Download - Brackish Stream Treatment Plan
Brackish Stream Treatment Plan
Possum Engineering:Josh Ogle
Meg PrzybylaKyle Smith
Alex Stodtmeister
12 April 2013
Problem
• Brackish Stream running backyard
• Desire to “go green” and make use of stream
• Possum Engineering chosen to explore the option and choose the most viable option
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Field Work
• GPS Mapping of Dr. Chandler’s Property
• Water Quality Analysis
• Water Capacity Analysis
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Field Work - GPS Mapping
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Results - GPS Mapping
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Field Work - Water Quality Analysis
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Field Work - Water Quality Analysis
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• On-site analysis with water quality sondes– Dissolved oxygen, specific conductivity,
temperature, pH, chlorophyll• Samples taken for further testing at BYU– Total solids, total suspended & volatile solids– Chemical oxygen demand– Metal concentrations
Results – On-site Analysis
LocationTemp
[°F]
pH
[Units]
SpCond
[µS/cm]
Sal
[ppt]
TDS
[g/l]
LDO%
[Sat]
LDO
[mg/l]
Chlorophyll
[µg/l]
Mouth 60.09 8.86 4057 2.21 2.6 105.7 8.61 0.36
Throat 58.6 8.90 4060 2.21 2.6 106.0 8.79 0.35
SD 61.1 8.84 4053 2.21 2.6 106.8 8.61 0.36
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Results – Solids and COD
LocationTotal Solids
[mg/L]Total Suspended Solids [mg/L]
Total Volatile Solids
[mg/L]
COD
[mg/L]
Mouth 3904.1 2.64 1.025 4.3
Throat 3870.4 2.65 0.395 4.6
SD 4645.6 3.25 0.44 3.6
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Results - ICP
IonMouth
[ppm]
Throat
[ppm]SD [ppm]
Ca 653.80 746.90 672.30
K 86.55 75.36 65.67
Mg 180.80 181.80 158.90
Na 132.70 139.00 114.60
S 470.90 523.80 449.20
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Results – Water Chemistry
Mineral log IAP Sat. indexAragonite -6.479 1.803Artinite 8.082 -2.21Brucite 14.879 -2.877
CaCO3xH2O(s) -6.479 0.61Calcite -6.479 1.954CaS(s) -9.61 -20.79
Dolomite (disordered) -13.276 2.997Dolomite (ordered) -13.276 3.587
Epsomite -5.046 -2.853Gypsum -4.728 -0.112
Halite -4.142 -5.671Huntite -26.87 2.478
Hydromagnesite -12.309 -4.8KCl(s) -4.558 -5.458Lime 15.197 -18.618
Mineral log IAP Sat. indexMagnesite -6.797 0.778
Mg(OH)2 (active) 14.879 -3.915Mg2(OH)3Cl:4H2O(s) 19.207 -6.793
MgCO3:5H2O(s) -6.797 -2.257MgS(s) -9.928 -27.608
Mirabilite -7.107 -5.536Natron -8.858 -7.168
Nesquehonite -6.797 -2.266Periclase 14.879 -7.575
Portlandite 15.197 -8.247Sulfur -11.135 -9.084
Thenardite -7.107 -7.481Thermonatrite -8.858 -9.555
Vaterite -6.479 1.361
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Slingshot Option
• 264.2 gallons of water/day
Cost - $100,000
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Heat Exchange Option
Cost - $20,000ROI - $1,200/year(Cutting Power Bill by 42-50%)
• 15,000 linear feet of pipe lay coiled 10 feet underground in horizontal slinky loop
• Paxman Heating installed Dr. Astle’s system
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Water Purification Option
Total Cost ≈ $15,500ROI ≈ $420/year
(If 50% of monthly water use provided by RO System)
COST ≈ $500
COST ≈ $14,250
COST ≈ $250
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Legal Constraints• After receiving all
Water Users' Claims, the State Engineer then prepares a proposed determination of water rights of all water users in the drainage or sub-drainage that is served on water users and filed in court
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Final Recommendation • Ground Heat Exchange System
Benefits:• Cut Power Bill in half
Investment Cost:• $20,000
Return on Investment:• $1,200 per year• Pay for itself in 16 years
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Acknowledgements• Dr. Mike Chandler• Dr. Gus Williams• Dr. Jim Nelson• Dr. Wood Miller• Dr. Craig Astle• Craig Hammer• Paxman Heating• Jay Sandberg, P.E.• Phil Stewart• Zola Adjei