水培蔬菜对城市河道污水净化的研究  

Study on the purifying function of hydroponic vegetables to sewage in urban river

作　　者：李卫星[1,2] 李长菊[1] 熊作明[1] 阎伟 李章林 王洁 

机构地区：[1]扬州大学园艺与植物保护学院,江苏扬州225009 [2]西藏农牧学院,西藏林芝860000 [3]扬州市水利局,江苏扬州225009

出　　处：《扬州大学学报（农业与生命科学版）》2016年第3期120-126,共7页Journal of Yangzhou University：Agricultural and Life Science Edition

基　　金：江苏省水利科技项目(2014071)

摘　　要：通过水箱静态培养试验,探讨紫背天葵、生菜、茼蒿、水芹和红甜菜5种蔬菜对富营养化水体中总氮(TN)、总磷(TP)、氨氮(NH+4-N)、硝态氮(NO_3^--N)、化学需氧量(CODCr)、溶解氧(DO)、pH的净化效果。结果表明:5种蔬菜生长良好,试验前后生物量相对增长61.91%~364.29%,株高相对增长7.69%~157.17%,根长相对增长60.76%~274.73%;各试验组对污水净化效果显著,对污水中TN、NH+4-N、NO_3^--N、TP和CODCr的去除率分别为80.89%~93.41%、91.40%~94.72%、23.27%~54.72%、91.07%~97.96%和66.1%~84.75%;各试验组与对照组之间均达到显著差异(P<0.05),其中生菜和水芹在污水中生长旺盛,对TN、NH+4-N、NO_3^--N、TP和CODCr去除效果尤为显著,可作为城市河道去污人工浮床备选植物。The purification effect of TN,TP,NH4^＋-N,NO3^--N,CODCr,DO,pH from the entropic water by floating beds with Begonia fimbristipula Hance.,Var.ramosa Hort.,Chrysanthemum coronarium L.,Oenanthe javanica（Blume）DC.,Beta vulgaris.were investigated via static hydroponic test in water tank.Results showed that five species were in good growth condition.In addition,relative growth of biomass,plant height and root length were 61.91%-364.29%,7.69%-157.17% and 60.76%-274.73%,respectively.Each experimental group exhibited significant purification effect to waste water,and purification efficiency to TN,NH4^＋-N,NO3^--N,TP and CODCrin waste water were80.89%-93.41%,91.40%-94.72%,23.27%-54.72%,91.07%-97.96%,and 66.1%-84.75%,respectively.There were significant differences between the experimental group and control group.However,lettuce and water celery were in the best growth condition,and the eutrophication effect to waste water were the most distinct among tested vegetables.In conclusion,lettuce and water celery can be used as alternative plants in outdoor urban riverwater floating bed.

关 键 词：蔬菜 污水净化 城市河道 

分 类 号：S645[农业科学—蔬菜学] R123.3[农业科学—园艺学]