| CaO_2对控制河道底泥磷释放效果的研究 |
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| 引用本文： | 张丹.CaO_2对控制河道底泥磷释放效果的研究[J].环境工程,2012(Z2):532-534. |
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| 作者姓名： | 张丹 |
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| 作者单位： | 河北省城乡规划设计研究院 |
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| 摘 要： | 在实验室模拟条件下,投加CaO2对受污染河道底泥进行原位修复,并通过底泥磷形态的变化进行具体分析,结果表明:将CaO2散点注射到底泥表层的修复效果最好,时效性最持久。同时,分析水体的ORP、DO等指标,结合底泥的磷形态和Fe3+/Fe2+比值的变化,说明CaO2的缓慢释氧可持续为微生物新陈代谢提供氧气,可作为微生物激活剂用来修复受污染的河道底泥。
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| 关 键 词： | 底泥 过氧化钙 磷形态 修复 |
RESEARCH ON THE EFFECT OF CALCIUM PEROXIDE ON CONTROL OF SEDIMENT PHOSPHORUS RELEASE |
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| Zhang Dan.RESEARCH ON THE EFFECT OF CALCIUM PEROXIDE ON CONTROL OF SEDIMENT PHOSPHORUS RELEASE[J].Environmental Engineering,2012(Z2):532-534. |
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| Authors: | Zhang Dan |
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| Institution: | Zhang Dan(Urban and Rural Design Institute of Hebei Province,Shijiazhuang 050021,China) |
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| Abstract: | Based on laboratory simulated test,CaO2 is applied to repair sediment of polluted urban river,it is analysed the transformation among different phosphorus fractions.The results shows that injecting CaO2 into the surface sediment leads to the best remedy result and the longest effect.At the same time,it is also analysed the ORP and DO of the water,the Fe3+/Fe2+ and phosphorus fractions of the sediment.Which shows that CaO2 can release oxygen for the microbial metabolism,and CaO2 can be used to repair contaminated river sediment. |
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| Keywords: | sediment calcium peroxide phosphorus fractions remedy |
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