组合填料接触氧化处理生活污水试验研究

Experimental Research on the Treatment of the Life Sewage in the Bio-Contact Oxidation Technology of Combined Fillers

利用生物氧化工艺处理污水,在挂膜启动过程中,对原水进行20%、40%、60%、80%四个阶段的稀释,在监测组合填料对COD、BOD5、NH3-N、TP的去除率时发现,在保持原水浓度进水水力停留时间为3 h、溶解氧浓度为3.5 mg/L、pH值为7.05～8.23、水温为17.4～30.6℃的条件下,组合填料对COD、BOD5、NH3-N、TP的去除率分别为76.3%、78.4%、74.9%、58.8%。

The raw water was diluted in four levels of 20%,40%,60%,80% in the biofilm culturing process,the results show that,when the raw water concentration is invariable,the HRT is 3 h,the DO concentration is 3.55 mg/L,the pH is 7.05-8.23,water temperature is 17.4-30.6 ℃,the removal rate of the combined fillers to COD、BOD5、NH3-N、TP separately maintains at 76.3%,78.4%,74.9%,and 58.8% respectively.