硅酸盐水泥去除垃圾渗滤液氨氮的技术研究

Research on the Removal of Ammonia Nitrogen in Landfill Leachate by Portland Cement

试验研究表明,硅酸盐水泥对去除垃圾渗滤液的氨氮有较好效果,对影响去除效果的主要因素如水泥投加量、反应时间、搅拌强度和中和加酸的方式进行了详细的研究。在水泥投加量10 g/L,反应时间3.5 h时,去除率可以达到35%以上;用磷酸与水泥的混合液参与反应时,去除率达到45%以上。

The experiment shows the portland cement achieves good results for removing the ammonia nitrogen in the lanfill leachate. The main affecting factors have been studied, such as the cement dosage, reaction time, stirring intensity and the plusing acid for neutralization method. Under conditions： cement 10 g/L and reaction time 3.5 hours, the removal rate can reach above 35%. The removal rate will be achieved 45% when it takes into reaction using the mixture of phosphoric acid and portland cement.