Journal
SEPARATION AND PURIFICATION TECHNOLOGY
Volume 130, Issue -, Pages 167-172Publisher
ELSEVIER
DOI: 10.1016/j.seppur.2014.04.030
Keywords
Magnetic carrier; Porous ceramsite; Biofilm reactor; Coking wastewater; Biofilm activity
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Funding
- National Natural Science Foundation of China [51268018]
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In this study, porous ceramsite was modified using a magnetic material. The modified porous ceramsite was applied to the treatment of coking wastewater in a biofilm reactor. The results showed that the COD and NH3-N removal efficiencies in the modified porous ceramsite biofilm reactor were 25-30% higher than in an activated sludge reactor, and 15-20% higher than in a biofilm reactor without a magnetic carrier. Under conditions with an aeration flow of 1.5 mL/h, aeration duration of 10 h/d, and a temperature of 25-30 degrees C, the removal efficiencies for COD and NH3-N in the porous ceramsite biofilm reactor were similar to 90%. (C) 2014 Elsevier B.V. All rights reserved.
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