Abstract
ABSTRACTAn aerobic denitrifying bacteria Pseudomonas sp. Z31 was added to a bio-ceramsite reactor to treat nitrate polluted wastewater. The purpose of this work was to investigate the effects of temperature on aerobic denitrification process in the reactor. When temperature increased from 15 to 30°C, nitrate (NO3–-N) removal efficiency increased from 66.20 to 98.79%, total nitrogen (TN) removal efficiency increased from 61.34 to 96.76%, and chemical oxygen demand (COD) removal efficiency increased from 78.08 to 92.82%. In addition, large numbers of reported aerobic denitrifying bacteria such as Bacillus sp. and Pseudomonas sp. were detected in the bio-ceramsite reactor.
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