What Are The 5 Stages Of Water Treatment?

What are the 4 steps of water treatment?

Community Water TreatmentCoagulation and Flocculation.

Coagulation and flocculation are often the first steps in water treatment.

Sedimentation.

During sedimentation, floc settles to the bottom of the water supply, due to its weight.

Filtration.

Disinfection..

What are the 3 stages involved in treating water?

There are three main stages of the wastewater treatment process, aptly known as primary, secondary and tertiary water treatment. In some applications, more advanced treatment is required, known as quaternary water treatment.

What is raw water treatment?

RAW WATER TREATMENT PROCESS Raw water must be treated or clarified prior to being used as makeup water in most utility processes. Clarification removes suspended and dissolved solids, bacteria, and other forms of impurities to help prevent system scale, corrosion, and fouling.

What is the most important step in water treatment?

It is, however, an important primary step in the water treatment process, because coagulation removes many of the particles, such as dissolved organic carbon, that make water difficult to disinfect. Because coagulation removes some of the dissolved substances, less chlorine must be added to disinfect the water.

What is a water treatment system?

Water treatment is any process that improves the quality of water to make it appropriate for a specific end-use. 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.

What are the main water treatments?

The most common treatment process train for surface water supplies—conventional treatment—consists of disinfection, coagulation, flocculation, sedimentation, filtration, and disinfection.

What are the 5 steps of water treatment?

These include: (1) Collection ; (2) Screening and Straining ; (3) Chemical Addition ; (4) Coagulation and Flocculation ; (5) Sedimentation and Clarification ; (6) Filtration ; (7) Disinfection ; (8) Storage ; (9) and finally Distribution.

What are the stages of purification of water?

The methods used include physical processes such as filtration, sedimentation, and distillation; biological processes such as slow sand filters or biologically active carbon; chemical processes such as flocculation and chlorination; and the use of electromagnetic radiation such as ultraviolet light.

What are the water treatment methods?

Top 7 Methods of Water TreatmentCoagulation / Flocculation. Coagulation is adding liquid aluminum sulfate or alum and/or polymer to raw or untreated water. … Sedimentation. When water and flocs undergo the treatment process, they go into sedimentation basins. … Filtration. … Disinfection. … Sludge Drying. … Fluoridation. … pH Correction.

Is raw water safe?

Experts say raw water may contain minerals, but you can get the minerals you need from a healthy diet — and the risk of harmful bacteria, viruses and parasites is not worth any benefit from trace minerals.

Is water raw material?

Water is a raw material used and produced in high quantities in the oil industry, from extraction activities through to refineries and petrochemicals. Uses include: injection water, production water, process water, wastewater, rainwater, cooling water, tank cleaning water, and others.

What is the pH of raw water?

6.5–8.5The pH of most raw water lies within the range 6.5–8.5 (1). The pH of an aqueous sample is usually measured electrometrically with a glass electrode. Temperature has a significant effect on pH measurement (1,2).