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Water Treatment Process Seminar Based On Industrial Training in JUSCO Topic:-

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WATER - Water is a tasteless and odorless substance which is essential for all renowned living things. Water has a vital importance for living. Water is colorless when looked on a small amount. It is observed in high amounts on earth. Water is everywhere...

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Water is very important for life. What other important uses for water do we have? Did you ever wonder why pure water was so important for drinking ? Do you know why water is water? Let's take a closer look at water... Your body is made up of many bones. All these bones make up your skeleton . Like your body, water is made up of a skeleton of water molecules Why water treatment is so necessary ? In most urban areas, water is treated at water treatment facilities before it is distributed to the people who use it. This treatment method is referred to as treatment at the source because contaminants are removed in these facilities before water is distributed.

Coagulation- Flocculation Sedimentation Filtration Systems Disinfection Softening Aeration :

Coagulation- Flocculation Sedimentation Filtration Systems Disinfection Softening Aeration The steps of water treatment

Process of water treatment in jusco:

Process of water treatment in jusco At first water is collected from the Hooghly river with the help of high efficiency pump Distributed into several intake channel Stored in lake with the help of pipe (called PRE-SETTLING TANK) Collected in plant dam with the help of Settle pump house Divided into several stilling chamber ( Stilling Chamber is used to remove air bubbles from the flow stream). Some chemicals are added mainly alum , PAC in between stilling chamber & clarifier.

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Then this chemical mixed water going to clarifier with mixing chlorine (called Pre- chlorination). Then the flog of water is flocculated by help of central bearing & it has flocculator machine for mixing water. This clarified water is going to filter house. It has some filter bed which filters the clarified water. Then chlorination process start . It is called post chlorination. Chlorine added in to this reservoir. At last total germless drinking water reserve in reservoir.

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RIVER Cl PUMP HOUSE INTAKE CHANNEL PRE-SETTLING TANK VALVE PLANT DAM Cl Clarifier Stilling Chamber Alum Cl CHEMBER Water Water Filter Bed Filter Bed Clarifier Stilling Chamber Water Treated water Reservoir

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Chlorination Chlorine is a disinfecting agent that when added to water kills harmful bacteria , Giardia , and most viruses . Before go to the filter bed chlorine add in the water, this process is called Pre-Chlorination . In the reservior again chlorine add in the water, is called Post-Chlorination . Chlorine add in the water with the help of Chlorinator. Safety need to use chlorine :- PPE’s – protected clothing , rubber gloves , acid resistant shoe & goggles or full mask.

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FILTER BED Various type of sand are used in manufacturing the filter bed . In the filter bed has four layer respectively sand, grit, gravel, lateral layer. Filter bed use for filtration process. Filtration is the process for separating suspended and colloidal impurities from water by passing through a porous medium. Wash Of Filter Bed Onetime in everyday is need to clean the filter bed . For the filtration process in between the layer of filter bed is fill for the impurities. For this reason the capacity of filter bed is decrease . At first with the help of lateral pipe to using the air & vibrate the bed , that time the beds are looking boiling water. As a result impurities are loose from the bed. After that the using of clean water, the impurities remove from filter bed. This process is continue till the filter bed is not clean properly.

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FILTER BED River water in Filtered River water out

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Clarification Clarification is the separation from water of heavier suspended particles by gravitational settling. Efficient clarification preceding filtration permits larger filter runs and helps to reduce filter runs and helps to reduce filter problems such as cracking and mud ball formation. It usually consist in: - Screening - Physical chemical treatment is a generic term for Coagulation-Flocculation - Sedimentation or Flotation , upon particles properties and water type - Fine filtration For industrial effluents, Centrifugation is applied for heavy particles removal Clarifier

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