MUCT工艺用于生活污水的除磷脱氮研究

Experimental research on phosphorus and nitrogen removal of civil wastewater wit h MUCT process

采用MUCT工艺处理秦皇岛市的城市生活污水,通过试验研究发现,该工艺对生活污水中的有机物、氮、磷等污染物具有良好的去除效果。结果表明,水样平均进水水质CODCr=261.90mg/L、NH4+-N=31.55mg/L、TP=3.77mg/L、TN=47.50mg/L,控制泥龄、水力停留时间、溶解氧运行参数,处理后的出水主要水质指标均能达到《城镇污水处理厂污染物排放标准》(GB18918—2002)。并提出了该技术处理秦皇岛市城市生活污水的最佳工艺条件。

It is discovered in experiments that the MUCT process has exce llent effect on the removal of the organisms, phosphorus and nitrogen in the ci vil wastewater. Controlling run parameter such as SRT, HRT, DO, etc., the re sults show that the sample with the following average values, CODCr = 261.90 mg /L, NH4+ - N = 31.55 mg/L, TP = 3.77 mg/L,TN = 47.50 mg/L, can be up to the national discharge standard of pollutants for municipal wastewater treatment plant(GB 18918 -2002) after the treatment by MUCT process. Furthermore, th e optimium operational conditions for the process have been suggested to dispose the municipal wastewater in Qinhuangdao city.