| Cite this article: | 王志超,吕伟祥,李卫平,等.复合生态净化系统阻控入湖水体污染物效果分析[J].灌溉排水学报,0,():-. |
| WANG Zhichao,LV Weixiang,LI Weiping,et al.复合生态净化系统阻控入湖水体污染物效果分析[J].灌溉排水学报,0,():-. |
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| DOI： |
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| Analysis on interception effect by composite ecological purification system for contaminant into lake |
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WANG Zhichao1,2, LV Weixiang1,2, LI Weiping1,2, YU Linghong1,2, YANG Wenhuan1,2, WANG Zhan1,2, WANG Gaoqiang1,2
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1.School of Energy and Environment,Inner Mongolia University of Science and Technology,Baotou Inner Mongolia 014010;2.China
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| Abstract: |
| 【Objective】For ameliorating the defect of single stage constructed wetland system which was limited by oxygen environment, and remedying the faultiness in the multi stage series constructed wetland system that large amount of matrix was filled in the system and it was easy to be blocked in the control measures of urban landscape lake pollutants.【Method】The aerobic anoxic composite ecological purification system have constructed on the basis of micro aerated floating bed and factitious single stage wetland system in the study. The removal effects of COD, TN, NH4+-N and TP of water which simulated inflow of lake have been compared under the condition of HRT was 2 days and the running was maintained for 24 days from the control group, constructed wetland system, composite floating bed system and composite ecological purification system.【Result】The results showed that the removal efficiency of COD, NH4+-N and TP in control group, constructed wetland system, composite floating bed system and composite ecological purification system have significantly different（p<0.05）.The average removal rates of COD in each system were 13.59%, 35.02%, 45.30% and 70.71% respectively, the average removal rates of NH4+-N were 11.22%, 31.14%, 85.89% and 80.59%, and the data of TP were 2.77%, 57.84%, 37.51% and 74.60% respectively. There was no significant difference (p= 0.474) in the removal effect of TN between constructed wetland system and composite floating bed system, but the data have a significant difference (p<0.05)compared with the control group and composite ecological purification system. And the removal effects of TN in each system were 30.98%, 32.75%, 8.13% and 60.07% respectively.【Conclusion】The effluent from the system can meet the Class V water pollution standard of Surface water environmental quality standard (GB 3838-2002) in the later stage of operation. The composite ecological purification technology has the advantages of a stable operation effect, excellent impact load resistance, and it can ameliorate the inhibition of denitrification and the release of phosphorus pollutants in the composite floating bed system. The results can provide a reference for the ecological control of exogenous pollutants in urban landscape lakes. |
| Key words: Compound floating bed system；Factitious stage wetland system；Compound ecological purification system；Inferior class V；Contaminant interception. |
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