gc scholars - final presentation event - 2014 08 22...microsoft powerpoint - gc scholars - final...
TRANSCRIPT
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MEHDI BAGHERI ENGINEERING - WATERWORKS
Predicting the internal corrosion in cast iron drinking water mains.
29
CLEA
N W
ATER
Time
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• Source waters from all three watersheds serving the lower mainland are naturally corrosive.
• Focus of research study was to look at the chemical & physical parameters affecting the corrosion rate of water mains in the City, specifically cast iron.
30
DRINKING WATER GOAL
Corrosive waterNon-Corrosive water
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1. Developing predictive models to assess the waterpotential for corrosion and iron concentration level
2. Providing a visual user-friendly computational tool toconsistently monitor the water corrosivity with minimuminput requirement
31
MAIN DELIVERABLES
The City can integrate these deliverables to prioritize proactive actions in drinking water mains
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32
MODELING SOFTWARE – WATER CORROSION ANALYZER
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33
SAMPLE ANALYSIS RESULTS
2869W (KE)
408E (34th)
23
33
69
7669
8165
33
70
76
30
27
34
44
75
69
76
27
3622
28
34
35
40
82 48
31
74
39
24
73
26
76
84
89
88
70
38
26
25
69
7968
71
7374
90
2427
30
127
104
Corrosivity study of the water
City of Vancouver
Exp. Iron Level (ppb)
Ryznar Corrosivity index (round 2)Prediction Map
Water pressure zones
1
10
50
100
(Capilano + Seymour + Coquitlam)
12.7 – 13.1
13.1 – 13.6
13.6 – 14.1
14.1 – 14.6
14.6 – 15