序批式活性污泥法处理城市污水试验研究

Test Research on the Municipal Wastewater Treatment Using Sequencing Batch Reactor

广州市城市污水具有有机物浓度低,碳、氮、磷比不合理的特点。采用序批式活性污泥法工艺对广州地区城市污水进行了实验研究。结果表明:在污泥负荷为0.14～0.26kg犤BOD5犦/(kg犤MLSS犦·d)时,出水BOD5为5.12～13.6mg/L,CODCr浓度为10.7～32.2mg/L,NH3-N为2.83～9.23mg/L,TP为0.1～0.45mg/L,证明了采用SBR工艺处理碳氮比较低的城市污水是可行的。

Guangzhou municipal wastewater contains low organic matters and C, N and P ratios are not fitting for conventional biological treatment. A sequencing batch reactor (SBR) process was tested in municipal wastewater treatment. When sludge loading was 0.14～0.26 kg/(kg·d), the indices of effluent from SBR were as follows: BOD5 = 5.12～13.6 mg/L, COD Cr=10.7～32.2mg/L, NH 3-N= 2.83～9.23 mg/L and TP =0.1～0.45 mg/L.The result shows that using SBR to treat municipal wastewater with low content carbon and nitrogen is applicable.