Bench testing is not an exact science. Each test can produce slightly different results because every wastewater sample is slightly different. By using bench tests to help determine the best chemicals for the wastewater system, you can eliminate weeks of trial and error on a large scale. You will still need to adjust the wastewater system while the water flows to dial in chemical feeds, but bench testing gives you an idea starting point. When there is going to be a change to the chemicals used in production, bench testing the new chemicals will give an indication of how the wastewater system will respond to the new additions. Having all wastewater operators know what a bench test is and how to conduct one will save countless hours of down time when a system upset occurs. They can quickly determine the best course of treatment using bench testing and then scaling the results up to the system versus making blind adjustments to the system trying to get it running correctly.
Read our white paper to find out what equipment is needed, bench (jar) test steps, how to use metal percipitants and what are the common chelators in metal finishing.
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