表流人工湿地-聚砜膜组合工艺处理含油污水效能研究

Study on Purification Efficiency of the Surface Flow Constructed Wetland Combined Polysulfone Membrane Process for Oil Wastewater

为了考察表流人工湿地组合工艺处理污水效果,研究采用表流人工湿地-聚砜(PSF)膜处理含油污水,结果表明:经过表流人工湿地组合工艺处理后,含油污水中的含油量、COD、总氮、氨氮和总磷去除率分别为53.51%,55.82%,49.70%,54.70%和61.67%.根据《地表水环境质量标准》(GB3838-2002),出水中的平均含油量、平均COD含量、平均总氮含量、平均氨氮含量、平均总磷的含量分别达到Ⅰ类,Ⅲ类,Ⅲ类,Ⅲ类,Ⅱ类.

In order to study on the purification of wastewater in surface flow constructed wetland combined processes, the surface flow constructed wetland combined polysulfone membrane process to treat oil wastewater are adopted in this paper. The results show the removal efficiencies of mineral oil, chemical oxygen demand （ COD）, total nitrogen （ TN）, ammonium nitrogen （ NH4 - N） and phosphorus （TP） are 53.51% ,55.82% ,49.70% ,54.70% and 61.67%, respectively. According to China Standard for Surface Water Resources （ GB3838 - 2002 ） , mean effluent mineral oil, COD, TN NH4＋ -N and TP can reach Grade Ⅰ , Grade m, Grade Ⅲ, Grade Ⅲ and Grade Ⅱ, respectively.