摘要
对凤眼莲生态型河道进行室内模型试验,以3种(A、B和C)不同种植圈形式将其框束于流动水体中,分析不同条件下凤眼莲的水质净化效果。结果表明,凤眼莲净化效果明显,其用于生态型河道建设可行,但需考虑营养所需,并于适合时间打捞,以防有机体腐烂造成二次污染。从流体力学角度分析,凤眼莲的种植改变了原先水体结构,3种种植方式中C对水流影响最大,不利于凤眼莲净化效果的体现,而A和B方式相比之下较适宜。
The purification by Eichhornia crassipe in ecological watercourse was examined in indoor laboratory. Circles in three different forms were used to enclose the Eichhornia crassipe. Water purifying efficiencies of Eichhornia crassipe were analyzed in different conditions. The results indicated that the water purifying efficiency Eichhornia crassipe was great and it was a viable hydrophyte in ecological watercourse, but the nutrition should be considered, If the nutrition was not enough for water hyacinth＇s absorption, the Eichhornis crassipe would perish after some days, From the analysis of hydrodynamics, when the frames were disposed and Eichhornia crassipe were planted in channel, flow influence on flow＇s configuration. Model A and B had a in this channel was influenced. Model C had the most little affection, which were suitable for water purifying.
出处
《化学工业与工程》
CAS
2008年第3期242-247,共6页
Chemical Industry and Engineering
关键词
凤眼莲
生态型河道
净化
Eichhornia crassipe
ecological watercourse
purification
