Abstract
In this work, a real effluent from oil-water separator of fuel station has been treated for the first time by electrochemical oxidation (EO) process. Electrochemical experiments were carried out under real discharged effluent conditions using Ti/Pt and Ti/IrO2-Ta2O5 anodes at different supporting electrolytesin order to study the influence of the different oxidants electrogenerated. The effect of applied current densities (j = 10, 20 and 30 mA cm- 2) was also evaluated. Results showed that good performances were achieved using Ti/Pt anode adding K2SO4 as supporting electrolyte to improve the solution conductivity. Dissolved organic carbon (DOC) and chemical oxygen demand (COD) abatements of 55.2% and 61.5% were achieved, reducing significant concentration of organic compounds (in terms of benzene-toluene-ethylbenzene-xylene (BTEX) and total petroleum hydrocarbons (TPHs)) at j = 30 mA cm- 2 after only 4 h of electrochemical treatment. Affordable costs of process expenditure of US$ 3.79 m- 3 were also achieved using Ti/Pt anodes; however, these costs could be reduced increasing the solution conductivity. The figures obtained in this investigation provide valuable information for developing of electrochemical technologies to their real application in order to propose a pre or post treatment alternative.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 97-103 |
| Number of pages | 7 |
| Journal | Journal of Electroanalytical Chemistry |
| Volume | 763 |
| DOIs | |
| State | Published - Feb 15 2016 |
| Externally published | Yes |
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Keywords
- Anodic oxidation
- Btex
- DSA
- Fuel station
- TPH
- Wastewater treatment
ASJC Scopus subject areas
- Analytical Chemistry
- Chemical Engineering(all)
- Electrochemistry
Cite this
Fuel station effluent treatment by electrochemical technology. / Da Costa, Patrícia Rachel Fernandes; Da Silva, Djalma Ribeiro; Martínez-Huitle, Carlos Alberto; GARCIA SEGURA, Sergio.
In: Journal of Electroanalytical Chemistry, Vol. 763, 15.02.2016, p. 97-103.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fuel station effluent treatment by electrochemical technology
AU - Da Costa, Patrícia Rachel Fernandes
AU - Da Silva, Djalma Ribeiro
AU - Martínez-Huitle, Carlos Alberto
AU - GARCIA SEGURA, Sergio
PY - 2016/2/15
Y1 - 2016/2/15
N2 - In this work, a real effluent from oil-water separator of fuel station has been treated for the first time by electrochemical oxidation (EO) process. Electrochemical experiments were carried out under real discharged effluent conditions using Ti/Pt and Ti/IrO2-Ta2O5 anodes at different supporting electrolytesin order to study the influence of the different oxidants electrogenerated. The effect of applied current densities (j = 10, 20 and 30 mA cm- 2) was also evaluated. Results showed that good performances were achieved using Ti/Pt anode adding K2SO4 as supporting electrolyte to improve the solution conductivity. Dissolved organic carbon (DOC) and chemical oxygen demand (COD) abatements of 55.2% and 61.5% were achieved, reducing significant concentration of organic compounds (in terms of benzene-toluene-ethylbenzene-xylene (BTEX) and total petroleum hydrocarbons (TPHs)) at j = 30 mA cm- 2 after only 4 h of electrochemical treatment. Affordable costs of process expenditure of US$ 3.79 m- 3 were also achieved using Ti/Pt anodes; however, these costs could be reduced increasing the solution conductivity. The figures obtained in this investigation provide valuable information for developing of electrochemical technologies to their real application in order to propose a pre or post treatment alternative.
AB - In this work, a real effluent from oil-water separator of fuel station has been treated for the first time by electrochemical oxidation (EO) process. Electrochemical experiments were carried out under real discharged effluent conditions using Ti/Pt and Ti/IrO2-Ta2O5 anodes at different supporting electrolytesin order to study the influence of the different oxidants electrogenerated. The effect of applied current densities (j = 10, 20 and 30 mA cm- 2) was also evaluated. Results showed that good performances were achieved using Ti/Pt anode adding K2SO4 as supporting electrolyte to improve the solution conductivity. Dissolved organic carbon (DOC) and chemical oxygen demand (COD) abatements of 55.2% and 61.5% were achieved, reducing significant concentration of organic compounds (in terms of benzene-toluene-ethylbenzene-xylene (BTEX) and total petroleum hydrocarbons (TPHs)) at j = 30 mA cm- 2 after only 4 h of electrochemical treatment. Affordable costs of process expenditure of US$ 3.79 m- 3 were also achieved using Ti/Pt anodes; however, these costs could be reduced increasing the solution conductivity. The figures obtained in this investigation provide valuable information for developing of electrochemical technologies to their real application in order to propose a pre or post treatment alternative.
KW - Anodic oxidation
KW - Btex
KW - DSA
KW - Fuel station
KW - TPH
KW - Wastewater treatment
UR - http://www.scopus.com/inward/record.url?scp=84953730793&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84953730793&partnerID=8YFLogxK
U2 - 10.1016/j.jelechem.2015.12.038
DO - 10.1016/j.jelechem.2015.12.038
M3 - Article
AN - SCOPUS:84953730793
VL - 763
SP - 97
EP - 103
JO - Journal of Electroanalytical Chemistry
JF - Journal of Electroanalytical Chemistry
SN - 0022-0728
ER -