CAJ | 학술논문

本试验研究了3种浮萍（芜萍、少根紫萍、青萍）对3种不同稀释倍数的猪场厌氧废水中的N、P净化效果，结果显示：污水中TN、TP浓度随浮萍处理时间增加而持续降低；少根紫萍对N、P净化率都超过了75%，净化能力优于芜萍和青萍。综合考虑，少根紫萍可作为四川盆地内净化养殖废水中氮、磷的优化品种。
본시험연구료3충부평（무평、소근자평、청평）대3충불동희석배수적저장염양폐수중적N、P정화효과，결과현시：오수중TN、TP농도수부평처리시간증가이지속강저；소근자평대N、P정화솔도초과료75%，정화능력우우무평화청평。종합고필，소근자평가작위사천분지내정화양식폐수중담、린적우화품충。
In the experiment, we studied the three kinds of duckweed′s purification effect on N,P which from different dilutions anaerobic wastewater. The results showed that the TN,TP con-centration decreased continuously with the action time extending by duckweed. The purification rate of Spirodela oligorrhiza was more than 75%, its purifi cation ability was better than that of Wolffia arrhiza and Lemna aequinoctialis. This results indicated that spirodela oligorrhiza was the optimized duckweed which could be used to purify P and N from the breeding wastewater in Sichuan basin.