| 扬水造流技术控藻机制研究 |
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| 引用本文： | 张小璐,何圣兵,陈雪初,杨峰峰,戴鼎立,孔海南.扬水造流技术控藻机制研究[J].中国环境科学,2011,31(12):2058-2064. |
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| 作者姓名： | 张小璐 何圣兵 陈雪初 杨峰峰 戴鼎立 孔海南 |
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| 作者单位： | 上海交通大学环境科学与工程学院,上海,200240 |
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| 基金项目： | 国家水体污染控制与治理重大专项，温州市科技计划项目 |
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| 摘 要： | 围绕扬水造流技术的两个关键控藻参数Vmix(水体垂直混合速率)和Emix:Eu(混合深度与真光层深度之比),分别在实验室和现场围隔中开展模拟实验探讨藻类的时空分布.结果表明,实验开始20h后藻类垂直分布趋向动态平衡,Vmix31.08cm/min时2h内藻类未出现浮聚现象,Vmix31.35cm/min则能够长期(320h)遏制表面水华;根据20h平衡分布变异系数对光照和混合组合条件下的控藻效果进行了分类.藻类生消实验显示衰亡速率常数K与Emix:Eu呈正相关(R2=0.85,P<0.05,n=5),表明增大Emix:Eu在一定程度上有利于促进藻类衰亡.现场围隔实验结果表明,Emix:Eu对藻类生长消亡的显著影响,并认为在自然条件下,扬水造流技术要发挥控藻效用,Emix:Eu必须33:1.
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| 关 键 词： | 扬水造流 控藻 光照 混合 |
| 收稿时间： | 2011-02-27; |
Studies on algal control mechanism of air circulation technology |
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| ZHANG Xiao-lu,HE Sheng-bing,CHEN Xue-chu,YANG Feng-feng,DAI Ding-li,KONG Hai-nan.Studies on algal control mechanism of air circulation technology[J].China Environmental Science,2011,31(12):2058-2064. |
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| Authors: | ZHANG Xiao-lu HE Sheng-bing CHEN Xue-chu YANG Feng-feng DAI Ding-li KONG Hai-nan |
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| Institution: | ZHANG Xiao-lu,HE Sheng-bing*,CHEN Xue-chu,YANG Feng-feng,DAI Ding-li,KONG Hai-nan(School of Environmental Science and Engineering,Shanghai Jiaotong University,Shanghai 200240,China). |
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| Abstract: | In order to discuss spatial and temporal distributions of blue-green algae in limnetic water with optical depth and vertical mixing,laboratory and field experiments of air circulation process were conducted,focusing on two key parameters: Emix:Eu-ratio of mixing depth and euphoric zoon depth,and Vmix-vertical mixing rate.Dynamic equilibrium of algal vertical distribution appeared beyond 20h.Within 2h,algal bloom cannot develop at water surface with Vmix 1.08 cm/min;while the same situation could last for ab... |
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| Keywords: | air circulation algal control lighting mixing |
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