제지폐수 재이용을 위한 침지형 생물막 여과와 오존산화공정(SMBR - Ozone Oxidation Process)에 의한 형광증백제 제거에 관한 연구
Study on the Removal of Fluorescent Whitening Agent for Paper-mill Wastewater Reuse using the Submerged Membrane Bioreactor(SMBR) with Ozone Oxidation Process
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In this study, effluent water was produced through Submerged Membrane Bio-Reactor(SMBR) process, which is a simple system and decomposes organic matter contained in wastewater with biological treatment process and performs solid-liquid separation, Especially, ozone oxidation treatment process is applied to effluent water containing fluorescent whitening agent, which is a trace pollutant which is not removed by biological treatment, and influences the quality of reused water. The concentration of CODCr in the Submerged MBR bioreactor was 449.3 mg/ℓ-CODCr, and the concentration of permeate water was 100.3 mg/ℓ-CODCr. The removal efficiency was about 70.1%. The amount of ozone required for the removal of the fluorescent whitening agent in the permeated water in SMBR was 6.67 g-O3/min, and The amount of ozone required to remove CODMN relative to the permeate water was calculated to remove 0.997mg-CODMn for 1mg of O3.
Abstract
In this study, effluent water was produced through Submerged Membrane Bio-Reactor(SMBR) process, which is a simple system and decomposes organic matter contained in wastewater with biological treatment process and performs solid-liquid separation, Especially, ozone oxidation treatment process is applied to effluent water containing fluorescent whitening agent, which is a trace pollutant which is not removed by biological treatment, and influences the quality of reused water. The concentration of CODCr in the Submerged MBR bioreactor was 449.3 mg/ℓ-CODCr, and the concentration of permeate water was 100.3 mg/ℓ-CODCr. The removal efficiency was about 70.1%. The amount of ozone required for the removal of the fluorescent whitening agent in the permeated water in SMBR was 6.67 g-O3/min, and The amount of ozone required to remove CODMN relative to the permeate water was calculated to remove 0.997mg-CODMn for 1mg of O3.
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