Guide to Chemical Oxygen Demand (COD) Testing

Chemical oxygen demand (COD) is a critical waste treatment measurement in everything from municipal systems to food manufacturing waste streams. Performing COD testing the right way is important in determining wastewater treatment effectiveness and can help diagnose any problems in treatment. In this blog, we’ll cover what chemical oxygen demand is, how to test it, and how…

Measuring Acidity of Natural Water by Titration

In the past 75 years, the worldwide human population has increased from approximately 2.5 billion to over 7 billion people. Population increase, the resulting increase in use of natural resources, and anthropogenic (human) produced waste have significantly impacted our natural environment. One of the most vital resources that humans require to live is water. Ironically…

Environmental Monitoring of Nitrates and Other Water Quality Parameters: pH, Dissolved Oxygen (DO), Turbidity

Nitrate is one of the most important parameters in assessing surface and ground water quality. Nitrates are naturally present in surface and ground waters in low concentrations, but are harmful to humans and livestock and cause aquatic ecosystem degradation in high concentrations. Nitrates enter the environment as human-induced pollution from a variety of sources, but…

Fluoride Measurement in Drinking Water

The use of fluoride as an additive to drinking water has been a highly debated topic for over 70 years. Although fluoride occurs naturally in many water sources, it is often added to water supply systems to provide health benefits to the public.  While the positive effects of fluoride on dental health have been scientifically…