Preprint Article Version 1 This version is not peer-reviewed

Study on the Removal of Fluorescent Whitening Agent for Paper-mill Wastewater Reuse using the Submerged Membrane Bioreactor (SMBR) with Ozone Oxidation Process

Version 1 : Received: 24 October 2019 / Approved: 25 October 2019 / Online: 25 October 2019 (11:34:11 CEST)

How to cite: Choi, J.; Shin, D.; Ryu, S.; Ryu, J.; Shin, W.; Park, M.; Kim, J.; Heo, J. Study on the Removal of Fluorescent Whitening Agent for Paper-mill Wastewater Reuse using the Submerged Membrane Bioreactor (SMBR) with Ozone Oxidation Process. Preprints 2019, 2019100287 (doi: 10.20944/preprints201910.0287.v1). Choi, J.; Shin, D.; Ryu, S.; Ryu, J.; Shin, W.; Park, M.; Kim, J.; Heo, J. Study on the Removal of Fluorescent Whitening Agent for Paper-mill Wastewater Reuse using the Submerged Membrane Bioreactor (SMBR) with Ozone Oxidation Process. Preprints 2019, 2019100287 (doi: 10.20944/preprints201910.0287.v1).

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 COD in the SMBR was 449.3 mg/ℓ-COD, and the concentration of permeate water was 100.3 mg/ℓ-COD. The removal efficiency was about 70.1%. The amount of ozone re- quired 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 COD relative to the permeate water was calculated to remove 0.997 mg-COD for 1 mg of O3.

Subject Areas

membrane bio-reactor (mbr); ozone oxidation; paper and papermill; fluorescent whitening agents; water reuse

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