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Ecological Practices
RAINWATER
HARVESTING - STORAGE
PARADOX ?
Rainwater harvesting
components:
1) Catchment
2) Conveyance
3) Filtration
4) Storage
5) Recharge
<<< The saree is the
Catc...
MONTH DAYS QUANTITY (mm)
JAN 0.2 2.70
FEB 0.5 7.20
MAR 0.4 4.40
APR 3.0 46.30
MAY 7.0 119.60
JUN 6.4 80.80
JUL 8.3 110.20
...
How much water can I harvest
Plot Size Area(sqm) Avg 30mm
rain runoff
(KL)
Annual
970mm rain
runoff (KL)
No of days of
use...
Rain barrel : easiest way to begin rainwater harvesting
First Rain separator and Filtration
Commercial Filters
RAINWATER
HARVESTING – GROUND
WATER MANAGEMENT
The pit has reach the silt layer
Pit and concrete rings
Placing of the rings
The making of a recharge well
Procedure ….. continued

Locate recharge well in the channel or off the
channel

Make arrangements to remove silt and le...

34 acres , 400 + plots

100+ Recharge Wells

Self Regulation

Metering of borewells

Block Tariff

No private borew...
Locate Recharge Wells / Other
appropriate Recharge structures
strategically
Drain and Catchment Management
Recharge wells details
Silt and leaves trap in a stormwater drain
Covers : grilled or
perforated RCC
Direct Borewell Recharge
Should be absolutely sure of
Water quality, water directly
Entering into the aquifer
Aquifer Management
…a source and a sink
GROUNDWATER
Sink
Source
Crystalline
A hydrogeological section: a part of Bengaluru – data derived through a participatory citizen survey
20 years ago
5-10 yea...
WASTE WATER
TREATMENT AND REUSE
Waste Water Treatment
The product  
Waste Water Reuse
CURRENT

Gardening

Flushing

Construction ??

Industry ??
FUTURE (ALMOST THERE)

Lakes ?? - Putten...
WHAT IS THE

COST

ENERGY REQUIREMENT
TO TAKE WASTE WATER BACK TO ITS

ORIGINAL QUALITY

PLACE
Phytorid
MBR – Membrane Bio Reactor
SBT : Soil Bio Technology : Herohalli, Magadi Road + many more
DEMAND MANAGEMENT
Simple Steps

Dual Flush/Eco San

RO reject

Low flow shower heads – kitchen, bathroom

Bucket Bath

Tippy Tap

Kitc...
Metering
Metering Source
Metering Distribution
Metering Consumption
Metering Waste
- Water Balance –
- Embedded Energy in Water -
Metering a Borewell – Electricity and Water
Knowing your numbers
Every household connection
METERED !!!!
Production cost of water
Cost component Example expenses Example Sources of data
Cost of maintaining source groundwater ma...
1. Go to Indiawaterportal.org
2. Search for “When Pigs fly : Citizens at the centre of integrated urban water management”
...
Principles for Tariff Setting
Financial sustainability

Cover all operating costs (pumping bills,salaries etc) –
assuming...
Principles for Tariff Setting
Demand Management (most important ?)

Increasing block Tariff

Incentivize conservative us...
Demand Management
Control Lever : Water Tariffs
Don’t bundle Water charges into other
charges
A Water Bill can be a commun...
Demand Management
Water Literate means Water responsible
Engage with the community
Communicate water issues, get the kids ...
COMMUNICATION
Communication
Estate Manager stories
Estate Manager stories
Borewell stories
Borewell stories
Borewell stories
Well digger stories
Well digger stories
Well digger stories
Citizen Stories
JAKKUR LAKE
Treatment Plant and Jakkur Lake
Treated Wastewater entering the wet
Land System of Jakkur Lake
Fisheries
THANK YOU !!
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
Ecological practices : Presentation made at Bhoomi College
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Ecological practices : Presentation made at Bhoomi College

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Speaks of RWH, Waste Water Treatment and reuse, Demand Management and Ground water management

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Ecological practices : Presentation made at Bhoomi College

