

Chemtrac Inc will exhibit and present at the AWPCA (Alabama Water and Pollution Control Association) Annual Conference in Huntsville Al, August 3-5 2015.  Presentations include an “Update on Laboratory Charge Measurement and Advances in Streaming Current Measurement” along with “Mythbusting Filter Performance with Particle Counters and Turbidimeters. ...

Chemtrac Presenting at International EPRI Conference

John Clark and Joe Zimmerman of Chemtrac, Inc., will team-up to present a technical paper at the Eleventh International Conference on Cycle Chemistry in Fossil and Combined Cycle Plants with Heat Recovery Steam Generators. The conference will take place in St. Louis, July 14-16, and over 150 power plant chemists and engineers from around the world will be in attendance. Clark and Zimmerman collaborated with Luis Diaz and Phil Maszak of Florida Power and Light to author the paper, “The Quest to Monitor Corrosion Product Transport in the Power Plant Steam Cycle.” Particle detection and turbidity measurement are discussed; and a case study is included profiling a corrosion product study that was completed at the FPL West County Energy Center. The Chemtrac PC3400 Particle Counter, as well as t...

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