SAC254 Analysers

SAC254 Analyser for organics in water

What is SAC254?

SAC254 refers to the Spectral Absorption Coefficient measured at a wavelength of 254 nanometers. It is a parameter used in water quality monitoring to quantify the concentration of dissolved organic matter (DOM) and certain types of pollutants, such as micropollutants and potential faecal contamination. The measurement is based on the principle that organic compounds and other specific contaminants absorb ultraviolet (UV) light at this wavelength. Therefore, a higher SAC254 value indicates a greater concentration of these substances in the water, making it a valuable tool for assessing water purity, guiding treatment processes, and detecting pollution events in both municipal wastewater treatment and natural water bodies.


Monitoring SAC254 in Potable Water Treatment

Monitoring SAC254 in potable water treatment is an essential practice for ensuring the safety and quality of drinking water. By measuring the Spectral Absorption Coefficient at 254 nanometers, water treatment facilities can effectively gauge the concentration of dissolved organic matter (DOM) and other specific contaminants that absorb UV light at this wavelength. This capability is crucial for identifying the presence of potentially harmful organic pollutants and guiding the optimisation of treatment processes, such as coagulation, flocculation, and disinfection. For instance, a high SAC254 reading may indicate the need for additional treatment steps to remove organic compounds that could react with disinfectants to form disinfection byproducts (DBPs), which pose health risks to consumers. Furthermore, tracking changes in SAC254 values over time allows for the early detection of pollution events or changes in water quality at the source, enabling proactive measures to protect public health. As such, SAC254 serves as a valuable parameter in the comprehensive monitoring strategy of potable water treatment facilities, contributing to the delivery of safe, clean drinking water to the community.



Swan Analytical SAC254 Analysers