- Coagulation / 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.
What are the 6 methodologies used in water treatment?
—
boiling
; — household slow sand filter; — domestic chlorination. — storage and sedimentation; — up-flow roughing filter; — slow sand filtration; — chlorination in piped water-supply systems.
What are some water treatment methods?
- Coagulation / 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.
What are the 4 main steps to 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. Let’s examine these steps in more detail.
What are the 7 stages of water treatment?
- ION Exchange and Coagulation. This is the first step of the purification process. …
- Sedimentation. …
- Filtration and Granular Activated Carbon. …
- Disinfection. …
- Carbon Filters. …
- Reverse Osmosis. …
- Store Purified Water.
How many types of water treatments are there?
There are
four common types
of household water treatment systems, and they are: Filtration System: This is a water filter device that will remove impurities by means of a physical barrier, chemical, or a biological process.
What are the two main types of water treatment plants?
- Effluent Treatment Plant. …
- Sewage Treatment Plant. …
- Common and Combined Effluent Treatment Plants. …
- Activated Sludge Plant.
What materials Cannot be removed from wastewater?
When wastewater arrives at the treatment plant, it contains many solids that cannot be removed by the wastewater treatment process. This can include
rags, paper, wood, food particles, egg shells, plastic, and even toys and money
.
What are the five methods of water purification?
- Plain Sedimentation.
- Sedimentation with Coagulation.
- Filtration.
- Disinfection.
- Removal of Tastes and Odors.
What is the best method to filter water?
Reverse osmosis systems
are best suited for domestic use and provide a highly efficient way to purify your drinking water at home. Increasingly, these systems are also used in hospitality environments to treat water made for coffee as they offer the finest level of filtration available.
What is the first step of raw water treatment?
Coagulation and flocculation
are often the first steps in water treatment. Chemicals with a positive charge are added to the water. The positive charge of these chemicals neutralizes the negative charge of dirt and other dissolved particles in the water.
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 raw water treatment?
Raw water is natural water like rainwater, groundwater and water from bodies like lakes and rivers. Water is considered to be raw until it is treated by a
potable water treatment process
. Raw water is less expensive than treated water, but carries more risk.
How do you make water drinkable?
If you don’t have safe bottled water, you should
boil your water
to make it safe to drink. Boiling is the surest method to kill disease-causing organisms, including viruses, bacteria, and parasites.
What are the different types of water?
- Tap water. Share on Pinterest. …
- Mineral water. …
- Spring or glacier water. …
- Sparkling water. …
- Distilled water. …
- Purified water. …
- Flavored or infused water. …
- Alkaline water.
What are the chemicals used for water treatment?
- Algicide.
- Chlorine.
- Chlorine dioxide.
- Muriatic acid.
- Soda ash or Sodium bicarbonate.
