Excursion swimming pool De Heerenduinen in Velsen Maarten Keuten - - PowerPoint PPT Presentation

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Excursion swimming pool De Heerenduinen in Velsen Maarten Keuten - - PowerPoint PPT Presentation

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Excursion swimming pool De Heerenduinen in Velsen Maarten Keuten M.G.A.Keuten@TUDelft.nl Velsen October 09, 2007 1 Program Introduction pool water treatment Future pool water treatment Guided tour through technical rooms

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SLIDE 1

October 09, 2007

1

Excursion swimming pool

Velsen

De Heerenduinen in Velsen

Maarten Keuten M.G.A.Keuten@TUDelft.nl

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SLIDE 2

October 09, 2007 2

Program

  • Introduction pool water treatment
  • Future pool water treatment
  • Guided tour through technical rooms
  • water treatment
  • ventilation / air conditioning
  • Closing
  • Return to Delft
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SLIDE 3

October 09, 2007 3

I ntroduction pool water treatment

  • Dynamic bathing load
  • Main requirements
  • Treatment techniques
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SLIDE 4

October 09, 2007 4

Filling a swimming pool

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SLIDE 5

October 09, 2007 5

Filling a swimming pool

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SLIDE 6

October 09, 2007 6

Filling a swimming pool

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SLIDE 7

October 09, 2007 7

Filling a swimming pool

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SLIDE 8

October 09, 2007 8

Filling a swimming pool

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SLIDE 9

October 09, 2007 9

Filling a swimming pool

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SLIDE 10

October 09, 2007 10

Filling a swimming pool

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SLIDE 11

October 09, 2007 11

Filling a swimming pool

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SLIDE 12

October 09, 2007 12

Filling a swimming pool

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SLIDE 13

October 09, 2007 13

Filling a swimming pool

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SLIDE 14

October 09, 2007 14

Dynamic bathing load

hair skin fragments urine bacteria saliva cosmetics soap residue sweat faecal matter vomit blood sand, leaves, grass food & drink leftovers cleaning chemicals NOM such as humic acids

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SLIDE 15

October 09, 2007 15

Main requirements

  • Acceptable microbiological risks
  • Clear view till the pool bottom
  • No accumulation of chemical components
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October 09, 2007 16

Pool water treatment

  • Primary techniques
  • filtration of particles
  • coagulation of smaller particles
  • disinfection of microorganisms
  • Secondary techniques
  • pH correction
  • oxidation of pollutants by chlorine
  • heating
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SLIDE 17

October 09, 2007 17

Pool water treatment

  • Additional techniques
  • BAC filtration
  • ozonation
  • UV-treatment
  • Ultrafiltration
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October 09, 2007 18

Pool water treatment

filtration circulation flocculation heating pH-correction

  • xidation/disinfection

supplement water buffer pool basin

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SLIDE 19

October 09, 2007 19

Bi-Flow filtration

1200 500

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October 09, 2007 20

Swimming pool risks

Risks Concentration free chlorine

Micro’s free chlorine free chlorine Total Chlooramines

  • and trends
  • Acceptable

risk rest DBP’s

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SLIDE 21

October 09, 2007 21

Future pool water treatment

UV treatment is used in drinking water treatment and is effective for many microorganisms. Can we make microbiological safe swimming pool water with an innovative pool water treatment based on UV treatment.

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October 09, 2007 22

Balancing the risks

Without chlorine, there is no DBP risk. The microbiological risk in a non-chlorinated pool should be comparable with the sum of chemical and microbiological risk in a chlorinated pool.

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October 09, 2007 23

PhD study

Research topics:

  • SwimRisk study (balancing the risks)
  • Biofilm formation potential
  • Lab & field experiments
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October 09, 2007 24

Biofilm formation potential

  • Influence water
  • organic matter
  • growth reducing factors
  • water treatment
  • Influence materials en coatings
  • Concepts for cleaning
  • mechanical; cleaning probes or cleaning equipment
  • chemical; sodium hypochlorite, CuSO4, H2O2 or others

(shock treatment)

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October 09, 2007 25

Lab & field experiments

  • jar tests
  • bath tub / pilot plant experiments
  • full scale field experiments
  • technical exploitation
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October 09, 2007 26

This is not possible without chlorine

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October 09, 2007 27

This is possible without chlorine