Presentation to Sheik Ebrahim on GrahamTek Technology
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Transcript of Presentation to Sheik Ebrahim on GrahamTek Technology
Presentation
GrahamTek’s Technology Development ith L Di t RO t B d kwith Large Diameter ROs at Bedok
NEWater,Power Seraya and Perth, etc.
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History of GrahamTek’s Development:
A) Under Apartheid R le So th Africa had to de elop its o nA) Under Apartheid Rule , South Africa had to develop its own technology such as coal to oil due to sanctions. This is one of them
B) By 2001 GrahamTek had already large diameter TechnologyB) By 2001 GrahamTek, had already large diameter Technology ( 16 x 50 inch ) in use in RO plants in Ireland and South Africa
C) In mid 2003, the large diameter RO study was initiated by the US Bureau of Reclamation and a Consortium comprisingUS Bureau of Reclamation and a Consortium comprising major companies came to look into the next generation membranes:
• Dow FilmTec• Dow FilmTec• Hydranuatics• Toray Membrane America• Trisep• Koch Membrane Systems
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• Koch Membrane Systems
Consortium accepted the study by end 2004
Objective of Study by US Bureau of Reclamation:Objective of Study by US Bureau of Reclamation:
• Identify the next generation element size standard diameter that would augment the existing 8 inch diameter membrane standard.standard.
• Preserve element interchangeability between various suppliers to ensure competitive procurement
• Estimate reduce capital and construction costs of large size reverse osmosis plants through reductions in the number of elements, pressure vessels and RO skid components . , p p
• Estimate reductions in the plant foot print and savings in O&M costs, life cycle costs
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The above study was done by Lisa Henthorne of CH2, And she was also the past IDA president
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The study showed that larger diameter elements provided cost savings against the 8 inch RO. ( source of data : Bureau of Reclamation, Large Diameter Membrane Consortium, 2004 )
Life Cycle Costs % of 8" Diameter Elements
Life Cycle costs , % of 8” Diameter RO Elements
96%
98%
100%
102%
Cos
t
90%
92%
94%
96%
er E
lem
ent L
ife C
ycle
12.52550100150
84%
86%
88%
% o
f 8"
Dia
met
e 150
80%
82%
BrackishGround
Water - 8"
BrackishGroundWater -
16"
BrackishGroundWater -
20"
BrackishSurface
Water - 8"
BrackishSurfaceWater -
16"
BrackishSurfaceWater -
20"
Seawater- 8"
Seawater- 16"
Seawater- 20"
5The above show life cycle cost savings from using large diameter ROs
in seawater and brackish water RO plants
What is the GrahamTek RO Technology?A d h i it li d?And how is it applied?
GrahamTek is to date, the market leader in large diameter ( 16 inch ) RO membranes , having 2 reference plants in Singapore .
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, g p g p
GrahamTek 16” RO TechnologyGrahamTek 16 RO Technology GrahamTek’s RO Technology consists of :
• a patented Flow Distributor mounted at the inlet to each RO membrane and
• a patented Electro Magnetic coil wound round the RO pressure vesselp g p
Flow Distributor & membraneATD
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Sectional View
Provides for a very even distribution of Flow within RO membrane
Why Better Performance?More even feed velocity distribution at membrane inlet demonstrated by Computational Fluid Dynamics SimulationSimulation
8‐inch FS (1.18 m/s)
( / )
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16‐inch 2EPV (0.84 m/s) Super‐Flux NW (1.91 m/s) Super‐Flux PSA (2.15 m/s)
Courtesy of How Yong Ng, National University of Singapore
RO Pressure Vessel
CoilsCoils
Magnetic Field Patterns on Vessels
- Reduce scaling in RO membraneM i t i t bl f
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- Maintain stable performance( Research was conducted by
Prof Hans Coster of Uni of NSW)
How is GrahamTek Positioned?
