Žana topalović and boris jandrićhikom.grf.bg.ac.rs/stari-sajt/9udm/presentations/249_ppt.pdf ·...
TRANSCRIPT
![Page 1: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/1.jpg)
Žana Topalović1 and Boris Jandrić2
9th International Conference on Urban Drainage Modelling Belgrade 2012
1 University of Banja Luka, Bosnia and Herzegovina, [email protected], 2 University of Banja Luka, Bosnia and Herzegovina, [email protected]
![Page 2: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/2.jpg)
Introduction Storm drainage practice-to evacuate excess water
“as soon as possible” Paper shows potential effects of conventional
system reconstruction on: 1. stormwater quantity 2. stormwater quality 3. cost decrease, with inclusion of BMPs elements: a. dry detention ponds b. vegetated swales Case study: three mathematical model setup
simulation results comparison
![Page 3: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/3.jpg)
Methods Simulations of rainfall-runoff processes in
StormNET Simple pollution model included (pollution
build-up/wash-off process)-TSS, TP and BOD concentration simulated
One raingauge assigned-various rainfall events (50%, 20% and 10% prob. of exceedance)
Model’s sub-catchment characteristisc, conveyance length and pollution input data are the same
![Page 4: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/4.jpg)
Case study-present state 12 sub-catchments Input data
a. Pervious area depression depth 4 mm b. Impervious area depression depth 1.5 mm c. Soil conductivity 36 mm/h d. Manning's roughness for pervious areas 0.35 e. Manning's roughness for impervious areas 0.018 f. Suction head (for Green-Ampt method) 61 mm g. Initial moisture deficit (porosity minus initial moisture)
0.25
![Page 5: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/5.jpg)
I Conventional model
![Page 6: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/6.jpg)
II Conventional with source control
Same as previous except impervious surfaces are decreased-roofs are connected to pervious areas
![Page 7: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/7.jpg)
Reconstructed model II
D1 131m3
D2 35m3
Swales 260m instead of pipes
III Alternative model
![Page 8: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/8.jpg)
Pollution model
Typical pollution removals for chosen BMPs elements: TSS 30-65%, TP 15-45% and BOD ∼30%.
![Page 9: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/9.jpg)
Cost analysis
Comparison of construction costs Conventional system prices Alternative system prices
![Page 10: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/10.jpg)
Results
Runoff hydrographs comparison
Flow
(lps
)50
45
40
35
30
25
20
15
10
5
0
Time (hrs)0.9260.8230.7210.6180.5150.4120.3090.2060.1030
Flow: Link - C2 (Alternative system-swale instead of pipe)Flow: Link - C2 (Conventional system-pipe flow)
![Page 11: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/11.jpg)
Results
Catchment runoff v. rainfall duration and model setup
![Page 12: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/12.jpg)
Results Percentage of peak flow and runoff
volume decrease in comparison to conventional model
![Page 13: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/13.jpg)
Results
Pollution removal in alternative model
![Page 14: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/14.jpg)
Results
Cost analysis
Save 42,000€ or 26% cheaper
Construction work Cost [€] Construction site preparation 13.112,00
Earthworks 65.149,00 Concrete works 10.129,00 Masonry 6.685,00 Pipe purchase and installation 39.362,00
Other (additional) works 26.276,00
Σ 160.713,00
Construction work (conventional elements) Cost [€]
Construction site preparation 9.995,00 Earthworks 52.830,00 Concrete works 8.840,00 Masonry 4.934,00 Pipe purchase and installation 17.706,00 Other (additional) works 20.040,00 BMPs element Size Unit Cost
[€/units] Cost [€]
Detention pond (1+2) 166 m³ 12 1992
Swales 304 m² 8 2432 Σ 118.769,00
![Page 15: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/15.jpg)
Conclusions Impact of urbanization and design of conventional
drainage system enlarge catchment runoff for almost 5 times
With simple source control both peak runoff and runoff volume are decreased for cca 30%
Alternative system with included sustainable decreases peak runoff and runoff volume for cca 45%,
Pollution are removed for 8-30% Cost savings are 26% Reconstruction of conventional system is simple
with huge positive effects
![Page 16: Žana Topalović and Boris Jandrićhikom.grf.bg.ac.rs/stari-sajt/9UDM/Presentations/249_PPT.pdf · 2015. 1. 28. · Žana Topalović1 2and Boris Jandrić. 9th International Conference](https://reader033.vdocuments.us/reader033/viewer/2022060806/608ba02a7ed5aa119479035c/html5/thumbnails/16.jpg)
THANK YOU FOR YOUR ATTENTION
Contact: Žana Topalović
University of Banja Luka Faculty of Architecture and Civil Engineering Hydraulic department Mobile: +387 65 752 327 Phone: +387 51 462 616 Fax: +387 51 462 543 E-mail: [email protected]
Reconstruction of existing conventional storm drainage system in developing countries with inclusion of BMPs elements: Case study