不同季节栽种美人蕉对污水脱氮除磷的研究  

Study on nitrogen and phosphorus removal from sewage by planting Canna indica in different seasons

作　　者：王伟亚 张静 侯红勋 范信生 WANG Weiya;ZHANG Jing;HOU Hongxun;FAN Xinsheng(CECEP Guozhen Environmental Technoloy Co.Ltd.,Hefei 230088,China)

机构地区：[1]中节能国祯环保科技股份有限公司,安徽合肥230088

出　　处：《环境保护科学》2021年第2期92-96,共5页Environmental Protection Science

基　　金：国家水体污染控制与治理科技重大专项(2017ZX07602-001-002)。

摘　　要：采用美人蕉浮床方式,进行了不同季节同一生长阶段美人蕉在高、低浓度污水中生长和脱氮除磷的实验研究。4个实验期内(各28 d),美人蕉均能正常生长,夏季生长较其他季节旺盛。TN和TP去除量存在显著差异,各季节TN和TP去除率有显著相关性,夏季高浓度TN和TP的单位面积去除量分别为24.86和1.45 g/m^(2),去除率分别为77.55%和53.60%,均是冬季的7~8倍。同样受季节变化影响,低浓度去除效果冬季最低,春夏季最高,TN去除率为26.50%~90.36%,TP为16.22%~85.58%。在南方,美人蕉浮床四季均能用于污水处理,春夏季节较秋冬季节处理效果更好,且适合于高浓度污水处理。The growth status and the nitrogen and phosphorus removal efficiencies by the floating-bed of Canna indica with the same growth stage were experimentally studied in different seasons with different concentrations of the sewage.During the four experiment periods(28 d in each period),Canna indica all grew well.Meanwhile,it was more vigorous in summer than in other seasons.There was a significant difference between TN and TP removal and also a significant correlation among TN and TP removal rates in each season.The removal results of TN and TP with a high concentration in summer were 24.86 g/m2 and 1.45 g/m^(2),indicating that the removal rates were 77.55% and 53.60%,respectively,which was 7~8 times of that in winter.Similarly,for the low concentration sewage,the higher removal efficiency appeared in spring and summer,while the removal efficiency was lower in winter.The removal rates of TN and TP were 26.50%~90.36% and 16.22%~85.58% respectively.In the southern areas,Canna indica floating-bed could treat the sewage for all seasons.There is a better treatment performance in spring and summer,and it is suitable for the high concentration sewage.

关 键 词：美人蕉浮床 不同季节 栽种 TN TP 生长情况 南方城市 

分 类 号：X703.1[环境科学与工程—环境工程]