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渗滤特性
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  leaching characteristics
     Analysis on the contents and leaching characteristics of heavy metals in MSWI fly ash
     垃圾焚烧飞灰重金属含量与渗滤特性分析
短句来源
     . After the influencing factors of heavy-metal leaching are grasped, leaching characteristics are studied at different PH value, L/S ratio and leaching time.
     在掌握了影响飞灰中重金属渗滤的因素后,研究了飞灰在不同PH值、液固比(L/S)和浸出时间这三个最重要的影响因素时重金属的渗滤特性
短句来源
     By artificial simulation of rainfall and determining technology of ICP-MX spectrometer,we studied the leaching characteristics and environmental effects of fly-ash turf medium under different rainfall intensity,duration and coverage condition.
     利用人工模拟降雨装置,结合ICP-MX质谱分析测试技术,深入探讨不同降雨强度、降雨时段和覆盖条件下,粉煤灰草坪基质渗滤特性及其环境效应。
短句来源
     Base on it, leaching characteristics of solidified products are studied and analysed in different mixed proportions of fly ash and cement and solidified time.
     在此基础上,研究飞灰与水泥在不同的掺和比例和固化时间时重金属的渗滤特性,并对此加以分析;
短句来源
     The leaching characteristics of solidified products are researched in different PH value and L/S ratio. As a result, a conclusion is reached that heavy metals in solidified products never leach in appropriate PH value and L/S ratio.
     同时研究了飞灰与水泥混合后的固化体在不同PH值和液固比(L/S)时重金属的渗滤特性,得出了固化体中的重金属都不渗滤的PH值和液固比。
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  percolation properties
     Since the aggressive quantity of cement particles and filtrate is limited by the percolation properties of inner and outer mud cakes and rock core, the damage of cement slurry to formation is therefore decresed.
     泥浆形成的内外泥饼及岩心的渗滤特性,限制了水泥颗粒及滤液进入地层的数量,降低了水泥浆对地层的损害。
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  “渗滤特性”译为未确定词的双语例句
     Characteristic of micromolecular sugar in yeast using continuous diafiltration
     酵母中小分子糖渗滤特性研究
短句来源
     Osmosis and Purifying Effect of Substrates in Constructed Wetland
     人工湿地基质渗滤特性及净化污水效果
短句来源
     The Leaching Behavior of Heavy Metals from MSWI Fly Ash and Exprimental Study on Solidification of MSWI Fly Ash
     垃圾焚烧飞灰中重金属的渗滤特性及飞灰固化处理的实验研究
短句来源
     Heavy metals content in fly ashes increased with size decreasing of fly ashes. The leaching characteristic of Cr, Cd, Cu, Zn slight increased as size decreasing of fly ashes.
     布袋飞灰中Cr、Cd、Cu、Zn的渗滤特性随颗粒尺寸的减少有增加趋势,而其余重金属的渗滤与颗粒尺寸没有明显关系。
短句来源
     The experiment results showed that the leaching rate of heavy metals of cement stabiliazation of MSW fly ashes were very lower, especially for Cd, Pb, Zn.
     飞灰的水泥固定产物的渗滤特性表明水泥对重金属的固化效果是很好的,尤其是对Cd、Pb、Zn的效果明显。
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  leaching characteristics
In this study, we evaluated the leaching characteristics and termite resistance of wood treated with a newly developed QAC compound didecyldimethylammonium tetrafluoroborate (DBF) in comparison with commercial DDAC, another QAC compound.
      
Small wood specimens were coated to restrict preservative movement to one direction, then treated with CCA and immersed in water to evaluate unidirectional leaching characteristics.
      
Chemical composition and leaching characteristics of granules made of wood ash and dolomite
      
The leaching characteristics of annealed clay enriched with heavy metals (5?wt% PbO, CuO, V2O5) were compared with the mineral phase composition.
      
Leaching characteristics of ash from the May 18, 1980, eruption of Mount St.
      
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  percolation properties
The relations proposed for the relative phase permeabilities generalize those obtained earlier for media with transversely-isotropic and orthotropic percolation properties [1, 2] which can now be obtained as a particular case.
      
A laboratory measurement technique for finding the percolation properties and determining the absolute and phase permeabilities for media with different types of anisotropy is discussed.
      
