UVT PRODUCT SELECTION QUICK QUIDE When it comes to real-time UV transmittance (UVT) analysis, Real Tech provides two primary forms of instruments to choose from: a bypass style cabinet instrument and a submersible probe instrument. How do you decide which…
ABOUT UVT UV transmittance, UV transmission or UVT is a measurement of the amount of ultraviolet light (commonly at 254 nm due to its germicidal effect) that passes through a water sample compared to the amount of light that passes…
Both streaming current detectors (SCD) and UV254 analyzers can provide significant benefits for real-time optimization of the coagulation process. However, there are some fundamental differences between the two approaches. The main difference between SCD and UV254 analyzers for coagulation control…
Water quality monitoring has evolved significantly over the past decade. Today’s industrial manufacturers have access to technologies that are capable of monitoring various wastewater quality parameters and contaminants of concern in a simple and effective manner. A continuous stream of…
Real-time BOD monitoring is becoming increasingly popular, and it’s no surprise as the alternative is a 5 day wait for lab results. Continuous organics monitoring opens the door for many new treatment process control and optimization possibilities that can result…
SPECTROPHOTOMETRY OVERVIEW Spectrophotometry is a well-established analytical method, which has been used for decades in chemistry, physics, biochemistry, and chemical engineering for quantitative analyses. A light source and sensor are used to measure the intensity of light passing through a water sample…
Specific ultraviolet absorbance (SUVA) provides a general characterization of the nature of natural organic matter (NOM) in a water sample and is typically performed for the purpose of determining disinfection by-product (DBP) formation potential. SUVA is calculated by dividing the…
UV254, TOC, DOC, BOD and COD all provide measures of different aspects of the organic content in a water sample. Each of these parameters possesses a certain bias due to the nature of the particular test method: ABSORBANCE AT 254…
BEER-LAMERT LAW The relationship between absorbance and concentration is defined by Beer-Lambert Law (or Beer’s Law). Beer’s Law states that the absorbance of light absorbing matter in water is directly proportional to its concentration, expressed by the following equation: A…
When looking at source water monitoring for drinking water treatment, the terms colour and natural organic matter (NOM) are often interchanged. This may be due to organic matter, such as humic acids, causing visible colour in surface water. However, its…