I made two electrocoagulation (EC). The first was to evalute if the equipment of DC power supply is working well, for this step I used congenic water (solution with a lot of dissolved salts) and it was degraded at 5 volts, a current density of 0.1, distance between electrodes of 2 cm in electrodes of Aluminum and pH above neutrality. The second treatment I used my soft drinks experimental unit, in this case I want to reduce COD and others parameters, however, at 10 volt the current density reduced to 0.003 in a distance between electrodes of 2 cm with electrodes of Aluminum but at 2.53 pH.
The result of the treatment of both cases is ilustrate in the images below. Soft drink EC (black solution) and congenic water (yellow solution)
I think soft drink EC it's not effective at pH 2.8 but I would like to receive some recomendations for improve this technique for get my goal like increase the area of electrodes, reduce voltage, change pH.
Dear Alejandro, unfortunately I'm not a specialist in this field (we are synthetic inorganic chemists) so that I cannot give you a qualified answer. All I can do right now is suggest to you some potentially useful literature references. In this context please have a look at the following articles:
Soft drink wastewater treatment by electrocoagulation-electrooxidation processes
Article Soft drink wastewater treatment by electrocoagulation-electr...
This paper has not yet been posted as public full text on RG. However, all authors of this study have RG profiles. Thus you can easily contact one of them via RG and request the full text. Most authors respond quite rapidly to such full text requests.
The following article has been published Open Access and is freely accessible as public full ext on RG::
Application of Electrocoagulation Methods to Reduce BOD and COD Content in The Soft Drink Industry's Wastewater with Addition Bittern
Article Application of Electrocoagulation Methods to Reduce BOD and ...
I hope this helps. Good luck with your work and best wishes!
Alejandro...... The question must be more specified... The electrocoagulation is more dedicated for wastewater treatment and not for the evaluation of production process nor to the quality control of the soft drink products.
The optimum conditions, which gave higher percent removal were pH= 8, current density 43.4 A/m2, you can read Preprint Kinetics, thermodynamics, isotherm modeling for removal of r...
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