Arbeitsgemeinschaft Badeseen und Schwimmteiche
Forschungsgemeinschaft Landschaftsentwicklung Landschaftsbau
e. V.
Deutsche Gesellschaft für das Badewesen e.V.
1. Basics of the Dimension according to fll
2. External water treatment
1. Different ex situ water treatment facilities
2. Specific elimination rates
3. Basics of the Calculation model for NSP
4. Trouble shooting
Author:
Stefan Bruns, Polyplan GmbH
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
Who is Polyplan
25 years experiences in
designing public pools
and bathing lakes.
27 Engineers, Architects
and Biologists are
located in Bremen,
Hannover and Warsaw.
www.polyplan-gmbh.de
Chlorine
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
Biological
Bathing lakes
Dipl. Ing.
Stefan Bruns
1 Basics of the FLL regulation
1.1 Exsitu- Insitu
1
Pool
(In situ)
Clear water volumen
flow
V3
Raw water
Volumen flow
(V1)
(V1=V3)
Biological water treatment
assording to Tab. 10-12
(ex-situ)
(V2)
Additional Water treatment
(phys. Chemical)
Volumen flow
Additional water treatment
(V2)
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
2 External water treatment
2.1 Different ex situ water treatment
fasilities
Hydro botanic
Constructed
wetlands
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
2
Substrate filter
Bio filter
2 External water treatment
2.1 Different ex situ water treatment fasilities
2
Hydro botanic
Constructed
wetlands
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
Bio filter
2 External water treatment
2.1 Different ex situ water treatment fasilities
2
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
2 External water treatment
2.2 Specific elimination rates
2
López Pila 2009
At spec. Hydraulic load of up to 900
cm/day , elimination rates of more
than 96,5 % of the E.coli 1.5 log
steps elimination of Giardia,
cryptosporidia Oocyst.
In Operation
600
Raw water
500
Dr. Heinemeyer,
Landesgesundheitsamt
Niedersachsen, Heiko
Frehse, Stefan Bruns,
2010
At spec. Hydraulic loads up to:
400
600 cm /day. 99,2 %
1200
300 cm 95 %
of the E.coli stemp
Quantity E. coli / 100 ml
I. Scholz, H. Frehse und
J. Spieker, 2004.
Clear water
Lab
experiement
200
at.100
spec. hydraulic load up to:
350 cm/day. 99,9 % of the E.coli and
int. 0Enterococci
were eliminated.
Filter
10.00
16.00
22.00
thicknes 1.4 m
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
Time
In operation
10.00
2 External water treatment
2.2 Specific elimination rates
2
Results of elimination rates according different species, HF = horizontal
filter, VF = vertical filter
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
2 External water treatment
2.2 Specific elimination rates
2
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
2 External water treatment
2.2 Specific elimination rates
2
Figure 38: Elimination rate of Colipharge with a constructed wetland
with 1.2 m (blue) and 1.7 m (violet) filter head.
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
2 External water treatment
2.3 Design aspects
Hydrobotanic
Biofilter / Substrate filter
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
2
3 Basics of the Calculation model for NSP
3.1
Impression of a high duty bathing day
3
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
3 Basics of the Calculation model for NSP
3.1
Calculation
3
Substance input by
filling water
CFW(Stoff)* VFW/VB
nBg(Stoff)* Sub. input
Substance input
by Bathers
Bg(Stoff)/VB
Tolerable
substance
concentration
C0 Wert
Tolerable
substance
concentration
TRed(Stoff)
T=0
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
T=Tred
3 Basics of the Calculation model for NSP
3.1
Calculation
Formular 1
nBg
C
 VFw
 C
0
Fw  unverdünnt

 exp  C0 
e
VB

 
VB

  Stoffinput
Bg
 
Variables:
nG
=
exp
Number of guests per day [G/day]
Refer to Formula 2
CFw undiluted
=
Concentration of substance or microorganisms in the filling water
[mg/m³ or cfu/m³]
VFw
=
Volume flow of filling water [m³/d]
VP
=
Pool volume [m³]
=
Initial concentration of substance or microorganisms [mg/m³ or cfu/m³]
Constants:
C0
[20 mg/m³] Ptotal P or 500,000 [cfu/m³] E. coli
Substance input G
=
Influx of substances and microorganisms per guest [mg/G; cfu/G]
[74 mg/G] Ptotal P or 120,000 [cfu/G] E. coli
e
=
Euler's number
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015




3 Basics of the Calculation model for NSP
3.1
Calculation
Formular 2
 V
T

Zoo

exp  
 Eli
 Re d  Zoo
Zoo
 V
24
 B
V

T
  n  WA (i)  Eli
 Re d  WA
 

WA (i)
24
 V
B
 i  1





 1
Variables:
VZoo
=
Filter volume flow of zooplankton [m³/d]
VP
=
Pool volume [m³]
VWP(i)
=
Volume flow of purification system examined (1..n) [m³/d]
EliP(i)
=
Elimination rate of water purification system (1..n), based on the examined substance [factor 1 = 100 %].
Depending on the water purification system (i) and the examined substance E. coli or Ptotal P, the value
specific to the system should be inserted here; refer to section 5.3.2
Tred. zoo
=
Time in which the substance reduction red by zooplankton is to occur [h]
Tred. WP
=
Time in which the substance reduction red by the filter system is to occur [h]
Elizoo
=
Elimination rate of zooplankton in the body of water, based on the examined substance [factor 1 = 100 %]
Constants:
Elizoo(E.coli) = 1 [factor] or EliZoo(Ptotal P) = 0.01 [factor]
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
3 Basics of the Calculation model for NSP
3.2
Variables
3
Stefan Bruns
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
3 Basics of the Calculation model for NSP
3.2
Results
Fll 2011
Extensiv
+
Semi extensiv
+
4,7 m³/Bg/d
VFillwater
Vclearwater
+
10 m³/Bg/d
10 m³/Bg/d
Semi intensiv
+
3,7 m³/Bg/d
+
2,8 m³/Bg
Intensiv
+
2,5 m³/Bg/d
+
1,0 m³/Bg
VBasinwater
Vspez
=
Tred Ecoli
=8h
Tred Pges-P
= 48 h
10 m³/Bg/d
=
14,61 m³/Bg/d
=
6,6 m³/Bg/d
=
3,5 m³/Bg/d
WA= Area of the Water
treatment plant in m²
NW= Area of the basin in m²
Zm= 1,5 m
Recirculation Rate = 0 d-1
Recirculation rate = 0,475 d-1
Recirculation rate = 0,84 d-1
Recirculation rate = 3,5 d-1
WA/NW 0/750 m²
WA/NW 82/750 m²
WA/NW 190/750 m²
WA/NW 530/750 m²
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
4
Trouble shooting
4.1
P.A. Exceeding Stadion bath Bremen
4
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
4
Trouble shooting
4.1
E. coli exceeding NSP Zeven
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
4
4
Trouble shooting
4.1
E. coli exceeding NSP Zeven
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015
Thanks for attention
Dipl. Ing. Stefan Bruns
www.Polyplan-Gmbh.de
6th International Conference Swimming Pool & Spa, Amsterdam, March 17-20, 2015