flow data
DESCRIPTION
Flow Data. Sample data taken from Nov 3 to Nov 19. Inflow vs. outflow. Outflow consistently greater than inflow (for both sunny and rainy days with steady cell height) Instrument error or other unidentified input?. Recirculation. Abnormal F1. Surge. Normal F1. Problem of F1 reading. - PowerPoint PPT PresentationTRANSCRIPT
Flow Data
Inflow
W-3
M-1
ST-2 ST-1F-1
LS-3
LS-2FS
LS-1
M-2F-2
M-3
Wetland Cell(W-1)
Wetland Cell(W-2)
AS-1
AS
-4
AS
-2AS-3
F-3
Rec
ircul
atio
n
ACT-1
ACT-2
NNot to scale
LS-4(To city)
LS-2
Lift station/Dosing Chamber
Automatic Sampling Station
M-4
Flume Flow meter
Effluent
Magnetic Flow meter
Weather station
V notch weir Flow meter
Flow splitter
Inflow
W-3
M-1
ST-2 ST-1F-1
LS-3
LS-2FS
LS-1
M-2F-2
M-3
Wetland Cell(W-1)
Wetland Cell(W-2)
AS-1
AS
-4
AS
-2AS-3
F-3
Rec
ircul
atio
n
ACT-1
ACT-2
NNot to scale
LS-4(To city)
LS-2
Lift station/Dosing Chamber
Automatic Sampling Station
M-4
Flume Flow meter
Effluent
Magnetic Flow meter
Weather station
V notch weir Flow meter
Flow splitter
Inflow
W-3
M-1
ST-2 ST-1F-1
LS-3
LS-2FS
LS-1
M-2F-2
M-3
Wetland Cell(W-1)
Wetland Cell(W-2)
AS-1
AS
-4
AS
-2AS-3
F-3
Rec
ircul
atio
n
ACT-1
ACT-2
NNot to scale
LS-4(To city)
LS-2
Lift station/Dosing Chamber
Automatic Sampling Station
M-4
Flume Flow meter
Effluent
Magnetic Flow meter
Weather station
V notch weir Flow meter
Flow splitter
W-3
M-1
ST-2 ST-1F-1
LS-3
LS-2FS
LS-1
M-2F-2
M-3
Wetland Cell(W-1)
Wetland Cell(W-2)
AS-1
AS
-4
AS
-2AS-3
F-3
Rec
ircul
atio
n
ACT-1
ACT-2
NNot to scale
LS-4(To city)
LS-2
Lift station/Dosing Chamber
Automatic Sampling Station
M-4
Flume Flow meter
Effluent
Magnetic Flow meter
Weather station
V notch weir Flow meter
Flow splitter
Sample data taken from Nov 3 to Nov 19
Surge M-1 (Wetland) M-2 (Recirc) M-3 (Biofield) M-4 (Effluent)gallons/day gallons/day gallons/day gallons/day gallons/day
1516 12839 8444 164 5240
Flow #1 Flow #2 Flow #3 Tol Rain Cell #1 Cell #2gallons/day gallons/day gallons/day mm inch inch
58836 4868 3749 3.4 41.0 41.1
Inflow vs. outflow
Outflow consistently greater than inflow (for both sunny and rainy days with steady cell height)
Instrument error or other unidentified input?
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
1103 1106 1109 1112 1115 1118
Date
gall
ons
/ day
SurgeM-4 (Effluent)
0
5
10
15
20
25
1103 1106 1109 1112 1115 1118
Date
mm
/ da
y
Rainfall
0
5
10
15
20
25
30
35
40
45
1103 1106 1109 1112 1115 1118
Date
inch Cell #1
Cell #2
0
50000
100000
150000
200000
250000
300000
1103 1106 1109 1112 1115 1118
Date
gall
ons
/ day
SurgeFlow #1
Problem of F1 reading
0
20
40
60
80
100
16:00 17:00 18:00 19:00 20:00
Dis
char
ge (
gpm
) Surge
F1
M1
M2
F2
Normal F1
Abnormal F1Recirculation
Surge
Magnetic meters
0
10000
20000
30000
40000
50000
60000
1103 1106 1109 1112 1115 1118
Date
gall
ons
/ day M-1 (Wetland)
M-2 (Recirc)M-3 (Biofield)M-4 (Effluent)
From F2 to F3 to M4
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
1103 1106 1109 1112 1115 1118
Date
gall
ons
/ day
Flow #2Flow #3M-4 (Effluent)
M4 should be less than F2 and F3
Discharge From Water Softer Building to LS4
0
20
40
60
80
100
16:00 17:00 18:00 19:00 20:00
Disc
harg
e (g
pm)
Surge
F1
M1
M2
F2Normal F1
Abnormal F1Recirculation
Surge
F1 consistent with surge tank except during recycle. Backflow problem exists.
Expected Errors with open channel flow meters
Weir FlumesHead ft. Head in. GPM Error GPM Error
0.01 0.12 0.0022 567.27%0.02 0.24 0.0126 211.43% 0.5627 131.43%0.03 0.36 0.0348 126.21% 1.179 77.15%0.04 0.48 0.0714 89.58% 1.937 55.51%0.05 0.6 0.1247 69.29% 2.833 43.71%0.06 0.72 0.1967 56.43% 3.865 36.36%0.07 0.84 0.2892 47.55% 5.036 31.24%0.08 0.96 0.4038 41.07% 6.347 27.57%0.09 1.08 0.5420 36.18% 7.805 24.78%0.1 1.2 0.7054 9.417
0.34 4.08 15.0400 9.02%0.35 4.2 16.1700 8.68%0.36 4.32 17.3400 8.51%0.37 4.44 18.5700 8.27%0.38 4.56 19.8500 8.10%0.39 4.68 21.1900 7.82%0.4 4.8 22.5700 7.66%
0.41 4.92 24.0100
Greyline Accuracy0.25% F.S.= 12.0000 Ft. Repeatability0.10% Linearaity
W-3
M-1
ST-2 ST-1F-1
LS-3
LS-2FS
LS-1
M-2F-2
M-3
Wetland Cell(W-1)
Wetland Cell(W-2)
Biofield
AS-1AS
-4
AS
-2
AS-3
F-3R
ecirc
ulat
ionACT-1
ACT-2
NNot to scale
LS-4(To city)
LS-2
Lift station/Dosing Chamber
Automatic Sampling Station
M-4
Flume Flow meter
Effluent
Magnetic Flow meter
Weather station
V notch weir Flow meter
Flow splitter
Surge Tank
Sampling Points
% Removal AS-1 to AS-4 vs. Operational Days
0
10
20
30
40
50
60
70
80
90
100
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300
Days Since Planting, 8/12/2003
% R
em
ov
al
(AS
-1 -
AS
-4)
BOD TSS NH3 NH3 BOD TSS
Wetland Performance
Continuing sample analysis
Samples taken from Surge Tank in Oct. & Nov. Chlorine Test performed in October
Wetland Performance
AS1-AS4 Removal Last Year(9/28/05)
This Year(9/15/06)
TSS 82% 80%
BOD5 65% 67%
NH3-N 68% 57%
Chlorine Test Sample analyzed from AS-2 DPD Titrimetric test: positive results
Oxidizing agents (Chlorine or other products) may be present in waste stream Found in antibacterial soaps, cleaning supplies Possible cause for stress to plants
Wetland Performance
DPD Colorimetric test Can determine quantity of oxidizing agent
present To be done at more sampling points
Are septic tanks working properly? Biodegradation occuring, or Settling system, oxidants bypass DPD test will give insight
Upcoming Work