不同骨料的植生混凝土脱氮除磷效果的比较  

Comparison of the effects on the removal of nitrogen and phosphorus of different aggregates

作　　者：潘小康[1,2] 杨金辉[1] 虢清伟[2] 张政科[2] 黄大伟[2] 杨好星 严雄风 

机构地区：[1]南华大学,湖南衡阳421000 [2]环境保护部华南环境科学研究所,广东广州510655 [3]广东工业大学,广东广州510006

出　　处：《混凝土》2016年第3期140-142,150,共4页Concrete

基　　金：国家自然科学基金项目(50908095);广东省自然科学基金(9451065501002521)

摘　　要：采用粒径为25-30 mm的沸石、钢渣、砾石为骨料制作植生混凝土,比较了不同骨料制作的植生混凝土脱氮除磷效果,探讨了骨料对植生混凝土脱氮除磷效果的影响。研究结果表明：在保持进水氨氮和总磷浓度为5.0、1.0 mgL的条件下,30 d时沸石、钢渣、砾石植生混凝土对氨氮的去除率分别为89.75%、72.22%、70%,对总磷的去除率分别为81%、77%、68%。沸石植生混凝土对氨氮去除效果优于钢渣、砾石制作的混凝土材料,钢渣植生混凝土对总磷的去除效果优于其他两种骨料制作的混凝土材料。骨料通过直接和间接作用对植生混凝土脱氨除磷效果产生重要影响。The effect of planting concrete on the removal of nitrogen and phosphorus and the effects on the removal of nitrogen and phosphorus of different aggregates were studied. Three different porous,zeolite,slogans and gravel,were used with their sizes of 25-30 mm.The experimental results showthat under the condition of keeping the concentration of ammonia nitrogen and total phosphorus in the influent 5.0,1.0 mg L,after 30 days,then the removal rate of ammonia nitrogen by zeolite,steel slag and gravel plant was 89.75%,72.22% and 70% respectively,moreover the total phosphorus elimination rate is 81%,77% and 68% respectively. The removal effect of ammonia nitrogen by zeolite was better than that of steel slag and gravel,and the removal of total phosphorus by steel slag concrete is superior to that of other two kinds of aggregates. Direct and indirect effects of aggregate produced important impact on the removal of ammonia and phosphorus of the planting concrete.

关 键 词：骨料 植生混凝土 脱氮除磷 

分 类 号：TU528.041[建筑科学—建筑技术科学]