摘要
为降低水体富营养化,采用SBR法处理城市污水,考察SBR法脱氮除磷的效果以及pH值、曝气时间等条件对脱氮除磷效果的影响.结果表明:pH值为7.5～8.5、曝气时间为3.5h、进水的COD、TP(总磷)、TN(总氮)的浓度分别为105～143mg/L、1.6～6.45mg/L、64.96～82.16mg/L时,COD、TP、TN的去除率可分别达到74.05%～100%、32.80%～88.57%、95.44%～98.59%.
\ To lower the trend of serious eutrophication of reservoirs ,this paper studied the ability of SBR (Sequencing Batch Reactor) process to remove nitrogen and phosphorus from city wastewater. The results showed that under the experimental condition of pH 7.5～8.5, the aeration time used 3.5 hours ,when concentration of COD?TP?TN in entering water was 105～143 mg/L, 1.6～6.45 mg/L, 64.96～82.16 mg/L respectively,the efficiency of COD, nitrogen and phosphorus removal rate reached about 74.05 %～100 %?32.80 %～88.57 %?95.44 %～98.59 % respectively.
出处
《沈阳化工学院学报》
2003年第2期99-101,共3页
Journal of Shenyang Institute of Chemical Technolgy
关键词
SBR法
城市污水
脱氯
除磷
SBR
city wastewater
phosphorus removal
nitrogen removal
