Final Year Project Progress 02
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Transcript of Final Year Project Progress 02
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Supervised by:Dr. Ruwan Gallage
Dr. SrimalMr. T. Ranjan
DOMESTIC WATER PURIFIER
Group No 17
Wickramarathne G.T (EG/2012/2111)Thiviyanesan K. (EG/2012/2098)Thajivan S. (EG/2012/2090)
Progress Section-02
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Our Client…
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Fly Back to 1st Progress Section:
Water purification technologies
Proposed design
Next step
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Conceptual Design
Modifications• Heavy metal filter at last• More user friendly
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Ready for Testing..
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Fabrication
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Selecting Parameters
Chemical equations
Thermodynamic diagrams
Experimental results
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Source: Industrial waste water treatment book- Frank Woodard
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Selecting Electrodes
Ref: Bazrafshanet al. Journal of Environmental Health Science & Engineering (2015)
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Concentration Vs. Time
Removal of T race H eavy Metals from Drinking Water by ElectrocoagulationJoe Heffron-Marquette University
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Ceramic filter
Electrocoagulation treatment
Charcoal filter
UV treatment Post filter
Secrete of 5 Stage Filtering..
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CAD Design
Ceremic filter
Charcoal filter
Electrocoagulation chamber
Post filter
UV filterStorage tank
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Fabricated Model for Testing
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Ceramic Filter
Purify water from sand, mud and other suspended matters- sediments
Inexpensive and commonly available in market
Easy to use
Efficiency depends on the height water (container)
Automatically continuous feeding system of water to
The container with the aid of a mechanical floating valve
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Charcoal filterCan be purchased at low price
Removing chlorine, sediment, hexavalent volatile organic compound, order and taste
Efficiency of filter is based on flow rate
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Why electrocoagulation
No chemicals.Less sludge.Low initial cost.Easy maintenance.Less voltage requirement can be supplied.High effectiveness
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Electrocoagulation Reactor
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Not only a purifier…
Purifier• Decontamination• Remove smell and flavours• Remove of metal ions
including As, Cd, Pb, Ni, Cu and etc.
• Dechlorination• Remove colloidal particles
Water quality improver
• Water soften• Oxygen saturation• Reduce ORP ( Oxidation
Reduction Potential)• pH balanced• Reduce surface tension
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Factors affected for electrocoagulation
Wherem -mass liberated from the anode I -current (A) t -reaction time(s)M -molar mass (g/mol), =for Al, M=26.98 g/mol; Z -valence number=for Al, Z=3F -Faraday’s constant (C/mol)=(96,486 C/mol).
𝑚=𝐼 .𝑡 .𝑀𝑧 .𝐹
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Reactor for electrocoagulation
Control circuit
Solenoid
Inlet
outlet
electrodes
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UV- purifier
Uv filter
Uv bulb
Stainless steel
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THANK YOU…