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Experience of Lanka Rain Water Harvesting Forum

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Down pipe filter. User Pattern. Home Gardening & Agriculture. Run off tanks ... investments ,both by Government and non Government sectors, in the field of pipe ... – PowerPoint PPT presentation

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Title: Experience of Lanka Rain Water Harvesting Forum


1
Experience of Lanka Rain Water Harvesting Forum
Tanuja Ariyananda Lanka Rain Water Harvesting
Forum
2
The Problem
  • Almost all the districts in Sri Lanka face the
    dual problem of

Drought -During dry months
Floods - During Monsoon
3
COLLECTING RAINWATER WHEN AND WHERE IT FALLS FOR
USE DURING DRYMONTHS
  • Storage
  • Recharging

4
Where can rain water harvesting be used ?
  • In Rural households where water is scare,
  • dry zone where ground water is mineralized
  • coastal belt where ground water is saline, (
    tsunami effected areas)
  • hilly areas where ground water table is low where
    it is not possible to extract ground water or
    have no other water sources
  • In urban areas where water is expensive, for
    washing, and gardening and to prevent local
    flooding
  • In public and commercial buildings with large use
    of water

5
? Uses /Benefits of Rainwater Harvesting
  • Water supply (Domestic, Industrial
    Agriculture))
  • Water Saving, ( as supplementary source)
  • Flooding control,
  • Drought mitigation
  • Water quality control
  • Disaster prevention (fire fighting)
  • Ground water recharging
  • Improve quality of ground water
  • Energy saving

6
Lanka Rain Water Harvesting Forum
  • Started by a small group in 1996
  • Membership from government, NGOs, Private and
    public sector
  • Share experience and technology on RWH for
    domestic use.

7
Problems faced by LRWHF
  • Lack of awareness of technology
  • Lack of skills on technology
  • High cost of tanks
  • Misconception about Water quality
  • Lack of policy

8
Activities
  • Promotion through awareness programs
    demonstration, media, video, symposium
  • Training
  • Research Development
  • Networking and Sharing Information

9
CREATING AWARENESS through Demonstration
projectsin Districts
10
Training programs for Masons , Technicians,
Professionals
  • Training of Trainers workshop

Masons on construction
11
Research Development
  • Low cost tanks
  • Improve water quality through filters, first
    flush
  • Study User patterns
  • Use of rain water agriculture
  • Ground water recharging methods

12
Different Types of Tanks Costs
Barrel tank
Above ground Ferro cement
Under ground brick tank
5000 lit Rs. 22,000
1200 lit Rs. 1500
5000 lit Rs. 28,000
Partial under ground tank
Plastic Tank
5000 lit Rs. 12,000
1000-5000 lit Rs. 8,000-45,000
40 lit Rs. 1000
13
Improve Water Quality
  • First Flush
  • Inlet Filter
  • Down pipe filter

14
User Pattern
15
Home Gardening Agriculture
  • Run off tanks

16
Ground Water Recharging
17
NATIONAL RAINWATER POLICYAND STRATEGIESJune 2005
Policy Objectives
  • In the light of increasing operational and
    maintenance costs to, rationalize investments
    ,both by Government and non Government sectors,
    in the field of pipe borne water supply,
    drainage, flood control, soil conservation etc,
    and promote the practice on a Regional Community
    and family basis, in order to ensure that the
    City of tomorrow applies Rain water harvesting
    broadly ,by the control of water near its source,
    in its pursuance of becoming a Green city in
    the future.

18
Identified benefits to the community
  • Easy access to clean drinking water
  • Less time spend on collecting water
  • Skilled enhancement in the village
  • Less reliance on external water providers
  • Safe water in high fluoride areas
  • More water security at household level.
  • Better Sanitation practice due to more water
    available.

19
Lessons learned
  • Awarness to Community and officials was improtant
    at the initial stage
  • Establishment of policy is useful in obtaining
    official support
  • Community contribution and involvement is
    important since this creates a sense of ownership
  • Training on Operation and Maintenance of the
    system is important for long term use
  • Education on health hygiene to the comunity is
    important to ensure safe drinking water
  • Improvment in technology gt improved water quality
    gt acceptability.
  • Introduction of simple water treatment methods
    and water quality monitoring at HH level improved
    use for drinking

20
Thank You
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