复合生态净化系统阻控入湖水体污染物效果分析

王志超; 吕伟祥; 李卫平; 于玲红; 杨文焕; 王  战; 王高强

引用本文:	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,():-.

【打印本页】【下载PDF全文】【查看/发表评论】【EndNote】【RefMan】【BibTex】

过刊浏览高级检索

本文已被：浏览 2418次下载 0次
分享到：微信更多字体:加大+\|默认\|缩小-
复合生态净化系统阻控入湖水体污染物效果分析
王志超,吕伟祥,李卫平,等
内蒙古科技大学能源与环境学院

摘要:

【目的】为进一步解决城市景观湖泊入湖水体污染物阻控措施中单级人工湿地系统受氧环境限制、多级串联人工湿地系统基质填充量大、易堵塞的问题。【方法】在微曝气复合浮床系统、单级人工湿地系统的基础上构建好氧-缺氧型复合生态净化系统。在HRT均设定为2 d，连续运行24 d的情况下，对比研究了对照组、人工湿地系统、复合浮床系统、复合生态净化系统对模拟入湖水体COD、TN、NH4+-N和TP的去除效果。【结果】研究结果表明，对照组、人工湿地系统、复合浮床系统、复合生态净化系统对COD、NH4+-N、TP的去除效果存在显著差异（p<0.05），各系统对COD的平均去除率分别为13.59%、35.02%、45.30%、70.71%，对NH4+-N的平均去除率分别为11.22%、31.14%、85.89%、80.59%，对TP的平均去除率分别为2.77%、57.84%、37.51%、74.60%；人工湿地系统、复合浮床系统对TN去除效果差异不显著（p=0.474），但与对照组、复合生态净化系统存在显著差异（p<0.05），各系统对TN的平均去除率分别为30.98%、32.75%、8.13%、60.07%。【结论】复合生态净化技术后期各项出水指标可以达到《地表水环境质量标准》(GB 3838—2002)Ⅴ类水及以上标准，运行相对稳定，抗冲击负荷较强，且可以改善复合浮床系统中反硝化能力受到抑制及沉积磷污染物反释状况。该研究结果可为生态阻控城市景观湖泊外源污染物提供参考。

关键词: 复合浮床系统；人工湿地系统；复合生态净化系统；劣Ⅴ类；污染物阻控

DOI：

分类号:X524

基金项目:内蒙古自治区自然科学基金项目资助(NO.2019LH05011)；内蒙古自治区高等学校科学研究项目(NO.NJZY19132)；内蒙古自治区科技创新引导项目(NO.KCBJ2018033)；内蒙古自然科学基金项目(NO.2018LH04002)；包头市南海湿地管理处科研项目(NO.NH2018003)。

Analysis on interception effect by composite ecological purification system for contaminant into lake

WANG Zhichao^1,2, LV Weixiang^1,2, LI Weiping^1,2, YU Linghong^1,2, YANG Wenhuan^1,2, WANG Zhan^1,2, WANG Gaoqiang^1,2

1.School of Energy and Environment,Inner Mongolia University of Science and Technology,Baotou Inner Mongolia 014010;2.China

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.