MBR处理小区雨、污水并再生回用

MBR for Rainwater and Sewage Treatment and Resource Reuse in Communities

采用MBR对城市小区雨、污水进行资源化处理，以期实现小区水的良性循环。在一体化MBR装置运行参数不变的条件下，改变原水的组成比例，根据再生水回用标准和污泥微生物量指标要求，主要检测COD、氨氮、总磷、BOD5、浊度等5项水质指标和SV、MLSS、SVI等3项污泥指标，确定雨、污水的最佳混合比例，得出在化粪池污水比例为10％的条件下，当雨水和杂排水比例分别为（30％～40％）、（50％～60％）时，处理效果最佳，出水水质满足再生水回用要求。

The resource treatment of rainwater and sewage in urban communities was conducted by using MBR to achieve good water circulation. Under the condition of not changing the operation parame- ters of MBR and changing the composition proportion of raw water, according to the reclaimed water reuse standards and the requirement for quantity of microorganisms in sludge, five water indexes including COD, ammonia nitrogen, TP, BOD5 and turbidity as well as three sludge indexes including SV, MLSS and SVI were tested to determine the best mixed proportion of rainwater and sewage. When the proportion of septic tank sewage was 10%, the best proportions of rainwater and miscellaneous sewage were 30% to 40% arid 50% to 60% respectively. The effluent quality could meet the reclaimed water reuse requirement.