pumping station andijk (pwn) - tu delft ocw · pumping station andijk (pwn) drinking water...
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![Page 1: Pumping station Andijk (PWN) - TU Delft OCW · Pumping station Andijk (PWN) Drinking Water Treatment 2 | CT5520 Wouter Bakker and Harmen van der Laan Sanitary Engineering, Faculty](https://reader030.vdocument.in/reader030/viewer/2022041013/5ec39b3527c7a15a710755c1/html5/thumbnails/1.jpg)
April 20, 2007
Vermelding onderdeel organisatie
1
New pre-treatment AndijkPumping station Andijk (PWN)
Drinking Water Treatment 2 | CT5520
Wouter Bakker and Harmen van der Laan
Sanitary Engineering, Faculty Civil Engineering
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25 May 2007 2
Content
• Capacity• Optimization MIEX• Ultrafiltration• PID• Use of chemicals• Design Drawings
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25 May 2007 3
CapacityTotal design capacity:
three streets of 2000 m3/has the UV/H202 is designed
But, PWN can choose:two streets UF and/or MIEXespecially UF is really good
not the whole street has to be taken out of order in case of maintanance
Why 3 streets ? - Same strategy as for the UV/H202 : 3 streets- Multi barrier approach, in case of problems- There is capacity left for a larger future
demand
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25 May 2007 4
Optimization MIEX- Contactor:
During mixing the blades of the mixer destroy the resin particles. Since the resin particles are positively charged and the membrane is negatively charged, the resin particles will settle at the membrane surface.The resin particles on the membrane surface are very difficult to remove.
- Possible solutions:- A water jet that “shoots” the water tangently into the contactor. Because of the high velocity the resin will mix with the water.- Make an optimum design for the mixing blades.- By using air jets, to “shoot” the air through the contactor and mix the resin with the water”
-The resin separator-There has been some discussion on the design of the separator. Since it is necessary to have an on going resin flow, this design is the easiest to operate and built.
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25 May 2007 5
Ultrafiltration - coagulation
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25 May 2007 6
Ultrafiltration - backwash
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25 May 2007 7
Ultrafiltration - backwash
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25 May 2007 8
PID
= resin= water= backwash water= coagulant= used resin
Only the treatment till the UV/H202 in flow scheme
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25 May 2007 9
Ø 6 m
Ø 6 m
UF
MIEX
mic
rose
eve
UV / H202ba
ckw
ash
wat
er
coaregenresin
Ø 9.3 m
Ø 9.3 m
Ø 600 mm
Ø 600 mmØ 600 mm
Ø 600 mm
Ø 800 mm
Ø 150 mm
Ø15
0 m
m
Ø 800 mm
Ø60
0 m
m
air bw
UF
chem
Ø 600 mm
Ø 600 mm
Ø 6 m
Ø 6 m
UF
MIEX
mic
rose
eve
UV / H202
back
was
h w
ater
coaregenresin
Ø 9.3 m
Ø 9.3 m
Ø 600 mm
Ø 600 mmØ 600 mm
Ø 600 mm
Ø 800 mm
Ø 150 mm
Ø15
0 m
m
Ø 800 mm
Ø60
0 m
m
air bw
UF
chem
Ø 600 mm
Ø 600 mm
Ø 6 m
Ø 6 m
UF
MIEX
mic
rose
eve
UV / H202
back
was
h w
ater
coaregenresin
Ø 9.3 m
Ø 9.3 m
Ø 600 mm
Ø 600 mmØ 600 mm
Ø 600 mm
Ø 800 mm
Ø 150 mm
Ø15
0 m
m
Ø 800 mm
Ø60
0 m
m
air bw
UF
chem
Ø 600 mm
Ø 600 mm
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25 May 2007 10
Process regeneration Resin
MIEX
Mic
ro
siev
e
NaCl
brine
regves
m.u.resin
freshres
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25 May 2007 11
Use of chemicals for 4000 m3/h
Resin0.24 m3 resin / day that is a loss of 0,02% resin
Regeneration salt (NaCl)11.5 kg NaCl / day
KMnO413.9 kg KMnO4 / day based on the water quality
Backwash chemicals (Sodium hypochlorite NaOCl) 34,6 kg NaOCl / cycle (cycle = once every 4 to 7 days)
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25 May 2007 12
Drawings UF
Base idea: fit in the existing construction of RSFstripping the building, a new roof, same infrastructure
before
after
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25 May 2007 13
Drawings UF
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25 May 2007 14
Drawings UF
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25 May 2007 15
Drawings MIEX
No extra building structure necessary. Contact and sedimentation tank 'stand-alone'
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25 May 2007 16
Design drawings
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