Table III
Summary of Projected Cost Estimate for Nickel Recovery by R.O. ('Closed Loop') System
Toronto Installation:
D= 15 gal/day:
W= 150 gal/day
Projected Scale:
D= 50 gal/day:
W = 500 gal/day
Projected Scale:
D = 500 gal/day:
W = 5000 gal/day
Flux Rate (gfd) at 450 psi
10.7
Permeation Rate (gal/day)
1,065
Nominal R.O. Unit Capacity (gal/day)
1,000
installed Capital Cost ($)
7,000
Amortized Capital Cost/1000 gal permeate
$6.96
*Operating & Maintenance Cost/1000 gal permeate
$0.70
Total Cost/1000 gal permeate
$7.66
Total Cost/day
$8.15
Recovered Value/day Ni
$9.46
Recovered Value/day as Total Salts
$ 16.62
Savings in Deionized Water Usage/day
$0.49
Total Savings as (Total Salts + Water)/day
$17.11
Net Savings/day
$8.96
10.7
3,550
3,500
9,000
$2.68
$3.40
$6.08
$21.60
$31.50
$55.30
$1.65
$56.95
$35.35
10.7
35,500
35,000
37,000
$1.03
$2.05
$3.08
$109.30
$315.00
$553.00
$16.50
$569.50
$460.20
Payback on Capital Investment
39 months
13 months
4 months
^Capital and Maintenance Costs can vary widely depending on the design of the unit.
Economic Plating Waste Treatment by Reverse Osmosis