RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
Rainwater - the answer
         KARNATAKA STATE COUNCIL FOR
            SCIENCE & TECHNOLOGY
                       Indian...
Rainwater - the life
Water is very much essential
for life
In the modern society water
fulfills several needs
Water for dr...
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
Rain water - the answer
Conventionally water is collected
in vessels and stored for a days
requirement
In urban areas hous...
Rainwater - the source
Fresh water is made available
for consumption in many ways
Natural springs
Step wells, Ponds & lake...
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
Lakes of
                                                                                     Bangalore
RWH Cell, Karnatak...
Bellandur Lake, 1942

RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore...
A Sports Stadium today, Sampangi Tank earlier
RWH Cell, Karnataka State Council for Science and Technology, Indian Institu...
Koramangala Tank is today a Housing “Complex”

RWH Cell, Karnataka State Council for Science and Technology, Indian Instit...
KGA Golf Course, Once Challaghatta Tank
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of ...
Bangalore City Bus Stand, Once Dharmambudhi Tank




RWH Cell, Karnataka State Council for Science and Technology, Indian ...
Rainwater – for Bangalore
Water to Bangalore is being
supplied from
Cauvery river
Tippagondanahalli and
Hessaraghatta rese...
Rain water – to/for
        electricity
Precious electric energy is used
to pump water to major storage
places in Bangalor...
Rainwater – to rely on
Rain water would be the
immediate resource to augment
existing water supply system
By Simply “Catch...
Rainwater – at all places
Three methods
– Roof top RWH
– Runoff RWH (landscapes,
  parks, storm water drains,
  roads, etc...
Rainwater – the availability
  Rainfall in mm for Bangalore
  (Potential in liters for 40ft X 60ft site)
  Average        ...
Rain water – the need
WHO / IS standard – water
requirement of a family per day is
around 500 lts
Water requirement per ye...
Rainwater - the answer
                                                      Rainwater Harvesting in "Sourabha"

         ...
RAINWATER - availability
RAINWATER                                 ROOFTOP                            RAINWATER
         M...
Rainwater harvesting

RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore...
Ground water
recharge




                                                                                                ...
News Paper
24th Aug 2004
          RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Scien...
News
Paper
7th Jan

2004




          RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of S...
News Paper
7th Sep 2004




          RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Sc...
News Paper
                                                                                                          28th ...
News Paper 28th July 2004




RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, B...
Sakaleshpura                                                                    News Paper
                               ...
Various stages of rainwater Harvesting

                                         Collection


                            ...
Storage of water

                                 Overhead tank




Underground

                              Ground lev...
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
Fero-cement Tank
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
RWH at BWSSB Office Banashankari
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science...
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
FIXING OF POPUP FILTER ON WALL SURFACE
 RWH at CPI Office
     RWH Cell, Karnataka State Council for Science and Technolog...
RWH at KSCST, PopUp Filter Flush Cap
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Sci...
RWH at KSCST,
                                                                                   PopUp Filter -
          ...
RWH at BMP, PopUp Filter Filter Element Cleaning
RWH Cell, Karnataka State Council for Science and Technology, Indian Inst...
Sand bed filter




RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
Soudha
                                                       Vidhana
                                                    ...
Rainwater Harvesting in a village house at Chitradurga
                                                       District
   ...
RWH in a village school for drinking water
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute ...
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
Roof top
                                                                                         rainwater
              ...
Bambo gutter


RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
Ground water
recharge pit
Excavation




       RWH Cell, Karnataka State Council for Science and Technology, Indian Insti...
GROUNDWATER
  RECHARGE
  THROUGH
BARREL SYSTEM




     RWH Cell, Karnataka State Council for Science and Technology, Indi...
GROUNDWATER RECHARGE THROUGH BARREL SYSTEM
Recharge pit
with barrels
Underground after
installation



                    RWH Cell, Karnataka State Council for Scie...
Ground water recharge
   Rainwater soak pit
Similar to IG with excavated pit lined with
size stone without using mortar
So...
Ground water recharge
      Trenches
Narrow excavated trenches of around
2 ft. wide and 2 ft. depth
Filled with pebbles or...
Ground water recharge – road side trench

