Degradation of synthetic dye wastewater by using combined anaerobic-aerobic and aerobic sequencing batch reactors
Date
2012-06-18Author
Murali, V.
Ong, Soon-An
Nasrul, Hamidin, Dr.
Wong, Yee Shian
Ho, Li Ngee
Khairul Anuar, Pakri
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Show full item recordAbstract
Azo dyes are the dye used by the majority of the textile industries. The treatment options
for this azo dye are physical, chemical and biological methods. The aim of this study was to assess
the performance of dye degradation in the dye synthetic wastewater using anaerobic-aerobic and
aerobic sequencing batch reactors. Both the reactors were used in batch mode for 24 hours cycle.
The reaction time of the cycle time was divided into anaerobic and aerobic in the combined
anaerobic-aerobic reactor and fully aerobic in the aerobic reactor. The other operational parameters
are 1000 to 1400 mg/l influent Chemical Oxygen Demand (COD) including 200 mg/l contributed
by Remazol Brilliant Pink, Remazol Brilliant Green, Remazol Yellow and Remazol Violet as color
concentrations. Under these conditions maximum color removal was achieved in the anaerobicaerobic
reactor compared to aerobic sequencing batch reactor. In COD reduction, maximum 85%
was attained in anaerobic-aerobic reactor and 98% was obtained in aerobic sequencing batch
reactor.