厌氧渗滤器处理农村分散型生活污水的实验研究

STUDY ON ANAEROBIC INFILTRATION DEVICE FOR RURAL DECENTRALIZED DOMESTIC SEWAGE TREATMENT

为了开发一种适合于处理农村分散型生活污水的预处理装置,设计了1种厌氧渗滤器,通过处理实际生活污水的实验研究,考察了温度、原水水质、HRT对厌氧渗滤器处理效果的影响。结果显示,厌氧渗滤器能够为后续工艺大幅削减有机负荷,在低温条件下(12℃),也能够提供COD低于200 mg/L、SS的质量浓度低于50 mg/L的出水。而且运行管理简单、启动容易、故障率低、出水稳定。适合于处理COD高于400 mg/L的农村分散型生活污水。

In order to develop a pretreatment device for rural decentralized sewage, an anaerobic infiltration device was developed to treat domestic sewage. Effects of temperature, wastewater quality, and hydraulic retention time （HRT） on the performance of anaerobic infiltration device were studied. The results show that the anaerobic infiltration device can reduce the organic load greatly for the subsequent process. At low temperatures conditions （12 ℃）, the COD concentrations of effluent below 200 mg/L and SS concentrations below 50 mg/L. Management and operation is simple, easy start, low failure rate, and effluent quality is stable. It is suitable for handling COD concentrations higher than 400 mg/L in rural decentralized sewage.