RWH Cell, Karnataka State Council for Science and Technology, Indian Institute o...
Pavers with
                                                                         holes for ground
                    ...
Ground water recharge
Open well or bore well
Combination of PopUp filter and
Infiltration gallery with aggregates and
sand...
Infiltration gallery
around perforated bore
well
RWH for Open Well
RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
RWH for Open Well
RWH at Kengeri Beedi Workers Housing
RWH at Kengeri Beedi Workers Housing
RAINWATER
HARVESTING THROUGH
  CLOTH OR SAREE
       RWH Cell, Karnataka State Council for Science and Technology, Indian ...
RAINWATER
                                                                      HARVESTING AND
                           ...
Thank you
 A.R. Shivakumar
       Office : 23341652
      Residence : 23398655
      Mobile : 98452 12314

 RWH Cell, Karn...
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Rain Water Harvesting - KSCST

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An excellent presentation made by KSCST. The site is also a good resource -

http://kscst.org.in/rwh.html

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Rain Water Harvesting - KSCST

  1. 1. RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  2. 2. Rainwater - the answer KARNATAKA STATE COUNCIL FOR SCIENCE & TECHNOLOGY Indian Institute of Science Bangalore – 560 012 A.R. Shivakumar Principal Investigator - RWH RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  3. 3. Rainwater - the life Water is very much essential for life In the modern society water fulfills several needs Water for drinking, bathing and cooking food are among the important daily needs for human kind
  4. 4. RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  5. 5. Rain water - the answer Conventionally water is collected in vessels and stored for a days requirement In urban areas houses are built with water storing places like underground sump & overhead tank RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  6. 6. Rainwater - the source Fresh water is made available for consumption in many ways Natural springs Step wells, Ponds & lakes (Bangalore 262 -> 82) Canals, Rivers Open wells & tube wells (1998, 1 lakh - modest estimate) RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  7. 7. RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  8. 8. RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  9. 9. Lakes of Bangalore RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  10. 10. Bellandur Lake, 1942 RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  11. 11. A Sports Stadium today, Sampangi Tank earlier RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  12. 12. Koramangala Tank is today a Housing “Complex” RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  13. 13. KGA Golf Course, Once Challaghatta Tank RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  14. 14. Bangalore City Bus Stand, Once Dharmambudhi Tank RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  15. 15. Rainwater – for Bangalore Water to Bangalore is being supplied from Cauvery river Tippagondanahalli and Hessaraghatta reservoirs Tube wells Water is pumped from a distance of around 100km to a height of nearly a km RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  16. 16. Rain water – to/for electricity Precious electric energy is used to pump water to major storage places in Bangalore and also at individual destinations from ground level to overhead tanks UG Sump, electric pump, overhead tank ect., are integral part of an urban house (since they have not approached nature for their requirement) RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  17. 17. Rainwater – to rely on Rain water would be the immediate resource to augment existing water supply system By Simply “Catching wherever it falls” Bangalore has around 60 rainy days and like a clock work 85% of the rain arrives between 4p.m. and 7p.m. RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  18. 18. Rainwater – at all places Three methods – Roof top RWH – Runoff RWH (landscapes, parks, storm water drains, roads, etc.) – Natural storage and collection through lakes and tanks RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  19. 19. Rainwater – the availability Rainfall in mm for Bangalore (Potential in liters for 40ft X 60ft site) Average 917 2,04,454 1998 1414 3,15,288 1999 1011 2,25,346 2000 1238 2,76,024 2001 1060 2,36,380 2002 766 1,70,860 2003 726 1,61,898 2004 1165 2,59,795 2005 1508 3,36,284 RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  20. 20. Rain water – the need WHO / IS standard – water requirement of a family per day is around 500 lts Water requirement per year per family is around 1,80,000 lts Water supply by most urban bodies is far below this figure On an average a family spends around Rs. 250 Per month for water in Bangalore RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  21. 21. Rainwater - the answer Rainwater Harvesting in "Sourabha" 40000 35000 30000 Water in liters 25000 20000 15000 10000 5000 0 r r r ne h er y ri l ly ay ry st be be be ar c Ju gu Ap ua ob Ju M ar em em em nu M Au ct br Ja pt ov ec O Fe Se N D Month Water requirement Rainwater available Average Rainwater RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  22. 