人工浮床运用于入湖河流原位净化模拟研究
Simulation study on in situ purification of lake inlets with artificial floating bed
查看参考文献22篇
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文摘
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2009年11月至次年7月，在太滆运河滆湖入运河段开展黑麦草与美人蕉、水芹菜分别搭配混种的人工浮床对河流水体原位净化动态模拟研究．结果表明该人工浮床能够持续净化流动水体．人工浮床对TN去除率为5%35%，TP去除率为5%40%，COD_(Mn)去除率为5%20%．在温度相对较高、浮床植物迅速生长的情况下浮床去除率较高．试验中水体交换时间对人工浮床去除率的影响有季节性的差异．人工浮床的去除负荷随温度和植物生长的变化趋势与去除率变化趋势基本同步．不过无论在哪个季节去除负荷都随着水体交换时间的变短而增加．人工浮床的净化效果主要表现在无论是冬季还是在春夏季都能够明显去除水体中悬浮物，增加水体透明度，进而去除颗粒态营养物质．浮床在夏季对可溶性磷和溶解性氮中的铵态氮具有明显的去除作用．硝酸盐氮和亚硝酸盐氮受浮床影响较小．人工浮床通过改变水体理化环境作用于营养盐的循环值得关注． |
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其他语种文摘
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An in situ simulation study about river purification was carried out in Taige Canal from November 2009 to July 2010， using artificial floating beds which were planted by plants Canna generalis，Oenanthe clecumbens and Lolium perenne．The research showed that the artificial floating bed can purify the river water uninterruptedly．The removal rates are 5%35%，5%40%and 5%20%for TN，TP and COD_(Mn)，respectively．The removal effects were better under the conditions of high temperature and the rapid growth of floating plants．Water exchange time in different seasons influenced the removal rates differently．Trend of removal loading with different temperatures and growing stages was similar to removal rates．However，the removal loading would increase with decrease of the water exchange time in any seasons．The main purification effects of artificial floating bed can remove the suspended solid and increase the Secchi depth，so that the particulate nutrient can be removed．In summer，it can removed dissolved phosphorus and ammonia nitrogen significantly．The floating bed had only few effects on the nitrate and nitrite nitrogen．Effects of artificial floating bed on the cycles of nutrients by the changes of physical and chemical environment deserve to pay more attentions． |
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来源
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湖泊科学
,2011,23(5):708-718 【核心库】
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DOI
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10.18307/2011.0507
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关键词
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人工浮床
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原位净化
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去除率
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去除负荷
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动态试验
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地址
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中国科学院水生生物研究所, 武汉, 430072
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1003-5427 |
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基金
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中国科学院水生生物研究所淡水生态与生物技术国家重点实验室基金
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国家863计划
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国家973计划
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文献收藏号
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CSCD:4308602
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