垂直潜流人工湿地中ORP、DO和pH与脱氮过程的关系  

The Relationship Between the ORP、DO、pH and the Denitrification Process in Vertical Subsurface Flow Wetland

作　　者：王泉[1] 吴献花[1] 吴珊[1] 李利瑞[1] 余祥润[1] 

机构地区：[1]玉溪师范学院玉溪高原湖泊生态环境研究中心,云南玉溪653100

出　　处：《玉溪师范学院学报》2011年第12期24-27,共4页Journal of Yuxi Normal University

基　　金：国家水体污染控制与治理科技重大专项;编号:2009ZX07102-002-04;云南省自然科学基金项目;编号:2006C0040Q

摘　　要：通过建立垂直潜流人工湿地实验装置,研究ORP、DO、pH与脱氮过程之间的关系.结果表明:系统内硝化作用强于反硝化作用,硝化作用耗氧使DO浓度从进水到出水呈现下降的趋势.石灰石填料释放碱度以及硝化作用消耗碱度两者之间的作用会影响系统的pH值.在实验系统中,从进水到出水,TN、TP逐渐降低时,ORP显示为上升的趋势.A vertical subsurface flow wetland(VSFW) was constructed to study the relationship between ORP、DO、pH with the process of denitrification.The results show that nitrification is stronger than denitrification within the system;oxygen consumption due to the nitrification process makes the concentration of DO in water descend from the inlet to the outlet;alkalinity resulting from the interaction between denitrification and limestone filling leads to a decrease in pH,and with the gradual decrease in TN and TP from the inlet to the outlet,ORP shows a trend of increase in the VSFW system.

关 键 词：垂直潜流人工湿地 溶解氧 氧化还原电位 PH 硝化作用 反硝化作用 

分 类 号：G65[文化科学—教育学]