中试螺旋式自循环厌氧反应器处理安乃近制药废水的稳定性能

Stability of pilot-scale spiral automatic circulation anaerobic reactor treating analgin pharmaceutical wastewater

以制药废水实验了50m3螺旋式厌氧反应器（SPAC反应器）的稳定性。采用AugmentedDickey—Fuller（ADF）单位根检验表明，螺旋式反应器具有良好的启动和运行稳定性。负荷冲击实验显示，SPAC反应器具有较好的耐浓度冲击能力和耐水力冲击能力，所能耐受的最大浓度冲击强度大于60000（mg·h）／L（进水浓度提升2倍），所能耐受的最大水力冲击强度为300（m3·h）／d（进水流量提升50％）。SPAC反应器还具备受扰恢复能力。在反应液pH低于5．74，出水浓度、COD去除率和容积COD去除速率（VRR）分别为3500mg／L、22．30％和2．52kg／（m3·d）的工况下，经过30d恢复，出水浓度、COD去除率和VRR的恢复程度达到80％～90％。

The stability of pilot-scale spiral automatic circulation （SPAC） anaerobic reactor with a capacity of 50 m3 treating high concentration pharmaceutical wastewater was investigated. The Augmented Dickey-Fuller unit boot test was introduced to evaluate the stationarity of start-up and running of SPAC reactor. The results showed that the start-up and running periods were stationary. The SPAC reactor had a good ability to resist influ- ent concentration shock and hydraulic shock. The withstand maximum influent concentration shock strength was above 60 000 （mg ~ h）/L （influent COD concentration increased by 200% ）, and the withstand maximum hy- draulic shock strength was 300 （m3 ~ h）/d （inflow rate increased by 50% ）. The SPAC reactor also had a good recovery capability. During the running period, SPAC reactor suffered from acidification due to the suddenly drop of influent pH to 5.74, the recovery degree of effluent COD concentration, COD removal efficiency and VRR was 80% -90% after 30 days＇ recovery.