Simultaneous Treatment of Wastewater and Direct Blue 2 Azo Dye in a Biological Aerated Filter Under Different Oxygen Concentrations

2017 ◽  
pp. 376-381 ◽  
Author(s):  
E. González-Gutiérrez-de-Lara ◽  
S. González-Martínez
Keyword(s):  
Azo Dye ◽  
Biological Aerated Filter ◽  
Simultaneous Treatment ◽  
Direct Blue ◽  
Aerated Filter ◽  
Oxygen Concentrations

Treatment of the azo dye direct blue 2 in a biological aerated filter under anaerobic/aerobic conditions

2010 ◽  
Vol 61 (3) ◽  
pp. 789-796 ◽  
Author(s):  
S. González-Martínez ◽  
S. Piña-Mondragón ◽  
Ó. González-Barceló
Keyword(s):  
Azo Dye ◽  
Municipal Wastewater ◽  
Dye Removal ◽  
Ammonia Nitrogen ◽  
Final Concentration ◽  
Biological Aerated Filter ◽  
Removal Rates ◽  
Aerobic Conditions ◽  
Direct Blue ◽  
Aerated Filter

The main objective of this research was to determine the feasibility to treat the azo dye direct blue 2 together with municipal wastewater in a biological aerated filter (BAF) using lava stones as support of the microorganisms and under combined anaerobic/aerobic conditions. A 3 m high pilot biological aerated filter was fed with municipal wastewater and, after several weeks, the azo dye direct blue 2 was added to the wastewater to reach a final concentration of 50 mg/L (34 mgCOD/L). Under continuous operation, two strategies were tested: Alternating aeration (12 h anaerobic and 12 h aerobic) and combined aeration (the lower part of the filter anaerobic and the upper part aerobic). The results indicate that municipal wastewater acted as a good electron donor resulting in satisfactory COD and dye removal rates. Better dye removal (61%) was obtained with combined aeration than with alternating aeration (45%). After beginning the azo dye addition, the COD removal rates decreased from 87 to 81% for both alternating and combined aeration procedures. The average ammonia nitrogen removal, without the addition of the dye, was 73% and increased to 90% shortly after beginning the dye addition, then it decreased to 81% during the combined aeration period. Excellent nitrification was observed in the upper aerobic part of the filter. For the combined aeration phase, the conditions change from anaerobic to aerobic does not seem to affect the behavior of the COD and TSS curves.

Treatment of wastewater containing azo dye reactive brilliant red X-3B using sequential ozonation and upflow biological aerated filter process

2009 ◽  
Vol 161 (1) ◽  
pp. 241-245 ◽  
Author(s):  
Xujie Lu ◽  
Bo Yang ◽  
Jihua Chen ◽  
Rui Sun
Keyword(s):  
Azo Dye ◽  
Biological Aerated Filter ◽  
Filter Process ◽  
Aerated Filter

Demonstration of an up-flow biological aerated filter system for nitrogen removal from non-nitrified secondary effluent

2015 ◽  
Vol 2015 (3) ◽  
pp. 1-5
Author(s):  
Liyan Jin ◽  
Young J Eum ◽  
Joon H Min ◽  
Hongkeun Park
Keyword(s):  
Nitrogen Removal ◽  
Secondary Effluent ◽  
Biological Aerated Filter ◽  
Filter System ◽  
Aerated Filter

scholarly journals Technology review of the biological aerated filter systems BAFs for removal of the nitrogen in wastewater

2021 ◽  
Vol 664 (1) ◽  
pp. 012106
Author(s):  
Adel S. Ibrahim Faskol ◽  
Gabriel Racoviţeanu
Keyword(s):  
Biological Aerated Filter ◽  
Aerated Filter ◽  
Technology Review

Effect of coal gangue-fly ash ceramic (CFC) media on municipal wastewater treatment in a pre-denitrification biological aerated filter

2011 ◽  
Vol 31 (1-3) ◽  
pp. 372-378 ◽  
Author(s):  
Hongbo Hu ◽  
Hongjun Han ◽  
Wei Wang ◽  
Bing Wang ◽  
Yufei Li
Keyword(s):  
Wastewater Treatment ◽  
Fly Ash ◽  
Municipal Wastewater ◽  
Coal Gangue ◽  
Biological Aerated Filter ◽  
Municipal Wastewater Treatment ◽  
Aerated Filter

Textile Wastewater Treatment Using Combined Process of Biological Wriggle Bed and Ozone Biological Aerated Filter

2012 ◽  
Vol 441 ◽  
pp. 589-592
Author(s):  
Zhi Min Fu ◽  
Yu Gao Zhang ◽  
Xiao Jun Wang
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Textile Wastewater ◽  
Cod Removal ◽  
Biological Aerated Filter ◽  
Combined Process ◽  
Cod Removal Efficiency ◽  
Aerated Filter ◽  
Textile Wastewater Treatment

A combined process of biological wriggle bed and ozone biological aerated filter was utilized to treat textile wastewater. Results showed that COD removal efficiency was almost 90.4%. The average effluent COD was 85.87 mg/L. The effluent colority was 64-32 times. This study indicated that the combined process is potentially useful for treating textile wastewater.

Sign in / Sign up

Export Citation Format

Share Document