Evaluation of a Combined System Based on an Upflow Anaerobic Sludge Blanket Reactor (UASB) and Shallow Polishing Pond (SPP) for Textile Effluent Treatment
Braz. arch. biol. technol
; 63: e20180130, 2020. graf
Article
in En
| LILACS
| ID: biblio-1132195
Responsible library:
BR1.1
ABSTRACT
Abstract Color removal from textile effluents was evaluated using a laboratory-combined process based on an upflow anaerobic sludge blanket (UASB) reactor followed by a shallow polishing pond (SPP). The anaerobic reactor was fed with a real textile effluent, diluted 10-times in a 350 mg/L solution of pre-treated residual yeast extract from a brewery industry as nutrient source. The parameters color, COD, N-NH3 and toxicity were monitored throughout 45 days of operation. According to the results, decolorization and COD removal were highest in the anaerobic step, whereas the effluent was polished in the SPP unit. The overall efficiency of the complete UASB-SPP system for COD and color were 88 and 62%, respectively. Moreover, the N-NH3 generated by the residual yeast extract ammonification was below 5 mg/L for the final effluent. Finally, no toxicity was detected after the treatment steps, as shown by the Vibrio fischeri microscale assay.
Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Textiles
/
Waste Disposal, Fluid
/
Water Purification
Limits:
Animals
Language:
En
Journal:
Braz. arch. biol. technol
Journal subject:
BIOLOGIA
Year:
2020
Document type:
Article
Affiliation country: