Abstract:

Using aerobic sludge from a domestic sewage plant as seed sludge,the start-up experiment of two-phase anaerobic system designed for treating synthetic pharmaceutical wastewater has been studied. The water temperature is controlled at (35±1)℃,and influent pH’s of acidogenic reactor and methanogenic reactor are maintained at 5.5-6.5,and 7.0±0.3,respectively. The volume load rate (VLR) of the system is improved alternately by raising influent COD and increasing influent flow rate. After 51 days of start-up operation,the VLR,HRT and COD removing rates reach 4.7 kg/(m³·d),36 h and 89.5%,respectively. Both acidogenic reactor and methanogenic reactor have cultured a sufficient amount of anaerobic sludge for treating this kind of wastewater,indicating that the two-phase anaerobic reactor has been started up successfully.

Key words: two-phase anaerobic, pharmaceutical wastewater, start-up

摘要：

设计了两相厌氧系统，以生活污水厂好氧污泥为种泥，对合成制药废水进行启动试验研究。控制水温在（35±1）℃，产酸反应器进水pH在5.5~6.5、产甲烷相进水pH在7.0±0.3，通过交替提高进水COD与增大进水流量提高系统容积负荷（VLR）。经过51 d的启动运行，系统的VLR达到4.7 kg/（m³·d）， HRT为36 h，COD去除率达到89.5%。产酸和产甲烷反应器均培养出足量的适于处理该废水的厌氧污泥，表明两相厌氧反应启动成功。

关键词: 两相厌氧, 制药废水, 启动

CLC Number: 

• X703