自动增氧型人工湿地对废水中COD的去除效果  

Study on the COD Removal Efficiency of Self-aeration Artificial Wetlands

作　　者：夏红霞[1] 徐东东[1] 徐墁泽 罗小荣[1] 朱启红[1] 李强[1] 

机构地区：[1]重庆市环境材料与修复技术重点实验室/重庆文理学院水环境修复重点实验室,重庆402168

出　　处：《湖北农业科学》2016年第1期51-53,58,共4页Hubei Agricultural Sciences

基　　金：重庆市教育委员会项目(KJ121215;KJ131207);重庆市自然科学基金项目(cstc2013jcyj A20024);重庆市文理学院大学生创新创业训练计划项目(2013001)

摘　　要：针对常规人工湿地中溶解氧不足的问题,采用页岩空心砖构建自动增氧型人工湿地系统,研究构建系统对废水COD的净化效果。结果表明,自动增氧型湿地内的DO比人工强化曝气型湿地高0.1 mg/L左右,COD去除率达到85%以上,比人工曝气型湿地高2%左右。这说明构建的自动增氧系统可提高湿地系统内部供氧能力,提高湿地系统对废水COD的净化效率。Aimed at the issue of dissolved oxygen （DO） concentration insufficiency in conventional artificial wetlands, shale hollow bricks were adopted to build self-aeration artificial wetland system, for studying its removal efficiency of waste water COD. The experimental results indicated that DO concentration in self-aeration artificial wetland system is about 0.1 mg/L higher than artificial enhanced aeration wetland system, and COD removal rate of self-aeration artificial wetland system is more than 85%, about 2% higher than artificial enhanced aeration wetland system. It presented that the self-aeration wetland system can increase its internal oxygen supply capacity and the purification efficiency of wetland system to waste water COD.

关 键 词：自动增氧型人工湿地 DO COD 废水处理 人工曝气 

分 类 号：X703[环境科学与工程—环境工程] X173