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Rain Water Harvesting By Laxmi And Spoorti

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Rain Water Harvesting By Laxmi And Spoorti Rain Water Harvesting By Laxmi And Spoorti Presentation Transcript

  • Rain water harvesting By, Laxmi.vakkund & Spoorti.jamagoud
  • contents
    • Introduction
    • Benefits
    • Methods
    • Watershed management
  • Introduction
    • Def’n:
    • It’s the process of collecting and storing rain water in a scientific &
    • Controlled manner for future use.
    • It involves collection of rain water from house rooftops , through gutters ,its filtration and subsequent
    • Storage in a reservoir.
  •  
  • BENEFITS
    • Improves ground water availability and quality.
    • Reduces the effect of drought and flood.
    • Soil erosion will be reduced.
    • Immediate availability of fresh water.
    • Environment friendly for better living
  • METHODS
    • THERE ARE 3 METHODS OF RAIN WATER HARVESTING..
    • ROOFTOP HARVESTING.
    • OPEN SPACE HARVESTING.
    • GROUND WATER RE-CHARGE.
  • ROOFTOP HARVESTING
    • DEF’N:
    • Rain water harvesting from individual house roofs or roofs of flats and complexes is called rooftop harvesting .
  • OPEN SPACE HARVESTING
    • Rainwater harvesting
    • undertaken in parks &
    • open spaces by creating
    • water harvesting ponds
    • is defined as open space
    • Harvesting.
  • STEPS INVOLVED IN OPEN SPACE HARVESTING
    • In large parks, storage of rain water in small ponds is possible. This allows ground water recharge.
    • Rainwater run-off from open space & paved areas can be stored in underground sumps.
    • In the cities, rainwater run-off has increased & ground water recharge has decreased due to asphalted roads & pavements.
  • GROUND WATER RE-CHARGE
    • It is a method of conserving rainwater by putting it back into the soil to increase the declining ground water table .
    • Before recharging, the water is filtered by passing it through a filtration bed of sand & broken bricks.
    • Rainwater can be harvested from the roof tops or open spaces.The harvested water is directed into the ground for recharging.
    • The filtered water is then directed into an open well or borewell .
  • WATERSHED MANAGEMENT
    • Watershed is an area of land from which rainwater drains out to a common point ..
  • TYPES OF WATERSHED MANAGEMENT
    • MICRO-WATERSHED
    • SUB-WATERSHED
    • MACRO-WATER-SHED
    • Micro-watershed join together to form a sub-watershed.
    • Many Sub-watershed make up a macro-watershed.
    • Macro-watershed finally flow into the oceans.
  • AIMS OF WATERSHED PROGRAMMES
    • To utilize the natural resources efficiently.
    • To maintain environmental and ecological balance.
    • To increase the vegetative cover.
    • To use the land to its optimum capability .
  • thank u..
  • any quarrrrrreeeeeeyyyy ANY QUARREYYYYYY