SubSol Project Vietnam

Transcription

1 SubSl Prject Vietnam Missin February/March 2017

2 Grundwater slutins in castal areas Financed by the E.U. Cmmissin H2020. SubSl Prject Cnsrtium f 15 research institutes and private firms in the E.U. Emerging frm the lack f slutins t address the issues f saltwater intrusin and fresh water scarcity Objective f activities in 6 glbal destinatins: Assessment f framewrk cnditins in the Mediterranean regin, Western Eurpe, Mexic, Brazil, China and Vietnam Identificatin f key partners Develpment f Subsurface Water Slutins (SWS)

3 adelphi prfile: Independent think tank and public plicy cnsultancy n climate, envirnment and develpment 150 experts with ver 800 prjects in 85 cuntries we ffer: Plicy analysis and advice Applied research Technical advice Dialgue prcesses and trainings yur cntacts fr Vietnam: Rnjn Chakrabarti and Jnas Bunsen

4 adelphi s activities in Subsl Assess situatin in identified sites regarding saline intrusin and freshwater shrtage Analyse lcal plitical and legislative cnditins Present subsurface water slutins (SWS) Tie up with key stakehlders and future partners Identify strategies fr implementatin f SWS C-develp lcally adapted slutins

5 Fresh water scarcity: imbalance between the availability and demand f fresh water Traditinally: The prblem Situatin in Hlland - Expensive surface strage slutins r - Unsustainable slutins (desalinizatin + saline residue management) Situatin in castal areas: Fresh water scarcity + salinizatin

6 Aquifer Strage and Recvery Hlland in 80 s: ASR (Aquifer Strage and Recvery) was intrduced t cunteract the imbalance between demand and availability But many f the small-scale ASR systems failed in castal areas due t buyancy effects => Stimulatin f research and develpment f new innvative methds fr fresh water strage: SWS SWS principle based n ASR

7 SWS slutins SWS are new tls that cmbine technlgy with advanced grundwater management t prtect, enlarge, and utilize fresh grundwater resurces. Sphisticated new well designs, cnfiguratins, and management strategies were designed t btain maximum cntrl ver the water resurces. SWS can prvide rbust, effective, and cst-efficient slutins t manage freshwater resurces.

8 Challenges in castal areas Seawater intrusin in castal areas freshwater supply under pressure Overexplitatin f freshwater lenses Lw efficiency f cnventinal ASR systems Upcning f brackish/ saline water Mdified after KWR (2015)

9 Implementing subsurface slutins Freshmaker Management f freshwater lenses ASR Castal ASR with partially penetrating wells Freshkeeper Well cnfiguratins t prevent upcning Mdified after KWR (2015)

10 SWS in different castal settings Freshmaker e.g. belw artificial islands ASR Castal fr mdern castal cities Freshkeeper fr lcal shallw freshwater r deeper aquifers Mdified after KWR (2015)

11 Reference Sites in Eurpe Drinking Water Supply: Freshkeeper, Nardburgum Urban Water Strage: Freshmaker, Ovezande Agriculture: ASR-Castal, Westland

12 Freshkeeper, water supply in Nardburgum Prevent saltwater intrusin t freshwater wells 2 RO 1 Freshkeeper 3 Cncentrate dispsal

13 Multiple Partially Penetrating Wells (MPPW) + ptinal Reverse Osmsis (RO) Freshkeeper (prtect water supply in abstractin wells prne t salinizatin: intercept upcning) RO Freshkeeper Objective f SWS: Target cnditins: Artificial recharge: Saltwater interceptin: Well type: Water treatment: Prtect well fields Stratified grundwater quality N Yes MPPW + RO Pre-treatment Cncentrate dispsal

14 Hrizntal Directinal Drilled Well (HDDW) Infiltratin thrugh hrizntal wells, t enlarge and utilize freshwater lenses in castal areas

15 Rijk-Bnman Fruits Ovezande Enlarge natural freshwater lenses fr irrigatin use in summer Objective f SWS: Target cnditins: Artificial recharge: Saltwater interceptin: Well type: Water treatment: Tempral strage Freshwater lenses Yes Yes HDDW Pre-treatment

16 inject water deep, recver in upper area in brackish grundwater envirnments ASR Castal in Westland

17 Multiple Partially Penetrating Wells Prminent Tmates Efficient strage and recvery f freshwater in brackish aquifers Objective f SWS: Target cnditins: Artificial recharge: Saltwater interceptin: Well type: Water treatment: Tempral strage Brackish aquifers Yes N MPPW Pre-treatment KWR and arcadis 2016

18 Subsequent steps f cperatin Assess scpe f prblem related t the shrtage f fresh water and saltwater intrusin in the cast and demands and barriers fr SWS slutins Identify lcal stakehlders wh are interested in future cperatin Assesss plicy and legal framewrk cnditins fr SWS slutins C-develp first ideas fr suitable slutins by adapting t lcal specific framewrk cnditins and draft prpsal fr pilt prject Organize slutin prmtin event tgether with prject partners and lcal stakehlders Pssibly invite partners t ur reference sites in Eurpe when cncrete prject plans are made at a target site Prepare prpsal fr submissin t funding rganisatin

19 Thank yu fr yur attentin SubSl cnsrtium