Coupling of anodic biooxidation and cathodic bioelectro-Fenton for enhanced swine wastewater treatment.
Bioresour Technol
; 102(17): 7777-83, 2011 Sep.
Article
em En
| MEDLINE
| ID: mdl-21715164
ABSTRACT
A novel bioelectrochemical reactor with anodic biooxidation coupled to cathodic bioelectro-Fenton was developed for the enhanced treatment of highly concentrated organic wastewater. Using swine wastewater as a model, the anode-cathode coupled system was demonstrated to be both efficient and energy-saving. Without any external energy supply to the system, BOD(5), COD, NH(3)-N and TOC in the wastewater could be greatly reduced at both 1.1g COD L(-1)d(-1) and 4.6g COD L(-1)d(-1) of OLR, with the overall removal rates ranging from 62.2% to 95.7%. Simultaneously, electricity was generated at around 3-8 Wm(-3) of maximum output power density. Based on electron balance calculation, 60-65% of all the electrons produced from anodic biooxidation were consumed in the cathodic bioelectro-Fenton process. This coupled system has a potential for enhanced treatment of high strength wastewater and provides a new way for efficient utilization of the electron generated from biooxidation of organic matters.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Suínos
/
Poluentes da Água
/
Fontes de Energia Bioelétrica
/
Eletroquímica
/
Eletrodos
Limite:
Animals
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article