Water Filtration Methods Pdf

In this project filtration for point of use water treatment was studied as an alternative method of water treatment for nepal.

Water filtration methods pdf. As the filters become dirty the headloss and the depth of the water on the surface increase until the filters need backwashing. The method is excellent in removing bacteria sediments germs salts and heavy metals lead arsenic and mercury. Before you buy any type of water for your home whether a jug from the store a filter or even a water cooler it s wise to know more about the various purification methods that may have happened before you take a sip some filtration methods are better at removing particles and contaminants than others. Appropriate water treatment methods such as coagulation filtration and boiling of water should be encouraged.

Lesson overview grade level subject. Grades 5 8. Filtration iodine purifications solar boiling reverse osmosis. Science and social studies.

The process works great since water has a lower boiling point than most pollutants and microorganisms. The method involves heating water until it vaporized. Open porous ceramic jars can also be used. Fluting the filter paper maximises the rate at which the liquid may flow through the filter paper by increasing the surface area and by allowing air to enter the flask along its sides to permit rapid pressure equalisation.

The filter is a porous unglazed ceramic cylinder and impurities are deposited on its surface. Water filter treatment system at the household level. Most importantly newly dug water sources should be tested monitored and elaborately. Through class discussion and a water filtration experiment.

Filtration is one of the most effective yet simplest water treatment processes. In filters with variable declining rate flow control filters are allowed to take on as much water as they can handle. This method is generally preferred because it requires less operator attention. The filtration methods used in this activity are a simple demonstration and the water should not be considered safe for drinking.

Pdf on jan 23 2015 kasun thivanka samarasiri published water purification find read and cite all the research you need on researchgate. Gravity or simple filtration this is the most common method of filtration and is used to remove an insoluble solid material. A detailed look on the 8 most effective ways on how to purify water for drinking the advantages and disadvantages and which impurities they remove. The ceramic filter method can only be used with fairly clear water.