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Water Purification Systems
Citation preview
1
Local Small Scale Autonomous
Water Treatment
2
Background
Vitens – Turnover 475 M euro
– 2,3 M connections
– Distribution network 47,500 km
– Productionlocations 100
– 330.000.000 M3 yearly
– Employees 1500
– 124 Ltrs./capt/day
– Vitens International
– Public company
Water4all -Integrator/provider of technology
-Partners
Vitens
Rook bv
Friesland Foods
Imtech
VDL
DSM
-Technology to market
-Exclusive licenses
3
Background
• Watershortage –watercrisis
• Environmental issues
• Energy consumption
• Transmissionlines/distribution networks
• World population 50 % Urban- 50 % Rural
• Wateracces 64 % Urban- 30 % Rural
• High volume centralized treatment-plants
• Leakages
• Growing population increasing waterconsumption
• 80-20 rule watersources vs exploration.
• Effective water usage
• Awareness
• Rainwater harvesting
• Reuse/ Cascading Grey-water treatment
• Terror
• Nature
• Millenium goals
• Health
• Culture
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Small scale autonomous treatment
• Treatment for small communities (<1000 m3/day)
• No operator required
• 99.999 % reduction in microorganism and colloidals
• Low energy consumption ( use of solar energy)
• No logistics
• Steady ,autonomous treatment process
• Fast responding process
• Reliable and fail-safe
• Very low use of chemicals or no use of chemicals
• Minimum 2 mnth service (only change of consumables)
• Portable systems mounted in a container
• Remote control operation
• Competitive costs/m3
5
• WHO guidelines for drinkingwater quality
• TS-266
• EU • Waste-water treatment directive
• Drinking water directive
• Dutch water standards ( water law)
6
EUF removal
EUF removal with Nano filtration extended
7
Application areas
• End of line use.
• Drinking water production
• Upgrading services
• Rain water harvesting
• Small communities – Villages, compounds, agglomorations, hotels, shopping malls, etc
• Reuse of domestic water
• Effective use of water
• Exploring smaller sources ( networking)
• Modulair capacity building
• Reduced bureaucratic procedures
• Fast disaster response
• Re-use (grey-water) – Flushing, Washing, Irrigation, Infiltration, Awareness, Safe-Storage, Industrial use
etc
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Containerized process
9
Basic configurations
10
History of development
• Dutch watertechnology
• Dutch trade mission september 2006
• Interest ISKI , DSI
• License agreements
Local small scale water-treatment
• Finance by Dutch government (PvW)
– Prove economical feasability
– No technological feasability
– Known technology in unique configuration
– Benefits for both countries
• Start august 2008- may 2009
• Pilot-process test-equipment at ISKI for demo.
11
Process design
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Results
0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
216 240 264 288 312 336 360 384 408 432
Hours from measurement start
Transm
embra
ne pre
ssure
[bar]
TMP (ini)
Alibey ham su- Holtu temiz su çıkış Bulanıklık (NTU) değerleri
(19 Ocak- 6 Mart 2009)
0
20
40
60
80
100
120
140
160
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
numune sayısı (19 Ocak- 6 Mart 2009)
Alib
ey H
am s
u - H
oltu
tem
iz su
çık
ış
Bula
nıkl
ık (1
0*NT
U)
Alibey Ham su
Bulanıklık
(10*NTU)
Holtu Temiz su
çıkış Bulanıklık
(10*NTU)
13
Remote monitoring & control
14
Results Alibey ham su- Holtu temiz su çıkış pH değerleri
(19 Ocak- 6 Mart 2009)
6,2
6,4
6,6
6,8
7
7,2
7,4
7,6
7,8
8
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
numune sayısı (19 Ocak- 6 Mart 2009)
Ali
bey
Ha
m s
u -
Ho
ltu
te
miz
su
çık
ış (
pH
)
Alibey ham su
pH değerleri
HOLTU temiz
su çıkış pH
değerleri
Alibey ham su- Holtu temiz su çıkış Fe (mg/L ) değerleri
(19 Ocak- 6 Mart 2009)
0
0,02
0,04
0,06
0,08
0,1
0,12
0,14
0,16
0,18
0,2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
numune sayısı (19 Ocak- 6 Mart 2009)
Alib
ey
Ha
m s
u -
Ho
ltu
te
miz
su
çık
ış F
e
(mg
/L )
Alibey Ham su Fe (mg/L)
Holtu temiz su çıkış Fe
(mg/L)
Surface-,ground-, grey- and rain water
usable
No Bacteria found
No OZON >> no bromate
No Sulfate
Reduction of Phospfate
Reduction of Arsenic
Reduction of Ammonia
No effect on Chlorine
TOC can be lowered
Energy Electricity (Operational system calculated)
2 pumps
Electrode 7,5 Watts/M3
Controls fixed independing of treatment capacity
<110 Watts/M3 (300M3/day capacity)
Optimized target 80 Watts/M3
Alibey ham su- Holtu temiz su çıkış Bulanıklık (NTU) değerleri
(19 Ocak- 6 Mart 2009)
0
20
40
60
80
100
120
140
160
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
numune sayısı (19 Ocak- 6 Mart 2009)
Alib
ey
Ha
m s
u -
Ho
ltu
te
miz
su
çık
ış
Bu
lan
ıklık
(1
0*N
TU
)
Alibey Ham su
Bulanıklık
(10*NTU)
Holtu Temiz su
çıkış Bulanıklık
(10*NTU)
15
• Coagulation.
• Flock growing
• Flock removal
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• Fe AL >>>>>> no by-products
17
18
19
Reactor
Effect on flockgrow;
Flow
Shear
Time
Viscosity
Flux
Density of pollution
Reynold’s
WIshed flocksizes >> 0,02 um stay on membrane surfaces not in pores
20
Economics
• Funding
• Investment in local economy • ( labor/manufacturing)
• Savings
– Financial
– Environmental
21
Small tranferred to Large
22
• Comparison pre-treatment processes
• Chemical coagulation in-line DAF Electro-coagulation with UF filtration
• Dimensions Big Small
• SDI SDI =1 Process adjustment depending DSI << 1 Guaranteed
• Energy consumption High Low
• Chemical usage for treatment Normal None
• Controllability General High
• Sludge forming General Low
• By products Normal depending on used chemicals None
• Speed of process response Normal High
• Expected RO uptime Normal Longer
• Operational costs Normal Low
• Capital costs Normal Normal
Contact Information
Packing Technologies S.A.
23