Encyclopedia of Environmental Science and Engineering, Volume I and II

URBAN RUNOFF 1207

FIGURE 16 High-intensity mixing/chlorine contact basin cost: ENR 


5,000 (EPA-600/2–76–286).

2

2

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3

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4

5

5

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6

7

7

8

100

1, 000

1 10 10

CONSTRUCTION COST, $1, 000

VOLUME, 1, 000 CUBIC FEET

Q-Velocity Gradient

Q = 200HR–1

Q = 100HR–1

100 1 000 10 000

2

2

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9

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89

23456789

10

100

1 000

DESIGN FEED RATE, 1h/d

CONSTRUCTION COST, $1 000

HYPOCHLORITE GENERATION

AND FEED COSTS

CHLORINE DIOXIDE

GENERATION AND

FEED COSTS

CHLORINE GAS

FEED COST

FIGURE 15 Chlorine disinfection feed facilities cost curves:

ENR 
 2,000.

C021_002_r03.indd 1207C021_002_r03.indd 1207 11/23/2005 9:45:50 AM11/23/2005 9: