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Project presentation final_2

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by

Bassem Younes

on 27 June 2014

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Transcript of Project presentation final_2

Car Wash Waste Water Treatment
Using Electrocoagulation Technology

Thank you
1- Ahmed Mahmoud Ahmed Abd El-Hamid 852
2- Bassem El-Sayed Ahmed Younes 899
3- Lamees Mohammed Al-Husseini 1052
4- Maher Ahmed Maher El-Naggar 1069
5- Haya Hussein Hassan 1269

SUPERVISED BY PROF.DR/ EL-SAYED ZAKARIA EL-ASHTOUKHY
GAS & PETROCHEMICAL DEPARTMENT
Electrocoagulation
Waste Water
Treatment

China
USA
..Egypt is listed among the ten countries that are threatened by want of water by the year 2025 due to the rapidly increasing population..
Coming global water crisis can be averted ?
Treatment
Waste
Water
Reuse
Chemical Coagulation Mechanism
Disadvantages
Sludge
..How it works..
Water
Pollution
Minor
-
Major
- Industrial
- Agricultural
- Domestic use
- Car Wash
- Laundromat
Car Wash Management
Zero discharge
Discharges to a municipal wastewater system
Discharges to the ground
Solids
- Suspended Solids
- Settle-able Solids
- Floating Solids
Petroleum
Hydrocarbons
- Oils
- Greases
- Diesel
- Motor Oil
Biological
- Bacteria
- Micro organisms
Surfactants
- Detergents
- Surface active agents
Dissolved Compounds
- Nitrogen
- Phosphorous Compounds
Waste Water
Testing Methods
- COD
- BOD
Emulsion
Types of emulsion
How it breaks
Chemical Treatment
- Chlorination
- Neutralization
- Chemical Coagulation
Anodic & Cathodic Reactions
Al(s) Al(+3) (aq) + 3e-
Aluminum anode electrodes:
Aluminum cathode electrodes:
3 H2O(l)+3e-−→ 3/2 H2(g) + 3OH−(-)
Al(+3) + 3OH(-) Al(OH)3 (s)
2 H2O(l) → 4H+(aq)+ O2(g) + 4e−
How it happens
Seeding
Emulsion breaking
Halogen
Complexing
Bleaching
Waste Water Treatment
dates back to ancient times
Water is life
Bubbles generation and Electroflotation
Treats wide range of pollutants
Excellent results
Quick
No Chemicals Added
Fewer Sludge
No Moving Parts
Less Maintenance
Advantages
pH
Current
density
Conductivity
Electrode
Material
Factors
"Time"
Flow rate
Experimental procedures and results
Current Density
Conductivity
pH
Temperature
Electrode Material
Higher removal efficiency.
Higher bubble density (air floatation).
Higher removal efficiency.
Reduce electrode passivation
Optimum pH in the range [6.5-7.5]
Higher temperature, higher conductivity..
High temperature enhances the oxide layer destruction, but also enhances flocs deposition on electrodes.
Aluminum Vs. Iron Electrodes
Aluminum electrodes have higher removal efficiency
Full transcript