GrahamTek is not a membrane manufacturerBut is leader in large diameter ROs It has technology ( patents ) which enhances the performance of any RO systemG h T k i lik th INTEL f th RO ld hGrahamTek is like the INTEL of the RO world where our technology enhances the performance of RO elements made by othersWe don’t compete with anybody
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Manufacturers
GrahamTek R&D at PUB Bedok NEWater Factory
decide to adopt 16 x 40 as standard
y2005 IDA in Singapore
Super Flux design with 4 elements
Dec 04 June 06
Per vessel
Aug 06Till to-date
with Koch 16 x 50 membranes
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13000 hrs ( 20 months ) Pilot Testing with 2:1 Vessel Array (1st Phase)
16 Months Testing with16 x 40s Hydranautics and Saehan
( 2nd Phase )
Super-Flux Testing Program At Bedok NEWater FactorySuper-Flux Testing Program At Bedok NEWater Factory
16 Nov 06 : Start of Side Port Programme
Side – Port Testing Programme
Programme
25 Nov 06To-date End-Port Testing Programme
Start on 14 August 06
17 Oct 28 Nov Time line
GrahamTek confirmed that use of 16 inch End Port vs Side Port Does not make any difference in performance
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The Demo Plants at PUB Bedok was used for R&D over 5 years y
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GrahamTek performed R&D in many universities ,on effects of EMF – by world renowned Professors Tony Fane, Hans Coster
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20 Months Pilot Testing:20 Months Pilot Testing:Comparison with 8” RO
Process PerformanceParameters GTK 16” RO Pilot Same 8” RO PlantParameters
Using same feedwater
RO Feed Pressure 9.7-11.0 bar 8.5 – 9.5 bar
RO Permeate Flow 29.1 M3/hr 14.7 m3/hr ( equivalent RO permeate flux
9000 ft )x 9000 sq ft )
RO Recovery 75% 75%
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RO Permeate Flux 20.5 gfd 10.3 gfd
20 Months Pilot Testing (cont’d ) :20 Months Pilot Testing (cont d ) :Comparison with 8” RO
Process PerformanceParameters ( cont’d)
GTK 16” RO PilotOverall Membrane Area: 9000 sq ft
Same 8” RO PlantOverall Membrane Area: 204,400 sq ft
Unit Power Consumption
0.56 kwh/m3 0.7 kwh/m3
pH 5.7 6.0-6.2
Conductivity 25 uS/cm 70 uS/cm
Total Dissolved Solids 12 mg/lit 34 mg/lit
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Total Organic Carbon 54 ppb 80 ppb
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In August 06 , PUB accepted the results of h S Fl D Pl i 20the SuperFlux Demo Plant testing over 20 months and specified the GrahamTek RO technology in the 55 000 m3/d extensiontechnology in the 55,000 m3/d extension
at The Bedok NEWater Factorye edo ate acto y
7 RO trains was commissioned in April and
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Plant Proving completed on June 08
30 Days Plant Proving : 17 May 08 to 19 June 0817 May 08 to 19 June 08
19World’s First GrahamTek 16 inch RO NEWater Plant at Bedok
( 55,000 m3/day )
Comparison between 16” GrahamTek RO skid with conventional 8 “ RO skid for a 8000 m3/dwith conventional 8 “ RO skid for a 8000 m3/dat Bedok NEWater Factory
8” RO Skid 16” GrahamTek RO Skid
Pressure VesselsStage 1 49 vessels 12 vesselsStage 1Stage 2Total nos
49 vessels24 vessels73 vessels
12 vessels6 vessels
18 vessels ( ratio 4:1 )
RO Membranesl 7 4per vessel
Total nos7511
472 ( ratio 7.1 : 1 )
Overall Skid Length 7.85 m 5.53 m
Overall Skid Width 8.125 m 4.80 m
F t P i t A 63 78 2 26 5 2 ( ti 2 4 1 )
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Foot Print Area 63.78 m2(1 skid of 3 RO banks )
26.5 m2 ( ratio 2.4 : 1 )( in 1 RO skid )
The above table shows the competitiveness of the GrahamTek 16 inch RO system
Some performance data of the 55,000 m3/day at PUB’s Bedok NEWater FactoryPUB s Bedok NEWater Factory
6 RO Trains with Hydranautic Membranes1 RO Train with Seahan Membranes
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56 MLD NEWater Phase 2 Expansion Secondary Effluent Reclamation at PUB Bedok
C i i D t A il 23 2008
DATA:7 PUB RO TRAIN Membrane : HYDRANAUTICS
ESPA 2 (16" x 40")A i S f A 12 0 f
600
Commission Date: April 23, 2008Flow
Active Surface Area : 1270 sqftRO System Design : 2-Stage 2:1 PV Elements per Vessel : 4 nosOperating time : ~2760 hrs.To-date : April 29 - September 29, 2008
500Av. Feed Flow = 453.3 m3/h
300
400
Flow
, m3 /h
Av. Overall Product Flow = 344.5 m3/h
100
200
Av. Stage 2 Product Flow = 116.1 m3/h
Av. Stage 1 Product Flow = 228.4 m3/h
0
Cumulative Operating hours
Stage 1 Product Flow Stage 2 Product Flow Overall Product Flow Feed Flow
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56 MLD NEWater Phase 2 Expansion Secondary Effluent Reclamation at PUB Bedok
C i i D t A il 23 2008
