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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.

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Presentation Transcript
flow data
Flow Data
  • Sample data taken from Nov 3 to Nov 19
inflow vs outflow
Inflow vs. outflow
  • Outflow consistently greater than inflow (for both sunny and rainy days with steady cell height)
  • Instrument error or other unidentified input?
problem of f1 reading
Recirculation

Abnormal F1

Surge

Normal F1

Problem of F1 reading
from f2 to f3 to m4
From F2 to F3 to M4
  • M4 should be less than F2 and F3
slide7
Recirculation

Abnormal F1

Surge

Normal F1

F1 consistent with surge tank except during recycle. Backflow problem exists.

slide9
Sampling Points

Effluent

LS-4

M-4

ST-1

ST-2

(To city)

AS-2

LS-1

F-1

AS-1

M-1

AS-4

LS-3

F-3

ACT-1

M-3

W-3

Wetland Cell

(W-1)

Wetland Cell

(W-2)

Recirculation

Biofield

ACT-2

LS-2

LS-2

M-2

F-2

FS

N

Not to scale

AS-3

Weather station

Lift station/Dosing Chamber

V notch weir Flow meter

Flume Flow meter

Automatic Sampling Station

Magnetic Flow meter

Flow splitter

Surge Tank

slide11
Wetland Performance
  • Continuing sample analysis
  • Samples taken from Surge Tank in Oct. & Nov.
  • Chlorine Test performed in October
slide12
Wetland Performance
  • 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
slide13
Upcoming Work
  • 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
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