摘要
采用垂直流湿地与水平流湿地组合成的复合人工湿地系统对化粪池污水进行处理,研究了该系统对污水中TP、NO3—N及NH4＋—N的去除效果。污水中TP的去除率为72.22%~98.88%,NO3—N的去除率为81.50%~97.12%,NH4＋-N的去除率80.52%~95.27%,出水水质符合排放标准。其中对TP和NH4＋-N的处理后的出水浓度均达到《城镇污水处理厂污染物排放标准》（GB18918-2002）一级A标准。在春季该系统对污水的净化效果明显高于冬季,去除率相差10%左右,而且对低浓度污水的去除率要比高浓度污水更低。该复合垂直流-水平流人工湿地系统对污水的高营养污染物具有明显的净化效果。
The composite artificial wetland system that was combined by two-grade vertical flow and horizontal flow wetland was adopted to treat with septic tank sewage, and studied the removal efficiency ofTE NO3- and NH4＋-N from wastewater. The removal rates of composite wetland system on TP, NO3- and NH4＊-N were 72.22 %~98.88 %, 81.50 %~97.12 % and 80.52 %-95.27 %, respectively, and effluent quality were satisfactory with discharge standards. The concentrations of TP and NH4＋-N in the treated effluent could stably standard A of the first class in ＂Discharge standard of pollutants for municipal wastewater treatment plant＂ （GB 18918-2002）. The sewage purification effect in spring was higher than that in winter by around l0 %, and the low concentration sewage showed a lower elimination rate than the highly concentrated sewage. The composite artificial wetland system of and horizontal-flow and vertical-flow had better purification effect on high nutrient pollutant in wastewater.
出处
《广东化工》
CAS
2015年第1期94-95,共2页
Guangdong Chemical Industry
关键词
垂直流-水平流复合人工湿地系统
氮
磷
去除率
the vertical- horizontal flow constructed wetlands
nitrogen
phosphorus
removal rate
