Electrocoagulation Lab Results:
Generator Rebuilding Facility
Contaminant |
Raw |
Treated |
Removal Efficiency |
Total Dissolved Solids |
1,300 mg/L |
620 mg/L |
52.3% |
Total Suspended Solids |
36 mg/L |
<5 mg/L |
>86.1% |
Oil & Grease |
78 mg/L |
2.7 mg/L |
96.5% |
TPH (Hydrocarbons) |
30 mg/L |
<1 mg/L |
>96.6% |
MBAS (Surfactants) |
1.3 mg/L |
0.062 mg/L |
95.2% |
Copper |
4.1 mg/L |
0.017 mg/L |
99.5% |
Lead |
0.471 mg/L |
<0.00375 mg/L |
>99.29% |
Nickel |
0.013 mg/L |
.005 mg/L |
96.3% |
Zinc |
5.75 mg/L |
0.084 mg/L |
98.5% |
Wood Preserving Facility
Contaminant |
Raw |
Treated |
Removal Efficiency |
Arsenic |
0.120 mg/L |
0.015 mg/L |
87.5% |
Chrome |
0.326 mg/L |
0.080 mg/L |
76.8% |
Hex Chrome |
0.165 mg/L |
0.039 mg/L |
76.5% |
Copper |
0.308 mg/L |
0.073 mg/L |
76.2% |
Metal Finishing
Contaminant |
Raw |
Treated |
Removal Efficiency |
TSS |
22,700 mg/L |
149 mg/L |
99.3% |
Zinc |
12,800 mg/L |
20.7 mg/L |
99.8% |
Copper |
15.1 mg/L |
0.03 mg/L |
99.8% |
Iron |
197 mg/L |
3.13 mg/L |
98.4% |
Lead |
2.97 mg/L |
0.0005 mg/L |
99.9% |
Shipyard Hull Wash Water
Contaminant |
Raw |
Treated |
Removal Efficiency |
Zinc |
8.14 mg/L |
0.107 mg/L |
98.6% |
Copper |
6.78 mg/L |
0.0661 mg/L |
99% |
Lead |
0.151 mg/L |
<0.001 mg/L |
>99.3% |
Nickel |
0.0530 mg/L |
0.00357 mg/L |
93.2% |
Marine Dry Dock Runoff
Contaminant |
Raw |
Treated |
Removal Efficiency |
TSS |
1071 mg/L |
23 mg/L |
97.9% |
Copper |
170 mg/L |
0.12 mg/L |
99.9% |
Zinc |
151 mg/L |
0.34 mg/L |
99.8% |
Metals Removal Performance Data (ND= Non-Detect)
Marine Stormwater Runoff
Contaminant |
Before EC |
After EC |
Percent Removal |
Copper |
661 ppb |
24.9 ppb |
96.2% |
Zinc |
380 ppb |
ND <2 ppb |
>99.5% |
TSS |
16 ppm |
ND <2 ppm |
>87.5% |
HEM Oil & Grease |
ND <1.4 |
Not Tested |
N/A |
Wire Pulling (Manufacturing) Operation
Contaminant |
Raw |
Treated |
Removal Efficiency |
Copper |
0.549 mg/L |
0.00525 mg/L |
99% |
Iron |
598 mg/L |
<1 mg/L |
>99.8% |
Nickel |
2.55 mg/L |
0.0109 mg/L |
99.5% |
Zinc |
107 mg/L |
0.00512 mg/L |
99.9% |
Galvanizing Operation
Contaminant |
Raw |
Treated |
Removal Efficiency |
Zinc |
32.9 mg/L |
0.412 mg/L |
98.7% |
