自然循环式污水处理系统及应用实例研究

自然循环污水处理系统(naturalcirculationsystem,NC)是日本研究开发的一种新型的污水人工渗滤处理系统,该技术将落叶、木屑、木炭和石头等自然材料作为填料,并通过各处理单元的有效组合,使该装置内的生物净化功能达到最佳效果。在江苏省宜兴市建立的示范工程显示:NC系统对污水中几个代表性水质指标有较好的去除,CODCr、BOD5、TP和NH+4N等指标基本去除率分别为4951%~9513%、50%~80%、3560%~7813%和7198%~9844%。

Research and application of natural circulation wastewater treatment system

Natural circulation wastewater treatment system is newly developed under constructed infiltration system,which is introduced from Japan. This wastewater facilities can make the best of natural purification functions by the principle that microorganism can purify the wastewater. The major filter materials are natural materials, including charcoal,dead trees,stones, etc Meanwhile, this system makes the optimal combination of anaerobic unit and aerobic unit. All of this measures make the system a best treatment effects to wastewater.A such system has been built in Yixing City,Jiangsu Province. This system has a good treatment effect. Removal rates of COD Cr ,BOD 5,TP and NH + 4 N are 49 51%~95 13%,50%~80%;35 60%~78 13% and 71 98%~98 44% respectively