Recycled packed-bed reactor for efficient denitrification
Kim, S.H.(SK Corporation, Daejeon, Republic of Korea) | Song, S.H.;Yoo, Y.J.(Seoul National University, Seoul, Republic of Korea)E-mail:yjyoo@snu.ac.kr | Park, J.Y.(KIST, Water Environment and Remediation Research Center, Seoul, Republic of Korea)
Recycled packed-bed reactor emploring immobilized microorganism was suggested in this paper for efficient denitrification. In the batch reactor, the effects of initial oxidation-reduction potential and nitrate concentration on denitrification were investigated. As the initial oxidation-reduction potential was decresed to -70 mV from ＋40 mV, the removal rate of nitrate was increased to 3.33 from 1.25 mg NO₃--N/min under the experimental conditions. As the initial nitrate-N concentraion was increased to 200 ㎎/l, the removal rate of nitrate was proportional to the concentration of nitrate.
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