Basic HTML Version
MERC ER02-10
11
Disinfection By-Products
(
µg/l)
Control
Treated
BW
Treated
RDL/MRL
T0
T0
T0
TF
Trihalomethanes
0
106.6
ND
227.8
0.5
Trichloromethane
< 0.5
< 0.5
ND
< 0.5
0.5
Bromodichloromethane
< 0.5
1.6
ND
2.5
0.5
Dibromochloromethane
< 0.5
13.5
ND
24.3
0.5
Tribromomethane
< 0.5
91.5
ND
201
0.5
Haloacetic Acids
1.4
62.9
ND
385.6
1.0
Monochloroacetic acid
< 2.0
< 2.0
ND
< 2.0
2.0
Dichloroacetic acid
< 1.0
< 1.0
ND
< 1.0
1.0
Trichloroacetic acid
< 1.0
< 1.0
ND
< 1.0
1.0
Bromochloroacetic acid
< 1.0
3.3
ND
< 1.0
1.0
Monobromoacetic acid
< 1.0
3.1
ND
1
1.0
Dibromoacetic acid
< 1.0
53
ND
10.6
1.0
Tribromoacetic acid
1.4
3.5
ND
374
1.0
Other
ND
Sodium chlorate
< 10
250
ND
250
10
Sodium bromate
< 50.0
< 50.0
ND
< 50.0
50.0
Monochloroacetonitrile
<0.5
<0.5
ND
<0.5
Dichloroacetonitrile
<0.5
0.86
ND
<0.5
0.5
Monobromoacetonitrile
<0.5
<0.5
ND
<0.5
Dibromoacetonitrile
<0.5
24
ND
4.4
0.5
BW = backwash
RDL = reporting detection limit
MRL = method reporting limit
6.3. Trial 3 (SIE-06-10): 20-25 May 2010
Presented as means and standard deviations.
Physical Parameters
TSS
mg/l
DOC
mg/l
POC
mg/l
T0 Ambient
19.7 (3.6)
2.96 (0.00)
1.28 (0.01)
T0 Enhanced
56.2 (13.5)
NA
4.76 (0.92)
Enhanced data is the average of 3 time points (2 reps per time point) during the fill time of the ballast tanks.
Ambient water is sampled at the beginning of the trial and before the water is enhanced.
Temp
o
C
Salinity
psu
Dis. Oxygen
mg/l
Turbidity
NTU
pH
T-0 Control
15.14 (0.02)
9.80 (0.02)
6.47 (0.39)
15.68 (1.30)
7.1 (0.1)
T-0 Treated
15.18 (0.00)
10.35 (0.00)
7.91 (0.01)
14.95 (1.01)
7.0 (0.1)
T-F Control
19.83 (0.01)
9.75 (0.00)
4.82 (0.02)
3.06 (0.10)
7.1 (0.1)
T-F Treated
19.97 (0.01)
10.37 (0.00)
7.55 (0.01)
6.61 (0.09)
7.0 (0.1)