摘要
MBR处理生活污水并回用是实现污水资源化的重要途径。本研究中试条件下采用倒置A2/O-MBR工艺处理生活污水,考察冬季低温条件下(8～15℃)的运行效果和运行稳定性。连续运行结果表明,MBR出水的COD≤30 mg/L;ρ(NH4+-N)≤0.9 mg/L;浊度≤0.5 NTU;中试装置合适的回流比为150%～200%;倒置A2/O-MBR工艺的生物除磷作用不明显,需要辅助化学除磷。
Treatment and reuse of domestic wastewater with MBR process is an important approach to reclaim and reuse wastewater.In this pilot-scale study,Inverted AAO-MBR Process was applied to treat wastewater and investigate the operation effect of the pilot device and stability of reclaimed water at low temperature in winter（during this period,the temperature was 8～15 ℃）.The result with continuously operation shows the MBR effluent concentrations of COD,NH4＋-N,turbidity are lower than 30 mg/L,0.9 mg/L and 0.5 NTU respectively.Appropriate reflux ratio for this pilot device is 150%～200%,and biological phosphorus removal of Inverted AAO-MBR Process is not significant,hence,it need the aid of chemical phosphorus removal to reach the standard.
出处
《水处理技术》
CAS
CSCD
北大核心
2013年第3期73-76,共4页
Technology of Water Treatment
基金
科技部国际合作重点课题资助(2012DFG91380
2007DFB90280)
关键词
低温
污水资源化
倒置A2
O-MBR
中试研究
low temperature
renovation of wastewater
Inverted AAO-MBR process
pilot-scale study
