生态浮床-简易湿地组合系统对富营养化水体净化效果研究

目的]研究生态浮床-简易湿地处理系统对富营养化水体的净化效果,以期为进一步开展人工湿地和生态浮床技术相组合的研究及污水、富营养化水体的生态修复提供科学的理论依据。方法]将生态浮床-简易湿地组合成复合的生态浮床-简易湿地处理系统,通过室内模型试验和在该系统内种植黑麦草,研究该组合系统对富营养化水体中TN、TP、CODMn、BOD5、NH4-N等指标的净化效果。结果]在冬季,生态浮床-简易湿地组合系统处理效果相当好,其对富营养化水体中TN、TP、CODMn、BOD5、NH4-N的平均去除率分别为53.5%、74.3%、41.8%、65.5%和37.8%以上。结论]生态浮床-简易湿地组合系统对富营养化水体的净化效果明显较单一的生态浮床或简易人工湿地系统要好。

Research on the Efficiency of the Integrated System of Ecological Floating Bed and Facility Wetland on the Purification to Eutrophic Water Body

Objective] The theoretical basis of the future development of the integrated system of ecological floating bed and facility wetland and the ecological restoration of the polluted and eutrophic water body were provided.Method] The integrated system of ecological floating bed and facility wetland was constructed and under the indoor experimental condition,in which the lolium were planted,the efficiency of the system on the purification of the index such as TN,TP,CODMn,BOD5 and NH4-N in the eutrophic water body was researched.Results] The results showed that the integrated systems had better effect on the removal of TN,TP,CODMn,BOD5 and NH4-N.The average removal rates of TN,TP,CODMn,BOD5 and NH4-N were over 53.5%,74.3%,41.8%,65.5%,and 37.8%,respectively.Conclusion] The purification efficiency of the integrated system on the purification of water body was significantly better than that of the ecological floating bed or the facility constructed wetland.