Chlorine Demands (CLD)

Chlorine Demands (CLD) refers to the various substances present in water that consume or react with chlorine during the disinfection process. These substances can include organic matter, ammonia, and other compounds that compete with pathogens for chlorine. Monitoring CLD levels is crucial in water treatment to ensure adequate chlorine dosage for effective disinfection while accounting for chlorine depletion by reactive substances.

High CLD levels may necessitate higher chlorine doses or alternative disinfection strategies to maintain water quality standards. Understanding and managing CLD is essential for optimizing disinfection processes, minimizing disinfection by-products, and ensuring safe drinking water for consumers.