Discipline: Chemistry and Chemical Sciences
Subcategory: Chemical/Bimolecular/Process Engineering
Room: Park Tower 8219
Samentha Dumervil - Howard University
Co-Author(s): Babacar Faye, University Cheikh Anta Diop, Dakar, Senegal
Bleach (or Eau De Javel in Senegal) is an aqueous, alkaline solution of sodium hypochlorite and sodium chloride. In Senegal, its concentration is indicated in chlorometric degree (° chl) or in “active chlorine” content (% ca). Bleach is a very in-demand industrial product thanks to its various uses. The uses of water and bleach extracts are numerous because of the stain whitening, disinfecting and deodorizing nature of this product. The general objective of this study was to design a continuous chlorine bleach electrochemical reactor that produces a concentration of at least five degrees (5 °) chlorometric. This device can offer a natural alternative to generation of sodium hypochlorite and invite citizens an alternative to constantly purchasing bleach. This device can also be set up in a neighborhood as the source of cleaning products for the community. In order to do so, the optimum conditions in which to electrochemically generate bleach with a 5 degree chlorometric degree were sought. The conditions tested included: Intensity Salt Concentration Electrode Type Volume of Salt Solution With the use of a self-assembled electrochemical cell connected to a K.E.R.T power supply device, several trials were conducted to pinpoint the optimum conditions. Based on the analysis of all the parameters the optimum conditions at which to apply to the device goes as follows: Optimum Intensity: 5A Optimum Salt Concentration: 45g/L Optimum Electrode Type: Titanium grid/Titanium Oxide Optimum Volume of Salt Solution: 50 mL Due to the scarcity of resources in Senegal, the ideal device was imagined but unattainable. Nonetheless, a smaller device was created using a beaker and a small plastic container that accurately produced sodium hypochlorite at the correct concentration. With an abundance of resources in America, the wonder is whether the imagined device can indeed be generated using the aforementioned optimum conditions.
Funder Acknowledgement(s): This research was funded by NSF HBCU-UP
Faculty Advisor: Sharon Evans, firstname.lastname@example.org
Role: Since the duration of the study was four weeks I was only able to design the device and conduct the trials necessary to pinpoint the optimum conditions. Babacar and I used a smaller stimulation out of a beaker but the entire project was created using aluminum containers that were collected the last week of my stay in Senegal.