好氧-厌氧循环交替生物除磷影响因素的研究

采用厌氧-好氧循环交替生物除磷工艺,研究了各因素对系统除磷效果的影响。结果表明,培养的基质是生物除磷最为关键的影响因素,综合考虑,利用乙酸钠与葡萄糖混合基质培养的活性污泥体系最好,对COD、N-H、PO4^3-的去除分别为0.966、0.979、0.921,尤其是在PO4^3-的去除上效果更为显著,比单一葡萄糖培养基质的0.4高出一倍多。利用乙酸钠与葡萄糖混合基质培养的活性污泥在pH为7～8（7.5）、温度为20℃～30℃、厌氧阶段DO为小于（等于）0.16 mg/L、好氧阶段DO为2 mg/L～4 mg/L、COD在300 mg/L～500 mg/L、污泥龄为15天时体系运行效果最佳。

Study the Effect of Factors about the Phosphorus Removing of Anaerobic-Aerobic Alternating Cycle System

Using anaerobic - aerobic ahemating cycle system for biological phosphorus removal process. The effect of factors on phosphorus removing was studied. The results showed that cultured stromal is the most eritieal factors in biological phosphorus removing system. Collectivity, using the mixing of acetate - sodium and glucose cultivated activated sludge system was best, the COD, NH, PO4^3-removal were 0. 966, 0. 979, 0. 921, especially in the PO4^3- removing process, the effect was more remarkable. The effect doubled more than 0. 4 at single matrix glucose. Use the mixing of acetate - sodium and glucose cultivated activated sludge system in the pH of 7 -8 （7.5）, the temperature on 20℃ -30℃, anaerobie stage DO for less （equivalent） 0. 16 mg/l, aerobic stage DO 2 mg/l -4 mg/l, COD in the 300 mg/l -500 mg/l, keep the sludge for 15 days, the system run the best.