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Mohammad Ali,Mohammad Ali, Public Health Engineer, OxfamPublic Health Engineer, Oxfam

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Rationales/JustificationsRationales/Justifications

Scarcity of safe water due to arsenic contamination and salinity

in the SWTs.

Explore the reasons of non-functioning of traditional PSFs and

.

DPHE & Oxfams interests on using Renewable energy as

electricity grids are not available in remote rural areas.

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Solar operated PSF informationSolar operated PSF information

Upazilla Union Village Funded by Year of

Construction

Monirampur

Khanpur Shilumpur GDS & Oxfam Aug, 2011

Kultia Poradanga GDS & Oxfam Sep, 2009

Shamkur Shamur GDS & Oxfam Aug,2010

Shamkur Halsha GDS & Oxfam Aug, 2009

Satkhira

Assassuni Gaiakhali GDS & Oxfam July,2009

Assassuni Sreekalash GDS & Oxfam July,2009

Budh hata Kundu ria GDS & Oxfam July,2009

Dacope Kamarkhal Parjoynagar UNICEF June,2011

Sutarkhali Sutarkhali UNICEF June,2011

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Major factors considered to design this PSF operated by Solar?Major factors considered to design this PSF operated by Solar?

Ensure continuous flow in the PSFs.

Encourage bio-sand filter.

Mechanized Solar pump for ensuring continuous flow.

Introduced double action lift pumps in case of

. Introduced sensor to prevent overflow and ensure

continuous flow.

Introduced lighting system at the night by solar thuspromote protection.

Considered pond protection

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Pond Sand Filter operated by Solar energyPond Sand Filter operated by Solar energy

Basic information on design andcost:

Designed for 200 HHs or 1000

individuals. Bio-sand filter

Following SPHERE, eachindividuals requirementses ma e as re ay.

Introduced mechanizedpumping system forcontinuous flow.

PSF cost was almost

2,20,000BDT excluding pondrenovation.

Solar system cost was 1,61,000BDT

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Drawing & Design of PSFsDrawing & Design of PSFs

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Design & Drawing of PSFsDesign & Drawing of PSFs

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Technical design of solar system of PSFTechnical design of solar system of PSF

Solar PV Module : 2nos. 65Wp Module, Total 130Wp

Pump : Submersible centrifugal Pump

, .

Lift: 8m

Cost: 1,60,971 BDT

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Pump sizing based on the requirementsPump sizing based on the requirements

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Different components of PSF operated by Solar systemDifferent components of PSF operated by Solar system

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Water quality test results of solar operated PSFsWater quality test results of solar operated PSFs

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Water Quality Test Report of UNICEF funded Solar PSFsWater Quality Test Report of UNICEF funded Solar PSFs

Type of te T.T.C

chloride

ppt

cfu/100

ml pond Tape

Turbidity / NTU

Sl No.

Name of

Water Village Union Upazilla

Water

Sample

Sample

AanalysisTypes of Test

Pond 4 0.7 60 5Up floor r 2 - - -

Slow sand 2 - - -

Tap 0 - - -

Pond 6 1.2 125 5Up floor r 3 - - -

Slow sand 3 - - -

Tap 0 - - -

21.08.11104 khali DhaliSutarkhali Sutarkhali 20.08.11

. . . .

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Different Photos of PSFDifferent Photos of PSF

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Sustainable Mechanisms for PSFSustainable Mechanisms for PSF

Community Participation is ensured at every stages.

Water management Committee.

User Training

Caretaker trainin .

Beneficiaries are saving money for necessary O & M.

Hand over to local community with close supervision by

DPHE for O & M.

LEBs are engaged.

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Major lessons learnt from the ProjectsMajor lessons learnt from the Projects

General & For Solar system:

Activation of WMC after phase out of the project.

Accountability and transparency of the management committee.

After phase out, relevant stakeholders responsiveness.

ene c ar es are sa s e .

Environmentally friendly as contributing nothing to global warming

The efficiency of the solar system also varies on the season and location of

the sun.

Solar system design could be little bit higher than the requirements.

In many cases, Solar system providers dont have any local office.

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More effective for bacteria removal due to biological activities.

Easy operation & maintenance

PSFs are expected to be long term functional.

No laborious manually pumping

Establishment cost of the PSF with solar s stem is com arativel hi h but

Lesson learntLesson learnt

covering more people.

Availability of pond water throughout the whole year especially in the dry

season. Lack of advocacy initiatives for protection (Saline intrusion, Shrimp culture)

of the sweet water pond in the coastal reasons

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Way ForwardWay Forward

Reduction of the cost may be explored for scaling up the technologies

DPHE could take lead to replicate the interventions.

Step forward to encourage private sectors to establish Regional/local solar

service providers.

Initiate to preserve sweet water pond at Arsenic and Saline contaminated

areas. DPHE could take lead role to motivate the Land ministry and other

relevant ministries.

Aware policy makers regarding solar technology to provide scope in the

investment plan.

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Location VillageSTWarsenic

status

Intervention

provided

Solar operated MPWSSolar operated MPWS

Shymkur,Monirampur

o ga o ar opera e

Hashadanga 100% Solar Operated MPWS

Khanpur,

Monirampur

Munshi

Khanpur80% Solar operated MPWS

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Thank youThank you