  1. 1. Ecological Practices
  2. 2. RAINWATER HARVESTING - STORAGE
  3. 3. PARADOX ?
  4. 4. Rainwater harvesting components: 1) Catchment 2) Conveyance 3) Filtration 4) Storage 5) Recharge <<< The saree is the Catchment, conveyance And filter !!!!!! The collection and storage of rain for future productive use
  5. 5. MONTH DAYS QUANTITY (mm) JAN 0.2 2.70 FEB 0.5 7.20 MAR 0.4 4.40 APR 3.0 46.30 MAY 7.0 119.60 JUN 6.4 80.80 JUL 8.3 110.20 AUG 10.0 137.00 SEP 9.3 194.80 OCT 9.0 180.40 NOV 4.0 64.50 DEC 1.7 22.10 TOTAL 59.8 970.00 Rainfall pattern in Bangalore 30 years data
  6. 6. How much water can I harvest Plot Size Area(sqm) Avg 30mm rain runoff (KL) Annual 970mm rain runoff (KL) No of days of use 30ft x 40ft 110 3 96 142 60ft x 40ft 220 6 192 285 50ft x 80ft 367 10 321 475• Assumed 5 member families with a daily per capita consumption of 135 litres • Assumed only 90% runoff from rooftops
  7. 7. Rain barrel : easiest way to begin rainwater harvesting
  8. 8. First Rain separator and Filtration
  9. 9. Commercial Filters
  10. 10. RAINWATER HARVESTING – GROUND WATER MANAGEMENT
  11. 11. The pit has reach the silt layer Pit and concrete rings Placing of the rings The making of a recharge well
  12. 12. Procedure ….. continued  Locate recharge well in the channel or off the channel  Make arrangements to remove silt and leaves before water enters recharge well  Monitor the rate of recharge and decide on the number of recharge wells necessary for the catchment
  13. 13.  34 acres , 400 + plots  100+ Recharge Wells  Self Regulation  Metering of borewells  Block Tariff  No private borewells
  14. 14. Locate Recharge Wells / Other appropriate Recharge structures strategically Drain and Catchment Management
  15. 15. Recharge wells details Silt and leaves trap in a stormwater drain Covers : grilled or perforated RCC
  16. 16. Direct Borewell Recharge Should be absolutely sure of Water quality, water directly Entering into the aquifer
  17. 17. Aquifer Management
  18. 18. …a source and a sink GROUNDWATER Sink Source
  19. 19. Crystalline
  20. 20. A hydrogeological section: a part of Bengaluru – data derived through a participatory citizen survey 20 years ago 5-10 years ago 2 years ago
  21. 21. WASTE WATER TREATMENT AND REUSE
  22. 22. Waste Water Treatment
  23. 23. The product  
  24. 24. Waste Water Reuse CURRENT  Gardening  Flushing  Construction ??  Industry ?? FUTURE (ALMOST THERE)  Lakes ?? - Puttenahalli -> L&T South City  Groundwater Recharge ??
  25. 25. WHAT IS THE  COST  ENERGY REQUIREMENT TO TAKE WASTE WATER BACK TO ITS  ORIGINAL QUALITY  PLACE
  26. 26. Phytorid
  27. 27. MBR – Membrane Bio Reactor
  28. 28. SBT : Soil Bio Technology : Herohalli, Magadi Road + many more
  29. 29. DEMAND MANAGEMENT
  30. 30. Simple Steps  Dual Flush/Eco San  RO reject  Low flow shower heads – kitchen, bathroom  Bucket Bath  Tippy Tap  Kitchen wash water  Gardening use
  31. 31. Metering
  32. 32. Metering Source Metering Distribution Metering Consumption Metering Waste - Water Balance – - Embedded Energy in Water -
  33. 33. Metering a Borewell – Electricity and Water Knowing your numbers
  34. 34. Every household connection METERED !!!!
  35. 35. Production cost of water Cost component Example expenses Example Sources of data Cost of maintaining source groundwater management and borewell maintenance Cost accounting monies spent on these (Bills) Cost of pumping from source Borewell / well pumping costs Electricity bills Cost of treating source quality to consumption quality RO system for TDS management Electricity and “Outsourcing” bills Cost of distribution pumping and distribution maintenance Hydro pneumatic pumping, valves, pipes maintenance Electricity and maintenance bills Cost of Conveying waste Sanitation pipes maintenance Cost accounting monies spent on these (Bills) Cost of Waste Water treatment STP running costs Electricity and “Outsourcing” bills Cost of Treated Waste water disposal “Pumps to throw it out” / Wells to recharge treated waste water to ground / reuse for gardening Cost accounting monies spent on these (Bills) and Electricity bills Ecological Cost of Water : Cost of Returning it to nature at the same quality you extracted it
  36. 36. 1. Go to Indiawaterportal.org 2. Search for “When Pigs fly : Citizens at the centre of integrated urban water management” 3. Download A. Production cost of water tool B. Ecological framework
  37. 37. Principles for Tariff Setting Financial sustainability  Cover all operating costs (pumping bills,salaries etc) – assuming equity issues not there  Sinking fund for infrastructure maintenance Water supply security  Water supply continuity fund (digging new borewells) Ecological security and responsibility  Source management / Sustainability fund (eg: recharge and maintenance of recharge, future investments for reuse etc)
  38. 38. Principles for Tariff Setting Demand Management (most important ?)  Increasing block Tariff  Incentivize conservative use of water  Penalize wasteful use Let the Water Bill tell the story – its more than numbers
  39. 39. Demand Management Control Lever : Water Tariffs Don’t bundle Water charges into other charges A Water Bill can be a communication tool (Make your bill tell the story) Understand Production cost of water Can an increasing block tariff be imposed ? Are there mechanisms to penalise wasteful use Are there mechanisms to incentivise conservative use Consumption slab Tariff 0 – 10 KL Rs 10/- 10 – 20 KL Rs 15/- 20 – 30 KL Rs 25/- 30 – 40 KL Rs 80/- > 40 KL Rs 120/-
  40. 40. Demand Management Water Literate means Water responsible Engage with the community Communicate water issues, get the kids involved Educate Community Provide Data and Information Voices for Water !!!! Water Efficient Devices Taps : Flow rate ? 75lpm or 2 to 10 lpm Showers : Flow rate ? 30lpm or 10 to 12 lpm (Bucket Bath ?) Water closets : 10/20 litres or 6/3 litre dual flush Washing m/c : 150 litres or 70-100 litres, Front loading not top loading Bath Tubs : DON’T USE THEM (Bucket Bath ?)
  41. 41. COMMUNICATION
  42. 42. Communication
  43. 43. Estate Manager stories
  44. 44. Estate Manager stories
  45. 45. Borewell stories
  46. 46. Borewell stories
  47. 47. Borewell stories
  48. 48. Well digger stories
  49. 49. Well digger stories
  50. 50. Well digger stories
  51. 51. Citizen Stories
  52. 52. JAKKUR LAKE
  53. 53. Treatment Plant and Jakkur Lake
  54. 54. Treated Wastewater entering the wet Land System of Jakkur Lake
  55. 55. Fisheries
  56. 56. THANK YOU !!

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