17
9.
Results Trial 4: August 16 – 21, 2012
(150
m
3
/
hr, two UV reactors, and ambient challenge
conditions)
Water quality
conditions of control and treated water during the five-day hold time.
Control Tank
Mean
SD
Max
Min
Temperature (°C)
26.9
0.96
28.2
25.0
Salinity (psu)
9.8
0.02
9.9
9.8
DO (mg/l)
2.8
0.84
5.1
1.9
Turbidity (NTU)
0.4
0.84
2.6
-0.5
Treated Tank
Mean
SD
Max
Min
Temperature (°C)
27.1
0.97
28.5
25.2
Salinity (psu)
9.8
0.01
9.9
9.8
DO (mg/l)
3.9
0.46
5.2
3.4
Turbidity (NTU)
-0.1
1.01
2.5
BDL
BDL = below detection limits
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). No Arizona Test Dust,
micronized humate and instant
ice tea was added to the uptake water.
Mean (mg/l)
SD
Ambient
N/A
N/A
PT-1
6.2
0.30
PT-2
4.5
0.51
PT-3
5.8
0.50
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. No Arizona Test Dust,
micronized humate and instant
ice tea was added to the uptake water.
Mean (mg/l)
SD
Ambient
N/A
N/A
Control
4.0
0.27
Treated
4.5
0.62