净水技术2013，Vol.32Issue(4)：29-34,6.
红土焙烧颗粒造孔及其水处理除磷效果
Pore-Induced Granulation of Red Soil Calcination and Its Effect of Phosphorus Removal in Water Treatment
摘要
Abstract
Substrate was considered a key factor for phosphorus (P) removal in constructed wetlands.Red soil,mostly in powder form,with wide distribution in Lake Erhai basin was granulated in this paper.Pore-inducer (starch) percentage and calcining parameters were optimized.Dynamics and isothermal adsorption processes were analyzed and fitted.Effect of pH,concentration of organic matter (indicated by glucose) on P adsorption process was also studied.The results show that under the condition of 1 mg/L and 5 mg/L initial P concentration,P adsorption for optimized red soil granulations reaches equilibrium in 32 h.The largest P adsorption amount of pore induced granulation reaches 13.3 mg/g,and the largest P adsorption amount of pure red soil granulations reaches 9.6 mg/g.Both pH and organic concentration have stimulative and prohibitive effects for P adsorption and red soil granulations.关键词
红土/颗粒造孔/除磷/焙烧/人工湿地Key words
red soil/pore-induced granulation/phosphorus removal/calcination constructed wetland分类
资源环境引用本文复制引用
叶利升,王欣泽,李亚红,孔海南..红土焙烧颗粒造孔及其水处理除磷效果[J].净水技术,2013,32(4):29-34,6.基金项目
国家重大水专项洱海项目(2009ZX07105003-03) （2009ZX07105003-03）
