Drinking water sources are subject to contamination and require.
Diagram drinking water treatment process.
Worldwide a combination of coagulation sedimentation and filtration is the most widely applied water treatment technology and has been used since the early 20th century.
Water sourcewater source period of design year r i d lit f t t d t d required quality of treated water end use economic resources available of o m 5 extracted from prof c visvanathan s lecture notes.
Screening water is passed through coarse screens where large fl oating debris twigs plastic bags etc are removed.
Storage water is placed in a closed tank or reservoir for disinfection to take place.
Suspended particles get stuck to the chemicals to form floc.
The water is then passed through fi ne screens which remove much of the algal content.
The water then flows through pipes to homes and businesses in the community.
Coli hepatitis a giardia intestinalis and other pathogens.
The four processes are.
Drinking water treatment plant process animation.
Choice of water treatment process choice of treatment process depends on choice of treatment process depends on.
Animation of process flow diagram of drinking water treatment plant is shown in this video.
The diagram below shows a basic water treatment process for surface water.
This article throws light upon the four processes of waste water treatment.
The end use may be drinking industrial water supply irrigation river flow maintenance water recreation or many other uses including being safely returned to the environment water treatment removes contaminants and undesirable components or reduces their concentration so that.
Flocculation clarification tank lake reservoir or river coagulation filtration.
As already stated preliminary treatment involves the removal of floating materials leaves papers rags and settleable inorganic solids.
Alum and other chemicals are added to the water at this stage.
Drinking water supplies in the united states are among the safest in the world.
1 preliminary treatment 2 primary treatment 3 secondary or biological treatment and 4 tertiary or advanced treatment.
Slow sand filtration is essentially a biological process whereas rapid sand filtration is a physical treatment process.
Concept of the treatment process.
Drinking water treatment sedimentation the heavy particles floc settle to the bottom and the clear water moves to filtration.
Text in this example.
Quality of raw water.
The water passes into large settling tanks where solids are allowed to settle.
Many water treatment plants use a combination of coagulation sedimentation filtration and disinfection to provide clean safe drinking water to the public.
Many small private water supplies will rely on cartridge filters consisting of a woven or spun filter within a standard housing.
However even in the u s drinking water sources can become contaminated causing sickness and disease from waterborne germs such as cryptosporidium e.
