chapter 1, ce 704water supply engineering

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    1

    Welcome to our

    presentation

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    Bikash Ray

    ID No. 1529

    Ratan Kumar

    ID No. 2692

    MD. Mamun hossain

    ID No. 3256

    3

    S.M.TANVIR FAYSAL ALAM

    CHOWDHOURYLecturer

    Department of Civil Engineering

    World University Of BangladeshFEB 2014

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    Top Page

    4

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    The essential element of a water supplysystem are as follows,

    Source of supply.Collection system.

    Treatment or purification plant and

    Distribution system.

    8

    Element of water supply system:-

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    Quality.

    Quantity.

    Cost.

    9

    Choice of a source of water supply

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    Intake

    Intake main

    Adequate /transmission main

    Pumping station Factors considered in designing and location intake

    Location of the water available.

    Possible to wide of water level.

    Characteristics of intake surrounding. Formation of souls of bars.

    Possible source of solution.

    Provision for excluding possible floating materials like logsvegetation.

    10

    Collection system:-

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    Turbidity Color

    Taste Odour Bacteria

    Treatment of ground water :-(Reduce)

    Hardness Iron Corrosive qualities Bacteria.

    11

    Treatment of source water :-(Removal)

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    Screenning

    Sedimentation

    Treatment with chemicals

    Filltration through sands bed.

    Designfection.

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    Methods using in treatment :-

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    Safe water

    Clean water

    Palatable water

    Distribution system includes:-

    Varrious pipes that convey the water to the consumer.

    Storage reservoir that are provided to aid in the

    disinfection. Pumps and necessary equipments.

    Fire hydrants,valve,meters,outers apparel nuances.

    13

    Treatment plant provide

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    Gravity system

    Distribution reservoir system

    Direct pressure system.

    14

    Methods of distribution system:

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    Concrete reservoir

    Cylindrical Rectangular

    Square.

    Steel reservoir

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    Types of distribution reservoir:

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    All the essential elements of a water supply system for a city are

    diagrammatically shown below in fig:

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    Estimate future population of the community andstudy of local condition.

    Location of reliable source of adequate quantity.

    Design of suitable collection system.

    Determine of physical chemical and biologicalcharacteristics of water.

    Design of various unit of treatment plant.

    Provision for necessary storage system.

    Design of distribution system.

    Operation of supply and distribution.

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    Planning a municipal water supply system

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