C/N及氮源形式对潜流式人工湿地脱氮效果的影响  

Influence of C/N and nitrogen source type on denitrification effectin the subsurface flow constructed wetland

作　　者：连小莹[1] 李先宁[1] 谢祥峰[1] 金秋[1] 

机构地区：[1]东南大学环境工程系,江苏南京210096

出　　处：《电力环境保护》2008年第2期27-29,共3页Electric Power Environmental Protection

基　　金：江苏省自然科学基金(BK2004075)

摘　　要：研究了C/N及氮源形式对潜流式人工湿地脱氮效果的影响。结果表明,当潜流式人工湿地进水C/N由2.0增大到6.0时,总氮的去除效率由45%提高到70%;而当进水C/N由6.0增大到14.0时,总氮的去除效率仅由70%提高到85%,提高的幅度相对较小。潜流式人工湿地对总氮的去除效率随NH4+-N/TN的增加而降低,随着NO3--N/TN的增加而提高。Influence of ratio of carbon to nitrogen （C/N） and nitrogen source on denitrification effect in the subsurface constructed wetland were researched, The results showed that when C/N in entering water changed from 2,0 to 6.0 ,the total nitrogen removal rate changed from 45% to 70% ,while C/N changed from 6.0 to 14.0, the total nitrogen removal rate changed from 70% to 85%, The total nitrogen removal rate reduced when NH^＋ - N/TN increased,while the total nitrogen removal rate increased when NO3^ - N/TN increased,

关 键 词：潜流式人工湿地 C/N 氮源 硝化/反硝化 

分 类 号：X703.1[环境科学与工程—环境工程]