| Title |
A Treatment Efficiency of Wastewater by using Sym-Bio Process and Dissolved Ozone Flotation Process for Water Reuse |
| Authors |
박찬규 ( Chan Gyu Park ) ; 박재한 ( Jae Han Park ) ; 이경희 ( Kyung Hee Lee ) ; 안윤희 ( Yoon Hee Ahn ) ; 고광백 ( Kwang Baik Ko ) ; 정현철 ( Hyun Cheol Jung ) |
| Keywords |
Dissolved ozone flotation process; Sym-Bio process; Water reuse |
| Abstract |
Water reuse of effluent is limited, due to bacteria and chromaticity or turbidity which may result in low perception of water quality. Consequently, this study showed a method in the reuse of treated wastewater by a diversified treatment method, with separation of centralized reformation of aeration tank into pre-treatment with minimum installation of facilities, and post-treatment, applying advanced oxidation treatment. A pilot plant experiment was performed using Sym-Bio process adopting an NADH Sensor without modification of the exiting aeration tank. The Dissolved Ozone Flotation process, which is an advanced oxidation process, to treat the remaining organics, nutrients, chromaticity, turbidity and bacteria. As a result in the Sym-Bio process, the biological treatment, even on the condition of single stage reaction tank, the treatment efficiencies of BOD, CODMn, CODCr, SS and T-N were 96.6%, 84.6%, 88.25%, 95.1% and 71.0%, respectively, while that for T-P was 25.0%, which required further treatment. In the Dissolved Ozone Flotation process, the advanced oxidation treatment, the treatment efficiencies of BOD, CODMn, CODCr, SS, T-N, T-P, chromaticity, turbidity, bacteria, coliforms were 78.9%, 34.6%, 28.7%, 48.0%, 70.4%, 82.4%, 84.0%, 74.5%, 99.8% and 99.4%, respectively. |