Design and applications of Ti nano-electrode for denitrification of groundwater.
Environ Technol
; 38(23): 3055-3063, 2017 Dec.
Article
in En
| MEDLINE
| ID: mdl-28118793
ABSTRACT
In the present study, a Ti-nano-electrode was fabricated for electrochemical denitrification. Response surface methodology (RSM) was utilized for the optimization of the factors that influence the production of Ti nano-electrodes. Box-Behnken design was applied to develop mathematical models for predicting the best electrochemical nitrate removal geometry. Parameters interacting together can be identified in this typical electrochemical removal process. A correlation coefficient R2 > 0.90 for the mathematical model was predicted to be a high correlation between observed and predicted values. The optimal NH4F concentration, oxidation time and oxidation voltage for preparation of Ti nano-electrode in the present experiment are 0.03â
wt%, 34.61â
min and 6.31â
V, respectively. In this case, the increase in the nitrate reduction efficiency was more d (105%) than that from an untreated electrode, and energy consumption was 4.45 × 10-4â
kWh.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Titanium
/
Water Pollutants, Chemical
/
Water Purification
/
Nanostructures
/
Denitrification
/
Nitrates
Type of study:
Prognostic_studies
Language:
En
Journal:
Environ Technol
Journal subject:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Year:
2017
Document type:
Article