3. Project title: Rain Water Harvesting
Problem Statement: In our ITI Ground Water Level Is very low So We Decided To Do This Project For Ground
Water Level Management.
Objectives: Rechargeunderground water, Gardening, Livestock, Drinking purpose, forirrigationpurpose
Steps to make it happen: In rooftop harvesting, the roof becomes the catchments, and the rainwater is collected
from the roof of the house/building. This method is lessexpensiveand veryeffective
Resources needed or used:
Resources – Bricks, cement, coal , sand ,iron Road,(Money)
Timeline:15 Day
Empathize Define Ideate Prototype Test
4. What is rain water harvesting?
⚫Rainwater harvesting is a technology used for
collecting and storing rainwater from rooftops, the
land surface or rock catchments using simple
techniques such as jars and pots as well as more
complex techniquessuch as underground check dams.
⚫Rainwater harvesting is the accumulation and
depositionof rainwater forreuseon-site, rather than
allowing it torun off.
5. ⚫Rainwater harvesting technologiesare simple to install
and operate.
⚫ Local peoplecan beeasily trained to implementsuch
technologies, and construction materials are also readily
available.
⚫Running costs, also, arealmost negligible.
⚫Watercollected from roof catchments usually is of
acceptablequality fordomesticpurposes.
6. How we can harvest rainwater?
⚫Broadly thereare twoways harvesting rainwater.
(i)
(ii)
Surface runoff harvesting .
Roof top rainwater harvesting.
⚫Surfacerunoff harvesting:-
In urban arearainwaterf lowsawayas surface
runoff. This runoff could becaughtand used for
recharging aquifers by adopting appropriate
methods.
7. ⚫It is a system of catching rainwaterwhere it falls.
In rooftop harvesting, the roof becomes the
catchments, and the rainwater is collected from
the roof of the house/building. This method is
lessexpensiveand veryeffective.
8. ⚫The surface that receives rainfall directly is the
catchmentof rainwaterharvesting system. It may
be terrace, courtyard, or paved or unpaved open
ground.
Catchmentarea
9. ⚫It is a system to delivered of water for uses. There are
useof pumps to takeoutwater from tank and deliver
for manypurpose . Water is deliver by pips .
Delivery system
11. ⚫ Filtersare used for treatmentof waterto
effectively remove turbidity, colourand
microorganisms. Afterfirst flushing of rainfall,
water should pass through filters. There are
different types of filters in practice, but basic
function is topurifywater.
Filtration system
12. ⚫Thesearecommonly used filters, constructed by
brick masonry and filleted by pebbles, gravel, and
sand as shown in the figure. Each layershould be
separated bywire mesh.
Sand Gravel Filter
13. ⚫Charcoal filter can be made in-situ or in a drum.
Pebbles, gravel, sand and charcoal as shown in the
figureshould fill thedrum orchamber. Each layer
should be separated by wire mesh. Thin layerof
charcoal is used toabsorbodor if any.
Charcoal Filter
14. ⚫This filter can be made by PVC pipe of 1 to 1.20 m
length; Diameterof pipedependson theareaof
roof. Six inches dia. pipe is enough for a 1500 Sq.
Ft. roof and 8 inchesdia. pipeshould be used for
roofs more then 1500 Sq. Ft. Pipe is divided into
threecompartments bywire mesh.
PVC- Pipe filter
15. Why do people harvest rainwater?
I. Rains water is a precious resource due to increases in
demand from our ever growing population. Changes in
rainfall patterns in the UK have seen both drought
conditionsand f looding.
II. Rainwater harvesting can provide around 50 per
cent of a family’s water needs.
III. This notonlysaveswater, but saves money and reduces our
impacton theenvironment.
IV. Toinculcateacultureof waterconservation
V. To reduce soil erosion
16. ⚫In the state of Tamil Nadu, rainwater harvesting was
made compulsory for every building to avoid ground
waterdepletion.
⚫In Rajasthan, rainwater harvesting has traditionally
been practiced by the peopleof the Thar Desert.
⚫At present, in Pune (in Maharashtra), rainwater
harvesting is compulsory forany new society to be
registered.
