摘要： 在SBR反应器中驯化培养好氧颗粒污泥。考察颗粒污泥物理性能变化和有机物降解效果，研究好氧颗粒污泥在低浓度有机废水中的适应性。实验结果表明，污泥颗粒化进程快，反应器运行第14天时，出现粒径为3~6 mm，表面光滑有光泽的颗粒污泥，对COD的去除率保持在85%以上；降低COD后，NH₃-N、TP的去除率分别为74%和90%；系统对甲醇有去除作用但效果不理想，最终去除率只达到24.28%。

关键词: 颗粒化, SBR, 微生物种群, 有机物降解

Abstract: The aerobic granular sludge has been cultured in a sequencing batch reactor(SBR). The physical capacity change of aerobic granular sludge and degradation effectiveness of organic matter are investigated. Moreover, the adaptability of aerobic granular sludge in low-concentration wastewater is inspected. The results show that the sludge granulation proceeds fast. When the reactor has run for 14 d, the granular sludge with a diameter of 3-6 mm and smooth and shiny surface appears. Its removing rates on COD maintains at 85% or more. After the COD gets lower, the removing rates of NH₃-N and TP are 74% and 90%, respectively. It is detected that the system has removing effect on methanol, but its effectiveness is not satisfactory, being only 24.38%, at last.

Key words: granulation, sequencing batch reactor, microbial populations, organic matter degradation

中图分类号: 

• X703