Aerobic degradation of phenolics and aromatic hydrocarbons in presence of cyanide.
Bioresour Technol
; 121: 263-73, 2012 Oct.
Article
in En
| MEDLINE
| ID: mdl-22858495
ABSTRACT
Present study focused on the degradation of a mixture of phenol, cresol, xylenol, quinoline, and indole along with cyanide, commonly found in coke oven wastewater, using aerobic mixed culture. It was found that xylenol and indole were difficult to degrade, when the concentrations were above 250 mg/L. It was observed that free cyanide (2.5mg/L and above) has the potency to holdup the oxidation of organics (250 mg/L) until the cyanide concentration drops to a minimum level. Final TOC in the mixed pollutant system was less than 4 mg/L, indicating the absence of other organic byproducts. Experimental results highlight effect of free cyanide on removal of organics and the combined toxic influence of cyanide and organics on the microbes treating coking wastewater. The proposed mathematical model was able to predict the biodegradation of mixed pollutant system satisfactorily.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phenols
/
Potassium Cyanide
/
Bacteria, Aerobic
/
Water Pollutants, Chemical
/
Water Purification
/
Wastewater
/
Hydrocarbons, Aromatic
Type of study:
Prognostic_studies
Language:
En
Journal:
Bioresour Technol
Journal subject:
ENGENHARIA BIOMEDICA
Year:
2012
Document type:
Article
Affiliation country:
India