DATA:7 PUB RO TRAIN Membrane : HYDRANAUTICS
ESPA 2 (16" x 40")A i S f A 12 0 f
90%
Commission Date: April 23, 2008Recovery
Active Surface Area : 1270 sqftRO System Design : 2-Stage 2:1 PV Elements per Vessel : 4 nosOperating time : ~2760 hrs.To-date : April 29 - September 29, 2008
70%
80%
90%
Av. Overall Recovery = 76.0 %
50%
60%
ecov
ery,
%
Av. Stage 1 Recovery = 50.4 %
Av. Stage 2 Recovery = 51.6 %
20%
30%
40%
Re
10%
20%
Cumulative Operating hours
Stage 1 Recovery Stage 2 Recovery Overall Recovery
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56 MLD NEWater Phase 2 Expansion Secondary Effluent Reclamation at PUB Bedok
C i i D t A il 23 2008
DATA:7 PUB RO TRAIN Membrane : HYDRANAUTICS
ESPA 2 (16" x 40")A i S f A 12 0 f
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Commission Date: April 23, 2008Flux
Active Surface Area : 1270 sqftRO System Design : 2-Stage 2:1 PV Elements per Vessel : 4 nosOperating time : ~2760 hrs.To-date : April 29 - September 29, 2008
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30Av. Stage 1 Flux = 23.7 gfdAv. Stage 2 Flux = 24.1 gfdAv. Overall Flux = 23.9 gfd
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Flux
, gfd
18
21
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Cumulative Operating hours
Stage 1 Flux Stage 2 Flux Overall Flux
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PSA marine SWRO Desal Plant
Capacity :1000m3/d
The PSA plant is both a commercially viable plant as well as a R&D and
Test Facility for GrahamTek
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It was commissioned in Aug 03 but de-commissioned in April 08
Progress on GrahamTek SWRO Technology:
GrahamTek SWRO Desalination Plant design uses a 2 stage design concept to ensure high cross flows over the membrane surface thus avoiding severe membranethe membrane surface thus avoiding severe membrane fouling.
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The PSA plant was retro fitted with pthe SuperFlux design in July 06
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GrahamTek’s 16 inch RO technology was applied to theGrahamTek s 16 inch RO technology was applied to the PowerSeraya SWRO plant with capacity of 10,000 m3/d
The SWRO desal plant is located on Jurong Island , Singapore
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GMF –Stage 2
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RO pass 1 Train
3232
RO pass 2 Trains
3333
Key Performance Indicators
SDI < 3.5 100% of time Feed Cond. : 43.4 to 44.9 Us/cm1st Pass Flux : 13.9 gfd, Recovery : 45%
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2ndPass Flux : 24.4 gfd Recovery : 85%Power consumption : 3.95 kwhr/m3 (whole plant)RO power consumption: 2.95 kwhr/m3
Degremont in early 2008 requested a GrahamTek pilot plant atDegremont in early 2008 requested a GrahamTek pilot plant at their Perth, Kwinana site
for side by side comparison with their 8 inch RO plant
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G h T k SWRO Pil t Pl t t D t’ P th K i itGrahamTek SWRO Pilot Plant at Degremont’s Perth Kwinana site
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Comparison of design for Perth Desal Plant for Degremont
Degremont 8 inch Skid GrahamTek 16 inch Skid Designed output Flows
Pass 1Pressure Vessels 162 nos 28+14 = 42 nos 555.5 m3/hrMembranes 162 x 7 = 1134 42 x 5 = 210
Pass 2Pressure Vessels 78 + 26 = 104 nos 12 + 6 =18 nos 916.5 m3/hrMembranes 104 x 7 = 728 18 x 5 = 90
TotalPass 1, 12 skids 1,944 Vessels 504 vessels
13,716 elements 2,520 elements, ,
Pass 2, 6 skids 624 vessels 108 vessels4,368 elements 504 elements
Footprint Comparison: 8 inch RO skid vs 16 inchGT RO skid
Degremont 8 inch Skid GrahamTek 16 inch Skid
64.8 m2 42.2 m2
100% 65%
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To-date, Grahamtek has penetrated the Korean market and the GrahamTek technology is used in a
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the GrahamTek technology is used in a Korean Government National R&D seawater RO project
Conclusion:Conclusion:• Grahamtek has successfully pilot tested its 16 inch RO system on both
seawater as well as NEWater type applications
• Established good reference projects for both seawater as well as brackish water membrane applications
• GrahamTek is first in the world with 16 inch diam RO technology
• With cooperation from key suppliers such as Codeline andWith cooperation from key suppliers such as Codeline and HYDRANAUTICS & Saehan GrahamTek has successfully established worldwide industry standards for the 16 inch RO Industry
Singapore is also the first country in the world to use 16 inch RO• Singapore is also the first country in the world to use 16 inch RO technology
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