Dechlorination of polychlorinated biphenyl-contaminated soil via anaerobic composting with pig manure.
J Hazard Mater
; 261: 826-32, 2013 Oct 15.
Article
em En
| MEDLINE
| ID: mdl-23910395
ABSTRACT
Anaerobic dechlorination is an effective degradation pathway of higher chlorinated polychlorinated biphenyls (PCBs). The efficiency of anaerobic composting remediation of PCB-contaminated soil using pig manure was determined. The results show that the dechlorination of PCB-contaminated soil via anaerobic composting with pig manure is feasible. PCB concentration is the most critical factor. Elevated PCB concentrations can inhibit dechlorination but does not disrupt the anaerobic fermentation process. At 1 mg kg(-1) PCBs, the degradation rate of five or more chlorinated biphenyls is 43.8%. The highest dechlorination performance in this experiment was obtained when the soil-to-organic waste ratio, carbon-to-nitrogen ratio, moisture content, and PCB concentration were 23, 20, 60%, and 1 mg kg(-1), respectively.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Poluentes do Solo
/
Cloro
/
Bifenilos Policlorados
/
Esterco
Limite:
Animals
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article