四川农业大学学报 ›› 2011, Vol. 29 ›› Issue (03): 397-401.doi: 10.3969/j.issn.1000-2650.2011.03.018

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橐吾(Ligularia sibirica)对畜禽废水的净化能力

张俊萍, 王应军, 邓仕槐   

  1. 四川农业大学资源环境学院, 四川 温江 611130
  • 收稿日期:2011-04-11 出版日期:2011-09-30 发布日期:2017-04-12
  • 通讯作者: 王应军(E-mail:wwyyjj1972@163.com) E-mail:wwyyjj1972@163.com
  • 基金资助:
    四川省教育厅重点项目(10ZA059)

Purification Effect of Ligularia sibirica on Livestock Wastewater

ZHANG Jun-ping, WANG Ying-jun, DENG Shi-huai   

  1. College of Resource and Environment, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
  • Received:2011-04-11 Online:2011-09-30 Published:2017-04-12

摘要: 首次选取橐吾(Ligularia sibirica)作为供试植物应用于人工湿地中,通过模拟人工湿地,研究橐吾人工湿地对畜禽废水的净化能力。结果表明:橐吾人工湿地对高浓度畜禽废水中总磷(TP)、总氮(TN)、化学需氧量(COD)和氨氮(NH4+-N)平均去除率分别达到92.73%、82.44%、82.78%和87.75%,对中浓度畜禽废水中TP、TN、COD和NH4+-N平均去除率也分别达到93.50%、88.79%、82.56%和96.07%;另外,橐吾更适用于主要污染物为有机物的污水;在氮磷的吸收方面,橐吾叶片氮磷含量均显著高于叶柄和根,且在3种处理下均表现主动吸收氮磷;根际基质脲酶活性与TN去除率呈显著正相关,磷酸酶活性与TP去除率呈正相关但不显著,可将基质脲酶活性作为评价TN去除率的指标;橐吾是很有潜力的人工湿地植物。

关键词: 橐吾, 人工湿地, 氮磷积累, 基质酶

Abstract: By selecting Ligularia sibirica which has not been used in wetland as the test plant,and constructing simulating wetland,this study researched the purification effect of the Ligularia sibirica wetland on livestock wastewater.The results showed that the average removal rate of Ligularia sibirica wetland to TP,TN,COD and NH4+-N from the livestock wastewater with high concentration reached 92.73%,82.44%,82.78% and 87.75% respectively,and to those of livestock wastewater with the middle concentration,it also reached 93.50%,88.79%,82.56% and 96.07% respectively.In addition,Ligularia sibirica is more applicable to wastewater that has organic contaminant as the main pollutants.As for the absorption of nitrogen and phosphorus,the contents of N and P in Ligularia sibirica leaves were significantly higher than those in the petioles and roots.Meanwhile,Ligularia sibirica leaves showed initiative absorption of nitrogen and phosphorus in the three treatments.Rhizosphere urease activity of substrate had a significant positive correlation with the removal of TN,and phosphatase activity had a positive but not significant correlation with the removal of TP.So urease activity of substrate can be used as an evaluation index of removal rate of TN,and Ligularia sibirica can be used as a potential wetland plants.

Key words: Ligularia sibirica, wetland, accumulation of nitrogen and phosphorus, substrate enzyme

中图分类号: 

  • X173