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Sources and Storage of Irrigation Water

Sources and Storage of Irrigation Water. Chapter 2A. Sources of Irrigation Water. Conventional water resources Surface water Groundwater : springs, wells Non-Conventional water resources Dissalination Wastewater reuse Water imports. Surface water sources. Streams Lakes Reservoirs.

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Sources and Storage of Irrigation Water

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  1. Sources and Storage of Irrigation Water Chapter 2A

  2. Sources of Irrigation Water • Conventional water resources • Surface water • Groundwater : springs, wells • Non-Conventional water resources • Dissalination • Wastewater reuse • Water imports

  3. Surface water sources • Streams • Lakes • Reservoirs

  4. Streams

  5. Groundwater – Drilling methods • Cable tool method • Rotary methods • Air rotary

  6. Components of wells • Well Screen • Gravel pack • Well Casing

  7. Well Development • Objectives: • Increase yield by increasing permeability • For old wells: Reduced permeability, well incrustations • For new wells: To correct the damage to the formation which occurs during the drilling operation

  8. Well development methods • Surging with compressed air: • Mechanical surging (a plunger, a piston in a cylinder). • Mechanical surging using a bailer. • Pack flushing using a test pump. • High velocity horizontal jetting with water. • Development by pumping using a variable speed pump.

  9. Discharge head Plate

  10. Submersible pump cable

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