Trihalomethane (THM) Removal Design Parameters, Testing, & Performance Evaluation
GridBee® SN Series Spray Aeration Systems For Potable Water Storage Tanks
Practical real-world experiences combined with on-going innovation are the cornerstones for all Medora Corporation THM (trihalomethane) and other VOC (volatile organic compound) spray aeration removal systems. We have hundreds of successful SN Series Systems currently in use and are continuously conducting internal THM removal tests to provide the best product and result for our Customers.
The THM removal efficiency curve is dependent on a number of factors. Proper consideration and evaluation of these factors ensures the system is designed to provide the THM removal rates desired.
THM Removal Efficiency
THM removal efficiency is impacted by the following:
- Starting THM levels
- Water temperature
- THM formation potential
- Flow through the system
It is very important a THM removal system be judged according to agreed upon design parameters. When these parameters deviate one way or the other, the THM removal efficiency can also be impacted. For instance…
THM removal efficiency can be increased by:
- Lower flow
- Higher starting THM levels
- Higher temperatures
- Lower formation potential
THM removal efficiency can decrease with:
- Higher flows
- Lower starting THM levels
- Lower temperatures
- Higher formation potential
It is not always easy to predict how all these factors will work in concert with each other. This is why we purposefully designed scalability into SN Series THM removal systems for those special cases where more treatment may be needed based upon new information and/or revised design parameters.
Performance Evaluation Considerations
Update: November 2019
From the time this blog was posted, we have since put together a special learning document in PDF format to help our Customers better understand evaluation considerations when it comes to THM removal systems. We think you will find it valuable. You can access it here...
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