22. RAINWATER - availability RAINWATER ROOFTOP RAINWATER MM AREA IN Lts SFT 4000 2400 8,00,000 1200 4,00,000 600 2,00,000 300 1,00,000 400 2400 80,000 1200 40,000 600 20,000 300 10,000 RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  23. 23. Rainwater harvesting RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  24. 24. Ground water recharge Abandoned well as recharge pit Recharge pit Filled with pebbles, gravel and sand RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  25. 25. News Paper 24th Aug 2004 RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  26. 26. News Paper 7th Jan 2004 RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  27. 27. News Paper 7th Sep 2004 RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  28. 28. News Paper 28th Jan 2004 RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  29. 29. News Paper 28th July 2004 RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  30. 30. Sakaleshpura News Paper April 2006 RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  31. 31. Various stages of rainwater Harvesting Collection Channelisation Filtering Storage G.W. Recharge RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  32. 32. Storage of water Overhead tank Underground Ground level RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  33. 33. RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  34. 34. Fero-cement Tank RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  35. 35. RWH at BWSSB Office Banashankari RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  36. 36. RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  37. 37. RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  38. 38. FIXING OF POPUP FILTER ON WALL SURFACE RWH at CPI Office RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  39. 39. RWH at KSCST, PopUp Filter Flush Cap RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  40. 40. RWH at KSCST, PopUp Filter - Filter Element RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  41. 41. RWH at BMP, PopUp Filter Filter Element Cleaning RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  42. 42. Sand bed filter RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  43. 43. Soudha Vidhana Before After RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  44. 44. Rainwater Harvesting in a village house at Chitradurga District RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  45. 45. RWH in a village school for drinking water RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  46. 46. RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  47. 47. Roof top rainwater harvesting for tile roof building RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  48. 48. Bambo gutter RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  49. 49. Ground water recharge pit Excavation RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  50. 50. GROUNDWATER RECHARGE THROUGH BARREL SYSTEM RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  51. 51. GROUNDWATER RECHARGE THROUGH BARREL SYSTEM
  52. 52. Recharge pit with barrels Underground after installation RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  53. 53. Ground water recharge Rainwater soak pit Similar to IG with excavated pit lined with size stone without using mortar Soak pits are generally not filled with any filler material Soak pits are covered at the top by a RCC or stone slabs Rainwater is channeled to the soak pits after filtration for ground water recharge RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  54. 54. Ground water recharge Trenches Narrow excavated trenches of around 2 ft. wide and 2 ft. depth Filled with pebbles or aggregates with a top layer of coarse sand Rainwater from open spaces, parks, payments, roads etc. can be channeled to these trenches for ground water recharge RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  55. 55. Ground water recharge – road side trench RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  56. 56. Pavers with holes for ground water recharge RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  57. 57. Ground water recharge Open well or bore well Combination of PopUp filter and Infiltration gallery with aggregates and sand can be used Needs close monitoring of filtration system Site specific Cooperative efforts yields good results RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  58. 58. Infiltration gallery around perforated bore well
  59. 59. RWH for Open Well RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  60. 60. RWH for Open Well
  61. 61. RWH at Kengeri Beedi Workers Housing
  62. 62. RWH at Kengeri Beedi Workers Housing
  63. 63. RAINWATER HARVESTING THROUGH CLOTH OR SAREE RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  64. 64. RAINWATER HARVESTING AND GROUND WATER RECHARGE - MODEL RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
  65. 65. Thank you A.R. Shivakumar Office : 23341652 Residence : 23398655 Mobile : 98452 12314 RWH Cell, Karnataka State Council for Science and Technology, Indian Institute of Science, Bangalore-12
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