Filtering and disinfecting the water supply will be our primary water treatment process when the Green River Treatment Facility is complete in 2014.
What will filtration do?
The filter material consists of a layer of anthracite (coal) over a layer of sand.
- Protects against contaminants such as cryptosporidium.
- Improves the taste of water.
- Reduces the amount of silt and sand entering water pipes.
- Minimizes natural organic material in water, which helps reduce byproducts from disinfection processes.
- Rapid mix system adds coagulants and other chemicals for settling and removal of particles.
- Water metering measures the flow of water into the treatment process.
- Flocculation and sedimentation processes gently mix particles, which then collide and stick together forming larger particles or "floc". The large floc particles settle out in the sedimentation basin.
- Filtration process removes almost all remaining particles.
- Chemical storage and feeding systems hold and send chemicals to the various treatment process units.
- Clean water storage and pumping holds treated water and sends it into the transmission pipeline.
- Solids removed from the water filtration process are dewatered and prepared for disposal.