摘要
选取空心菜(Ipomoea aquatica Forsk)、绿萝(Scindapsus aureus)、天南星(Pinellia pedatisecta Schott)(包括前期天南星和后期天南星)、金钻(Philodenron selloum Koch)、黄金葛(Epipremnum aureum)等6种植物作为试验材料,采用浮床种植方式进行水培种植,在静水条件下对富营养化水体中氮、磷去除动态及效率进行了比较研究。结果表明:(1)6种植物对氮、磷去除率的平均能力强弱为:空心菜>黄金葛>初期天南星>金钻>绿萝>后期天南星,其中空心菜对总氮(TN)、总磷(TP)、亚硝酸氮(NO2--N)、硝酸氮(NO3--N)、氨氮(NH4+-N)、正磷酸盐(PO43--P)的去除率依次为41.81%、54.92%、88.57%、73.67%、57.81%和85.83%;(2)6种植物的溶解氧DO回升率依次为:后期天南星>初期天南星>黄金葛>金钻>绿萝>空心菜,其中后期天南星的DO回升率为40.23%。综合考虑氮、磷去效率及DO回升率的效果,黄金葛和初期天南星可作为优选的生态浮床植物。
Mean purification ability and remove efficiency of nitrogen (N) and phosphorus (P) were investigated by using six plants with Ipomoea aquatica Forsk, Scindapsus aureus, Pinellia pedatisecta Schott (including earlier stage and later stage) , Philodenron sellourn Koch and Epipremnum aureum in the condition of static water. The results as the following: ( 1 ) the order of the removal efficiency of N and P was expressed as: I. aquatica Forsk〉P. pedatisecta Schott (later stage) 〉E. aureum〉P. selloum Koch 〉R pedatisecta Schott ( earlier stage ) 〉 S. aureus. The remove efficiency of total nitrogen ( TN ), total phosphorus (TP) , NO2- -N, NO 3-N, NH4+-N and PO43- -P was 41.81 %, 54.92%, 88.57%, 73.67%, 57.81% and 85.83%, respectively. (2) the order of the recovery rate of dissolved oxygen was expressed as: P. pedatisecta Schott (later stage) 〉P pedatisecta Schott (earlier stage) 〉E. aureum〉P, selloum Koch〉S. aureus〉I, aquatica Forsk. The recovery rate of dissolved oxygen was 40.23%. In conclusion, combined the results of the remove efficiency and recovery rate, E. aureum and P. pedatisecta Schott (earlier stage) could be chosen as the possible plants to purify water.
出处
《天津农学院学报》
CAS
2016年第3期15-19,共5页
Journal of Tianjin Agricultural University
基金
天津市科技计划项目“鲤鱼低氮高效饲料的开发与应用”(15ZXZYNC00070)
关键词
植物
净化水质
氮
磷去除率
DO回升率
plants
purify water
removal efficiency of N and P
recovery rate of DO