Using A Wireless Sensor Network to Monitor Fenton’s Reaction (midterm)
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Using A Wireless Sensor Network to Monitor Fenton’s Reaction (midterm)

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Using A Wireless Sensor Network to Monitor Fenton’s Reaction (midterm) Using A Wireless Sensor Network to Monitor Fenton’s Reaction (midterm) Presentation Transcript

  • Using A Wireless Sensor Network to monitor Fenton!s Reaction for Water Purification Mid Term Presentation Yuen, Wan-Choi Rainbow Supervisor: Dr. Kim Lau
  • Overview of My project ! Topic: quot; Monitoring Fenton!s reaction by using a wireless sensor network ! Color of the solution changes from dark to clear ! Application: quot; In-house Water purification system
  • Fenton!s Reaction ! Chemicals used: ! Ferric Sulfate Heptahydrate (Catalyst) – Fe2SO4 +7H2O ! Hydrogen Peroxide (Reactant) – H2O2 ! Aniline Blue (Dye – Pollutant) ! pH value should be around 3-4 to keep the reaction work ! Fe2+ + H2O2 # Fe(OH)3 ! Reaction equation: ! Fe2+ + H2O2 # Fe3+ .OH + OH- ! Fe3+ + H2O2 # Fe2+ + OOH_ + H+ quot; Fe2+ is the catalyst, Fe3+ can be used as the catalyst too, therefore, no need to add extra Ferric Sulfate in 2nd run quot; .OH (Hydroxyl Radical) is the chemical which oxidizes any Pollutants in water
  • Experimental equipment set-up:
  • How the sensor senses the light? How the Internal sensor senses the light How the external sensor senses the light? !part LED Fluid Sitting Channel Lamp External (upper) External (Lower) Beaker
  • Process Processing Before After
  • Result - µPart analysis Ferric Sulfate Hydrogen chemical Aniline Blue (g) Heptaoxide (g) peroxide (g) Date 0.02 0.51 0.03 21 Jun 07 (1st run) - 0.3 0.06 21 Jun 07 (2nd run)
  • Work in progress •Using solidwork to draw the box •Using 3D printer to make the box •Using milling machine to mill the Amount of chemical adjustment (optimizing) hold in fluid channel Ferric Sulfate Hydrogen Aniline Blue (g) Heptahydrate (g) peroxide (g) 0.01 0.26 0.05
  • Future Work ! Investigate issues with a larger sensor network quot; Implement 7 sensor nodes quot; Radio interference quot; Node range (< 30m in-house) ! Apply to larger sample (fish tank) ! Transfer of the sensor network from the lab to real-life applications
  • Project Set Up Experiment Procedure Optimize Adjust Suitable Collaboration of the chemicals Environment equipment used Adding more sensors Adjust the sensor network to work Corporately Apply the process into the real life
  • Experiment Procedure B A Start Add Aniline blue (Dye) and Place the sensor Weigh out start holder and check appropriate monitoring the LED light is amount of on chemicals Add Ferric Sulfate Check that the Place the water Heptahydrate base station pump inside receives signals Beaker from all sensor Keep monitoring for at least 30 Fill in 1500ml Place the minutes water camera on appropriate location and Add Hydrogen Adjust pH value check that the Peroxide to “3” base station receives image Install upart Keep sensor nodes to monitoring the Switch on the appropriate color change sitting Lamp locations End B A