摘要
分别以芦苇、美人蕉和薄荷为植被,构建潜流人工湿地植物床,研究这3种植物对中水中的氮、磷和COD的净化效果,结果表明:①芦苇组对氨氮的去除效果最好,去除率最高可达85.43%,芦苇组和美人蕉组对硝酸氮的平均去除率(各测定时间的平均值,下同)都大于薄荷组和对照组,对总氮的平均去除率表现为芦苇组(76.30%)、美人蕉组(76.19%)、薄荷组(61.60%)、对照组(46.99%)依次减小;②薄荷组对总磷和活性磷的平均去除率分别为51.11%、71.89%,是3个试验组中去除率最高的,其次是美人蕉组;③3种植物对COD的去除效果相近,都大于对照组,其中美人蕉组的去除率最高,最高可达77.76%。
To analysis the removal effects of three plants on nitrogen, phosphorus and COD in reclaimed water, reeds （Phragmites australis）, canna （Canna indica）, and coleus （Mentha haplocalyx） was planted in a subsurface flow constructed wetland. The results showed that： （1）The removal effect of reeds on ammonia nitrogen was the best, and the removal rate can reach 85.43%. The removal rates of reeds and canna on nitrate-nitrogen were higher than that of coleus and control group. The TN removal rate was 76.30% with reeds, 76.19% with canna, 61.60 % with coleus, and 46.99% with contrast group, respectively. （2）The average removal rate of coleus on total phosphorus and active phosphorus were 51.11% and 71.89%, respectively, better than that of canna and reed. （3）The COD removal efficiency of the three test groups were similar and higher than that of the control group. The removal efficiency of canna group was best, which could reach 77.76%.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第4期423-428,共6页
Journal of Hunan Agricultural University(Natural Sciences)
基金
山西省科技攻关项目(20090311076–1)
山西省教育厅项目(200811009)
关键词
人工湿地植物
芦苇
美人蕉
薄荷
中水
净化
constructed wetland plant
Phragmites australis
Canna indica
Mentha haplocalyx
reclaimed water
purification
