WANGQiu-chen,JIANG Hong,ZHANG Yong,et al.Application of Bardenpho, Ozone Catalytic Oxidation and Dual Membrane (UF & RO) Method in a Reclaimed Water Plant[J].China Water & Wastewater,2024,40(6):103-107.
Application of Bardenpho, Ozone Catalytic Oxidation and Dual Membrane (UF & RO) Method in a Reclaimed Water Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第6期
Page:
103-107
Column:
Date of publication:
2024-03-17
- Keywords:
- Bardenpho process; ozone catalytic oxidation; UF process; RO process; reclaimed water plant; salt removal
- Abstract:
- The total capacity of the wastewater treatment plant (WWTP) in a county in Shandong Province is 4.5×104 m3/d. The first phase adopts A2O biochemical tank, air floating tank, and fiber buddle filter process, while phase Ⅱ adopts regulating tank, vortex cavity floating tank, hydrolytic tank, A2O biochemical tank, secondary sedimentation tank, high-efficiency sedimentation tank, ozone contact tank and V-shaped sand filter. The effluent quality of the first and second phase of the project can stably meet the first-level A criteria of the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). Due to the demand for reclaimed water by multiple enterprises in the service scope, by renovating the biochemical system and advanced treatment system in phase Ⅱ project, the effluent quality is upgraded to quasi-Ⅳ of Environmental Quality Standards for Surface Water (GB 3838-2002), and then blended with the first phase effluent to enter the reclaimed water system. The renovated phase Ⅱ project adopts Bardenpho and ozone catalytic oxidation technology, while the reclaimed water system uses the UF and RO membrane method to further remove salt. Since operation in 2022, the actual reclaimed water volume is 1 530 m3/d, and the cost of reclaimed water is 2.0 yuan/m3. The system operates safely and stably, and the effluent meets the water requirements of enterprises with good effect.
Last Update:
2024-03-17