Recycling Treated Municipal Wastewater for Industrial Water Use

Cost Curves as Basis for Tertiary 4 - GAC*
Capital Cost
Design Flow Capital Cost
(mgd) ($)
0.0001 $36,117
0.007 $36,117
0.022 $53,091
0.037 $70,491
0.091 $137,932
0.18 $241,793
0.27 $340,528
0.36 $435,155
0.68 $739,387
1 $1,228,620
1.2 $1,551,122
2 $2,203,728
3.5 $3,275,153
7 $5,411,638
17 $10,411,502
22 $12,611,714
76 $31,503,622
210 $67,096,117
430 $114,813,572
520 $132,437,789
1,500.00 $324,345,925
Cost, $
Cost, $
$1,800,000
$1,600,000
$1,400,000
$1,200,000
$1,000,000
$800,000
$600,000
$400,000
$200,000
y = 334592x 2 + 826982x + 66833
R 2 = 0.9978
Curve fit equations
CCI Index 1.16
Avg Flow Range 0.037-0.35 mgd >0.35-30 mgd
Design Flow Range 0.037-1.2 mgd >1.2-60 mgd
Design/Avg Flow Ratio 2
Note: Based on GAC reactivation frequency of 90 days (GAC-20 designation in EPA, 2005).
$0
$35,000,000
$30,000,000
$25,000,000
$20,000,000
$15,000,000
$10,000,000
$5,000,000
$0
0 0.2 0.4 0.6 0.8 1 1.2 1.4
Flow, mgd
y = -2423.81x 2 + 583824.08x + 1123641.87
R 2 = 1.00
0 10 20 30 40
Flow, mgd
50 60 70 80
*Source: Environmental Protection Agency (EPA), 2005. Technologies and Costs Document for the Final Long
Term 2 Enhanced Surface Water Treatment Rule and Final Stage 2 Disinfectants and Disinfection Byproducts
Rule. December. EPA 815-R-05-013.
Trace Const Removal Technologies.xls, Summ-GAC20 Page 1 of 2 5/4/2007