TIES: Lakeside Environmental Monitoring

1
TIES Lakeside Environmental Monitoring

• Summer 2005 Intern Final Presentation
• Water Quality Fabiola Hatley
• Prototype Development Stephen Bak
• September 2nd, 2005

2
Water Quality Testing
3
Summer Closure

• Testing period July 2ND-August 27
• Thirteen visits total
• Plenty of data gathered Over 35 informative
  graphs derived
• Labeling error Site 3 is really 4, and 3a is
  4a
• Water level monitoring incorporated in site 5
  (home of prototype)
• As of 8/27/05
• H2O drop 17
• H2O depth 27

4
Data Sample-TDS/EC

• TDS/EC theoretical relationship EC micro
  s 1.6 (TDS mg/L)
• Positive slope on both as a function of time
• All, except site 5, have surpassed the TDS 600
  ppm standard
• So, whats the experimental relation?

5
Data Sample-TDS/EC

• Good!
• Theoretical slope
• 1.6 micro s/ ppm
• Experimental slope
• 1.68 micro s/ ppm
• Experimental error (1.68-1.6)/1.6 5

6
Data Samples- Nitrates and Phosphates

• Changes in NO3- PO42- concentrations varied
  from site to site
• Negative and positive slopes encountered
• Averages were graphed for both
• High Risk Areas
• High NO3- (0.2-10 mg/L)
• none
• High PO42- (0.005-0.2 mg/L)
• All sites!

Water Quality in Freshwater Aquaculture Ponds
7
Data sample-Phosphates
Water is well beyond the recommended phosphate
concentration
8
Algae Blooms
Layer of organic debris in Site 1
Figure 10a shows the scum of organic debris and
some algae near Nyngan (Simon Mitrovic).
http//www.dlwc.nsw.gov.au/care/wetlands/facts/paa
/algae/Causes
9
Data Sample- DO

• Consistent trend line for Dissolved Oxygen
  results
• But, how accurate is it?
• Error Analysis? Need data from a different
  source to make comparison

10
Future Plans

• Will resume testing in the fall with new members
• If a prototype is built, will come together with
  the students of other disciplines
• Will compare data retrieved from prototype with
  that collected during the summer

11
Prototype Development
12
Hardware - End of Spring 2005 Status

• SIO datalogger selected by Spring Team
• Innovative, good learning experience
• Problem Development time
• 1 month full-time for professional engineer
• Global Water Instrumentation sensors recommended
• Prototype placement location selected

13
Reconsidering a Datalogger

• New Leaf Technology
• Former TIES project leaders, Yan Zheng and Puneet
  Khattar
• Not yet a solid business
• Re-examined National Instruments
• High price value
• Offering free prototype

14
National Instruments System Overview

• FieldPoint (FP-2000)

• -16 MB onboard DRAM
• -32 MB nonvolatile storage
• Embedded controller runs on LabVIEW
• Built in web server
• Ethernet or Serial port access
• Backup power supply
• Power supply range 11-30 volts

Fig. A
15
NI System Overview (cont.)

• FP-AI-110 Analog Input
• 8 input channels, current or voltage readings
• FP-DO-DC Digital Output
• Possible uses alarm system, future devices
• Terminal Bases (FP-TP-1 and 10)
• Connects I/O modules
• to the FieldPoint
• Total Power
• Consumption less than
• 15 watts

Fig. B FieldPoint with Terminal Bases
16
NI Package Value

• SRM 6000 Wireless Serial Radio Modems
• May not be donated
• Wireless ethernet modem is cheaper (3500 vs.
  900)
• Retail Value 4733 (without DO-DC 4298)
• Academic discount 3140 (w/out DO-DC 2749)
• First Prototype Cost 0 !!!!

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Sensors Global Water Instrumentation

• Good reputation
• Widely used and sold
• Omni Control Systems discount prices
• Strong materials
• Stainless steel enclosures
• Marine grade cables

Fig. C WQ 101 Temperature Sensor
18
Sensors Automata, Inc.

• Pros
• Significantly cheaper
• Average 200 cheaper
• Except for dissolved oxygen, 900 more
• Slightly less power consumption
• Cons
• Less rugged than GWI
• Cheaper Materials PVC and Poly-Urethane

Fig. D EC-Watch
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Problem 1 PVC and PU

• Polyvinyl Chloride
• Known to release dioxin and other toxins when
  produced and destroyed
• However virtually everywhere in society
• Phthalates makes PVC flexible
• Chemical nature causes it to leech out of PVC
• No scientific proof of any harm
• Polyurethane
• Less vindictive reports
• Nonetheless, releases toxins when produced and
  destroyed

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Fig. E - GWI and Automata Comparison
GWI and Automata Combination Scenario 1783.80
21
Global Water Instrumentation Selected

• Overall, not that large of a price difference
• Go with one company for prototype
• More green-friendly

22
Problem 2 Water Level (Fig. F)

• Water level is decreasing as summer progresses
• GWIs pH and DO sensors can be damaged from
  dryness.

Used buoy device
23
Fig. G - Making your own depth measuring device
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Fig H. Depth Change According to Bridge Walls
8/27/05
Approx. 1 7
25
Water Level Possible Solutions

• Option 1 original sensor choices
• Program an alarm system into the fieldpoint
• Pop-up/flashing light alarm on user interface
• Server sends email to caretaker
• Problems
• Requires someone to be on call 7 days a week
• Possible risk of damage to sensors

26
Water Level Possible Solutions (cont.)

• Option 2 Industrial Level Sensors
• WQ 215 (pH) and WQ 415 (DO) from GWI
• Glass membranes will not damage
• However
• Cost increases 450
• Longer than WQ 201 and 401
• breaks water surface earlier
• Depending on water quality, can leave film,
  affecting accuracy
• Regular maintenance will solve this problem

Fig. H WQ 215
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Miscellaneous Tasks

• LabVIEW training
• Webmaster, HTML experience
• Consulted engineers/researchers associated with
  other implemented systems
• Design of Water Quality Monitoring Systems (Ward,
  et. al.)

28
Fall Quarter Tasks

• Hardware
• Program Fieldpoint, LabVIEW training
• Solar Panel and Wireless modem research
• Sensor Callibration/Maintinence Team
• Colloboration with placement
• Placement
• Design conduit paths
• Enclosure research/design
• Water Quality
• Continue manual testing
• Collaboration with sensor maintenance

29
Long Term Goals

• System Deployment
• One day tests (end of fall quarter, early
  winter?)
• Full system deployment (Winter or Spring 2006)
• User-interface
• A usable interface for Lakeside
• Web-interface, readable for the layperson

30
Acknowledgments

• Silvia Mah
• Jorge Noguera, National Instruments
• Zachary Nelson, National Instruments
• Robert Goulden, Global Water Instrumentation
• Robin Rierdan and Lakesides River Park
  Conservancy
• Srinivas Sukumar
• Lew Lipton
• Jeanne Ferrante

31
Questions
Thank You, TIES.