The Treatment of Livestock Wastewater by Three Step Series Constructed Rapid Infiltration

Abstract

Constructed Rapid Infiltration system (CRI) is anew type of wastewater land disposal technique based on the traditional wastewater Rapid Infiltration. This paper was study on three step series CRI for removal of pollutants by using preparation of the pig manure wastewater. The results showed that the removal ratios of COD and NH3-N reached81.0%¡¢94.5% respectively, and all the effluent concentration met ¡°the discharge standard of pollutant for livestock and poultry breeding¡±.