光合细菌-活性污泥联合处理皂素废水的实验研究

The Joint Applying of Photosynthetic Bacteria(PSB) and Activated Sludge on Saponin Wastewater Treatment

利用驯化的光合细菌-活性污泥联合处理皂素生产废水。实验结果表明:对于COD为25000～30000mg/L的皂素生产废水,起始pH值为6.5～7.5,温度为20～30℃,投加5%的接种量(V光合细菌:V活性污泥=1:1),添加适量的N、P物质(m(COD):m(N):m(P)=200:5:1),歇曝气4d的条件下,皂素生产废水的COD去除率可达97.5%。

Technical conditions for joint application of photosynthetic bacteria and activated sludge on saponin wastewater treatment were studied. The results showed that,COD removed rate was up to 97.5% under the following conditions,COD value of saponin wastewater： 25 000-30 000 mg/L, pH=6.5-7.5, temperature： 20-300 ℃,inoculation： 5 % （VPSB ：V activated sludge=1：1 ）, and treatment period of intermittent aeration： 4 days.