Dissolved organics measurement
Natural organic matter (NOM) is a complex and heterogeneous mixture of organic substances produced from vegetative decay processes that create problems for water treatment plants tasked with producing drinking water of a consistent high quality. The majority of NOM originates from the soils. These aquatic humic substances are mainly derived from decomposing plants and animals and color the water from yellow to brown. It is important to remove humic substances prior to chlorination, as any remaining NOM will react with the added chlorine to create undesirable disinfection by-products (DBPs) such as trihalomethanes (THMs).
ABB offers two analytical methods for detecting organic matter in water: AV400 Series and Aztec 600 Color Analyzer.