Computer Simulation of Porous Electrodes with Immobilized Enzymes: The Percolation Properties of Multicomponent Structures
      
Since such a system possesses percolation properties the above results have been applied to the description of the charging process after a stepwise change of the applied voltage.
      
The percolation properties of two-component (a mixture of dispersed particles of the substrate and the enzyme) and three-component (a carrier of a gas reactant is added) models of a porous electrode are investigated.
      
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On the basis of the hole-buttom model experiment, this paper studies the damage of mud and cement slurry to foemation. The study shows that the damage of mud is more serious than that of cement slurry. Since the aggressive quantity of cement particles and filtrate is limited by the percolation properties of inner and outer mud cakes and rock core, the damage of cement slurry to formation is therefore decresed. The damage in the area 122 cm inside the wellface is resulted mainly from plugging of grain, while...

On the basis of the hole-buttom model experiment, this paper studies the damage of mud and cement slurry to foemation. The study shows that the damage of mud is more serious than that of cement slurry. Since the aggressive quantity of cement particles and filtrate is limited by the percolation properties of inner and outer mud cakes and rock core, the damage of cement slurry to formation is therefore decresed. The damage in the area 122 cm inside the wellface is resulted mainly from plugging of grain, while the damage to the formation 2 cm away from the wellface is resulted from the precipitates of filtrate of cement slurry. This paper also analyzes the pollution depth, the filtrate composition, the quantity of precipitates, and the separation sequence.

本文是在模拟井下实验的基础上,研究了泥浆与水泥浆对地层的损害问题。研究表明泥浆对地层的损害比水泥浆严重得多。泥浆形成的内外泥饼及岩心的渗滤特性,限制了水泥颗粒及滤液进入地层的数量,降低了水泥浆对地层的损害。在井壁1~2cm内,主要是水泥颗粒堵塞造成的损害,而2cm以外的地层则是水泥浆滤液中的沉淀物造成的损害。文章还深入地分析了水泥浆的污染深度,滤液中的成分,沉淀物的数量及析出的先后次序等问题。

TCLP experiment was used to study the relationships between initial pH value, liquid/solid ratio and leaching characteristics of heavy metals in a fly ash sample from a coal and MSW co-firing fluidized bed incinerator. when less then initial pH=6, the pH value after TCLP increased quickly, when more than initial pH=6, the pH value after TCLP increased very slightly. thus heavy metals in fly ash seem to leach easily in acidic condition. The pH value after TCLP decreased with L/S increasing, but heavy metals...

TCLP experiment was used to study the relationships between initial pH value, liquid/solid ratio and leaching characteristics of heavy metals in a fly ash sample from a coal and MSW co-firing fluidized bed incinerator. when less then initial pH=6, the pH value after TCLP increased quickly, when more than initial pH=6, the pH value after TCLP increased very slightly. thus heavy metals in fly ash seem to leach easily in acidic condition. The pH value after TCLP decreased with L/S increasing, but heavy metals contents increased till saturation.Thus L/S ratio is another improtant factor which affects the leaching of heavy metals.

对某煤和垃圾混烧流化床焚烧炉的一种灰样品进行了TCLP试验 ,研究了初始渗滤液pH值变化以及液固比变化对该灰中重金属渗滤特性的影响 .在初始渗滤液pH =6之前 ,渗滤后溶液的pH值升高迅速 ,pH =6之后 ,趋势缓慢 .试验结果表明灰中重金属极易在酸性环境中渗滤 .随着初始渗滤液液固比的增大 ,渗滤后溶液的pH值下降 ,渗滤液中的重金属浓度上升 ,灰中的重金属随液固比的增大不断滤出直至饱和状态 .

The characteristics of fly ash from two kinds of incinerators——pure MSW(municipal solid waste) grate incinerator and MSW-coal CFB incinerator weres analysed. The results show that these fly ashes had a similar size distribution. The concentrations of heavy metals in the fly ash of grate incinerator were higher than those of the fly ash of CFB. The leaching characteristics of heavy metals in MSW fly ash was depended on the pH of leachate.

对国内 2种不同的垃圾焚烧炉型———炉排炉与流化床产生的飞灰进行了特性分析 .结果表明 ,飞灰在粒径分布上有相似的规律 .炉排炉飞灰中重金属含量高于流化床飞灰中的含量 .飞灰的渗滤特性表明 ,重金属的渗滤特性受渗滤液的pH影响很大 .

 
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