Treatment of winery wastewater by anodic oxidation using BDD electrode.
Chemosphere
; 206: 709-717, 2018 Sep.
Article
en En
| MEDLINE
| ID: mdl-29783056
The effective removal of organics from winery wastewater was obtained in real residual effluents from the wine industry using anodic oxidation (AO). The effluent had an initial organic load of [COD]0 of 3490â¯mgâ¯L-1 equal to [TOC]0 of 1320â¯mgâ¯L-1. In addition, more than 40 organic compounds were identified by means of GC-MS. Different density currents as well as the addition of electrolytes were tested during electrolysis. The results show the decay of [COD]t by 63.6% when no support electrolyte was added, whereas almost total mineralization and disinfection was reached after adding of 50â¯mM of sodium sulfate and sodium chloride and applying higher density currents. The presence of sulfate and chloride in large concentration favors the production of oxidants such as hydroxyl radicals and active chlorine species that react with organics in solution. Moreover, the addition of a supporting electrolyte to industrial wastewater increases conductivity, reduces cell potential and therefore, decreases the energy consumption of the AO process.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Medicamentos Herbarios Chinos
Idioma:
En
Revista:
Chemosphere
Año:
2018
Tipo del documento:
Article
País de afiliación:
Chile
Pais de publicación:
Reino Unido