prechlorination
/priːˌklɔːrɪˈneɪʃən/
noun
- The process of adding chlorine to water before other treatment steps, typically to kill germs or control algae.
- The water treatment plant uses prechlorination to reduce bacteria before filtration.
- Engineers decided to stop prechlorination because it created unwanted chemical byproducts.
- Prechlorination helps prevent the growth of algae in the reservoir during summer.