Park, HI Kim, DK Choi, YJ Pak, D 2024-01-21T04:10:59Z 2024-01-21T04:10:59Z 2022-01-10 2005-10 1359-5113 https://pubs.kist.re.kr/handle/201004/136068 Nitrate reduction using an electrode as a direct electron donor in a biofilm-electrode reactor was investigated to treat an aqueous solution containing high concentrations of nitrate. In the absence of organic substances, nitrate was reduced by micro-organisms consuming electrons from the electrode. The maximum nitrate reduction rate was 98% at an applied current of 200 mA. As nitrate concentrations decreased, the oxidation-reduction potential (ORP) gradually decreased from -80 to -260 mA. The maximum volumetric nitrate removal rate obtained from the biofilm-electrode reactor was 0.17 mg NO3--N/(cm(2) (biofilm surface area) day). (c) 2005 Elsevier Ltd. All rights reserved. English ELSEVIER SCI LTD DRINKING-WATER BIOLOGICAL DENITRIFICATION FLUIDIZED-BED PERFORMANCE KINETICS REMOVAL Nitrate reduction using an electrode as direct electron donor in a biofilm-electrode reactor Article 10.1016/j.procbio.2005.03.017 1 PROCESS BIOCHEMISTRY, v.40, no.10, pp.3383 - 3388 PROCESS BIOCHEMISTRY 40 10 3383 3388 scie scopus 000231833100037 2-s2.0-27744467795 Biochemistry & Molecular Biology Biotechnology & Applied Microbiology Engineering, Chemical Biochemistry & Molecular Biology Biotechnology & Applied Microbiology Engineering Article DRINKING-WATER BIOLOGICAL DENITRIFICATION FLUIDIZED-BED PERFORMANCE KINETICS REMOVAL nitrate reduction electrode electron donor biofilm-electrode reactor biofilm