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MERC ER01-12
11
7. Results Trial 2 (Hyde-02, 40
µ
m screen filter + 8 UV lamps): April 30 – May 3, 2012
Water quality
conditions of control and treated water during the three-day hold time.
Control Tank
Mean
SD
Max
Min
Temperature (°C)
14.9
0.37
15.3
14.4
Salinity (psu)
9.8
0.01
9.8
9.8
DO (mg/l)
7.7
1.87
11.1
4.8
pH*
N/A
N/A
N/A
N/A
Turbidity (NTU)
6.3
2.46
15.4
2.3
Treated Tank
Mean
SD
Max
Min
Temperature (°C)
15.0
0.35
15.4
14.5
Salinity (psu)
9.9
0.0
9.9
9.9
DO (mg/l)
8.4
1.65
11.2
6.0
pH
8.0
0.25
8.4
7.6
Turbidity (NTU)
5.2
1.60
9.9
2.9
*
instrument failure
Total Suspended Solids
(TSS) content of challenge water during uptake. Ambient describes
natural conditions of water in the Port of Baltimore and PT-1, PT-2, and PT-3 are results from
three sample time points (beginning, middle, and end of uptake) after the mixture of Arizona
Test Dust, micronized humate and instant
ice tea was added to the uptake water prior to the split
in control and treated lines.
Mean (mg/l)
SD
Ambient
21.0
0.5
PT-1
45.3
1.67
PT-2
44.4
0.35
PT-3
41.9
1.21
Dissolved Organic Carbon
(DOC) content of challenge water during uptake. Ambient describes
natural conditions of water in the Port of Baltimore. Control and treated show levels in test
waters from time-integrated samples collected through the entire uptake, after the mixture of
Arizona Test Dust, micronized humate and instant
ice tea was added to water prior to the split in
control and treated lines.
Mean (mg/l)
SD
Ambient
3.9
0.20
Control
6.8
0.14
Treated
6.5
0.27