摘要：
研制开发了高浓度絮体化好氧颗粒污泥流化床装置,针对生活废水进行了半工业性实验。3个月的连续运行结果表明,高浓度絮体化好氧颗粒污泥流化床具有较高的生物降解效率,且能够稳定运行。实验表明,该装置内MLSS达到14 g/L,是AA/O氧化沟(MLSS为3~4 g/L)的4倍。其水力停留时间为1 h时的出水COD是45 mg/L,达到国家排放标准;控制水力停留时间为4 h时,出水COD稳定在23 mg/L左右,其处理效率是传统AA/O氧化沟工艺的4倍。
关键词:
好氧工艺,
絮状颗粒污泥,
流化床
Abstract:
An equipment of highly concentrated flocculating aerobic granular sludge fluidized bed has been studiedand developed for carrying out the semi-industrial experiments on domestic sewage. After a 3-month continuous operation，the results show that this equipment has higher biodegradation efficiency and could run stably. The experiment results show that the MLSS in the equipment is up to 14 g/L，which is 4 times of AA/O oxidation ditch（MLSS：3-4 g/L）. When the hydraulic retention time（HRT） takes one hour，the effluent COD turns out to be 45 mg/L，which meets the requirements of the national discharge standards. When the HRT is 4h，effluent COD turns out to be 23 mg/L，whose treatment efficiency is 4 times of AA/O oxidation ditch.
Key words:
aerobic process,
flocculent granule sludge,
fluidized bed
中图分类号:
钟乐, 湛含辉. 高浓度絮状颗粒污泥流化床的半工业化实验[J]. 工业水处理, 2011, 31(11): 42-44,45.
Zhong Le, Zhan Hanhui. Semi-industrial experiments of highly concentrated flocculent granule sludge fluidized bed[J]. INDUSTRIAL WATER TREATMENT, 2011, 31(11): 42-44,45.