HuFujing,WangMengyuan,ChenKang,et al.Operation and Energy Consumption Assessment of a Large-scale Flat Sheet AAO-MBR Process[J].China Water & Wastewater,2026,42(17):78-83.
Operation and Energy Consumption Assessment of a Large-scale Flat Sheet AAO-MBR Process
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第42卷
Number:
第17期
Page:
78-83
Column:
Date of publication:
2026-09-01
- Keywords:
- AAO-MBR process; flat sheet membrane; operation performance; energy consumption assessment; reclaimed water reuse
- Abstract:
- A municipal wastewater treatment plant in northern China, employing a large-scale flat sheet AAO-MBR process with a design capacity of 5×104 m3/d, was selected for evaluation in terms of process design, operational performance, energy consumption, and reclaimed water reuse potential. The results indicated that the flat sheet AAO-MBR process was reasonably designed and had the potential to meet increasingly stringent discharge standards. The monthly average effluent concentrations of COD, BOD5, TN, NH3-N, and TP were 16.28 mg/L, 4.39 mg/L, 5.45 mg/L, 0.71 mg/L, and 0.07 mg/L, with corresponding removal rates of 91%, 94%, 79%, 94%, and 97%, respectively. SS was consistently below the detection limit throughout the operation. The effluent quality not only met the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), but also exceeded the class Ⅳ standard of the Environmental Quality Standards for Surface Water (GB 3838-2002), with the exception of TN. The energy consumption was 0.552 kW·h/m3, which is relatively low among similar processes, though there remains considerable potential for further optimization. Moreover, the effluent shows substantial reuse potential and can be safely utilized for farmland irrigation, green space watering, urban miscellaneous uses, industrial water supply, and landscape enhancement.
Last Update:
2026-09-01