Water Treatment Basics

Improving the quality water involves disinfection plus purification of untreated surface and ground water.

Community Level. A public/private water treatment facility aims to generate water safe to drink and pleasant to taste, as well as being sure that there's enough water to supply the demands of town.

Raw, untreated water emanates from an underground aquifer (via wells) or surface ponds just like a river or lake. It flows or is pumped into a rehab facility. The second it's there, the lake is treated beforehand to remove debris - like leaves and silt. It goes through some treatment processes, which include disinfection and filtration using chemicals or physical processes, eliminating microorganisms that create diseases. After the therapy is completed, water flows out through a system of pumps and pipes, and this can be referred to as the distribution system.

There's a slight difference water course of treatment at various places, based on the technology of the plant and water should be processed, though the fundamental principles are typically exactly the same.

Coagulation / Flocculation. On the coagulation state, liquid aluminium sulfate or alum, at times polymer, lies in untreated/raw water. This mixture causes tiny dirt particles in water being fastened together or coagulated. Then, collections of dirt particles join together to produce bigger, heavier particles Known as flocs - which can be easily removed through filtration/settling.

Sedimentation. When water and floc particles glance at the treatment process, they flow into sedimentation basins where water moves slowly, letting heavy floc particles dip towards the bottom. Floc collected on the lowermost the main basin is called sludge. It goes through pipes to arrive at the drying lagoons. The sedimentation state is not contained in Direct Filtration so, the floc is removed through filtration.

Filtration. Water undergoes a filter designed to remove water particles. Filters contain layers of gravel and sand, and in other cases, crushed anthracite. Filtration gathers the suspended water impurities and raises the efficacy of disinfection. The filters are cleaned often by means of backwashing.

Disinfection. Before water switches into the distribution system, it can be disinfected to be sure that bacteria that creates diseases, parasites and viruses is eliminated. Chlorine is used because it an extremely sufficient in disinfecting and looking after residual concentration to shield from possible biological contamination present in the device of water distribution.

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