环境工程学报2011，Vol.5Issue(12)：2663-2667,5.
鸟粪石沉淀法预处理高氨氮废水的镁盐研究
Study on magnesium agents for the pretreatment of high-strength ammonia wastewater by struvite precipitation
摘要
Abstract
The ment of high-strength gents on the removal method, when using cost of chemicals has limited the application of struvite precipitation method for the treatammonia wastewater. This study investigated the effect of several different magnesium a- of ammonia in the treatment of high-strength ammonia wastewater by struvite precipitation Na2HPO4 · 12H2O as the source of orthophosphate. The costs of chemicals were also com- pared. The experimental results indicated that combination of MgCl2 and MgO has great advantage in both ammonia removal and cost reducton. Under the following conditions ： the molar ratio of N： P： Mg = 1 ： 1 ： 1.5, the molar ratio of MgC12： MgO = 1 ： 2, and the reaction time = 30 rain, the removal rate of ammonia nitrogen was up to 90%. Compared with the common method using MgCl2 , more than two-thirds of chemical cost was saved.关键词
鸟粪石沉淀法/高氨氮废水/镁盐Key words
struvite precipitation method/high-strength ammonia wastewater/magnesium agents分类
资源环境引用本文复制引用
陈静霞,李咏梅..鸟粪石沉淀法预处理高氨氮废水的镁盐研究[J].环境工程学报,2011,5(12):2663-2667,5.基金项目
基金项目：国家水体污染控制与治理科技重大专项 （）
