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竞争阳离子
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  competing cations
     the presence of equal amou nt of competing cations Pb2+, Zn2+and Cd2+also weakened the scavenging pro cess.
     与Cu2+共存的等量竞争阳离子Pb2+、Zn2+和Cd2+也同样减弱了Fe3+对Cu2+的去除。
短句来源
     The selectivity of the modified clinoptilolite to potassium ion is higher than to competing cations. But potassium ionadsorption on modified clinoptilolite was restrained by the existence of competing cations as: Na+>Ca2+>Mg2+.
     改性斜发沸石对钾离子具有特殊选择交换性,但溶液中Na~+、Ca~(2+)、Mg~(2+)等竞争阳离子的存在对改性斜发沸石吸附能力有抑制作用,抑制作用的强弱顺序为Na~+>Ca~(2+)>Mg~(2+)。
短句来源
     The adsorption behavior of remodeled clinoptilolite to ammonium was studied in this paper. The effect of pH values,ammonium concentrations and competing cations were considered in the experiment.
     研究了改性斜发沸石对水中氨氮的吸附行为 ,考察了pH值、氨氮初始浓度以及竞争阳离子等对钠型沸石吸附氨氮的影响 ,同时进行了钠型沸石的吸附动力学研究 .
短句来源
     The Freudlich equation, the Langmuir equation and Redlich-Peterson equation were tested using the experimantal data of potassium ion on modified clinoptilolite to obtain the best fit. The influence of the existence of competing cations such as Na+, Ca2+, Mg2+ was measured.
     测定了Na~+、Ca~(2+)、Mg~(2+)竞争阳离子的存在对改性斜发沸石吸附钾离子性能的影响。
短句来源
     The presence of competing cations,mainly sodium ions,surpressed the exchange capacity for potassium,in particular the ratio of potassium ions to sodium ions directly influenced the selec-(tivity) of potassium on the NH~+_4-pretreated clinoptilolite.
     竞争阳离子的存在在不同程度上抑制了铵型斜发沸石对钾离子的吸附,特别是钾离子与钠离子的相对比例直接影响NH4+型斜发沸石对混合液中钾离子的选择交换能力。
短句来源
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  “竞争阳离子”译为未确定词的双语例句
     The results have shownd that theraising in temperature will increase the uranium loading efficiency withoutinfluencing the distribution law of the competitive ions between twophases in uranium zone and the ρ—(?)
     结果表明,升高温度既可提高铀的装载率又不影响铀区各竞争阳离子在两相的分配律以及ρ—(?)
短句来源
     The competitive virtuous ions of calcium and magnesium inhibit the adsorption to some extent,and the adsorption of ammonium nitrogen on the mordenite follows the Freundlich adsorption isotherm equation.
     Ca2+、Mg2+竞争阳离子在一定程度上抑制丝光沸石对氨氮的吸附。 丝光沸石对高浓度氨氮的吸附符合Freundlich等温吸附线。
短句来源
  相似匹配句对
     COMPETITION
     竞争
短句来源
     on competition;
     关于竞争;
短句来源
     Research on Competitive Adsorption of Phenol and a Cationic Dye onto Activated Carbon
     阳离子嫩黄染料与苯酚在活性炭上竞争吸附的研究
短句来源
     Complexation Competition in Cationic Polymerization with TiCl 4 Coinitiator
     以TiCl_4为共引发剂的阳离子聚合体系的络合竞争
短句来源
     DEVELOPING OF A KIND OF CATIONIC FLOCCULANTS
     阳离子絮凝剂研制
短句来源
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  competing cations
Impurities in the bentonite, influencing the concentrations of competing cations, such as Na+, K+, Mg2+ and Ca2+, have a crucial impact on the sorption of caesium.
      
The presence of competing cations, such as Ag+, Cu2+, and Mg2+, except Na+ ions, significantly interfered with the metal uptake.
      
The evolutionary choice of Ca2+ was dictated by its unusual chemical properties, which permit its reversible complexation by specific proteins in the presence of much larger amounts of other potentially competing cations.
      
The simultaneous uptakes of the individual cations are considered in the light of the zeolite pore size, hydration effects and mobilities of the competing cations.
      
Distribution coefficients (Kd) have been determined, with and without competing cations, and at various pH values.
      
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The effects of temperature and citric acid on the cationic bed-Ti(Ⅲ)-FeCl_3-HCl system have been studied.The results have shownd that theraising in temperature will increase the uranium loading efficiency withoutinfluencing the distribution law of the competitive ions between twophases in uranium zone and the ρ—(?)relation.Putting citric acid in thesystem will make a decrease in ρ and a constant in(?).

本文研究了温度和柠檬酸对阳交换床—Ti(Ⅱ)—FeCl_3—HCl 体系的影响.结果表明,升高温度既可提高铀的装载率又不影响铀区各竞争阳离子在两相的分配律以及ρ—(?)关系;加入柠檬酸后可使ρ减小而(?)不变.

The adsorption behavior of remodeled clinoptilolite to ammonium was studied in this paper.The effect of pH values,ammonium concentrations and competing cations were considered in the experiment.Furthermore,the kinetic characteristics of the zeolite was also investigated.The results indicated that the higher saturation adsorption capacity of clinoptilolite was achieved when the saturated sodium chloride was used to pretreat the zeolite.The adsorption behavior of the Na-pretreated zeolite deviated at Y NH...

The adsorption behavior of remodeled clinoptilolite to ammonium was studied in this paper.The effect of pH values,ammonium concentrations and competing cations were considered in the experiment.Furthermore,the kinetic characteristics of the zeolite was also investigated.The results indicated that the higher saturation adsorption capacity of clinoptilolite was achieved when the saturated sodium chloride was used to pretreat the zeolite.The adsorption behavior of the Na-pretreated zeolite deviated at Y NH + 4=0.5 due to the effect of ammonium concentration and pH values.The existence of competing cations restrained the ammonium in Na-pretreated zeolite was diffusion in particle and could be described by Vermeulen model.

研究了改性斜发沸石对水中氨氮的吸附行为 ,考察了pH值、氨氮初始浓度以及竞争阳离子等对钠型沸石吸附氨氮的影响 ,同时进行了钠型沸石的吸附动力学研究 .结果表明 ,采用饱和氯化钠改性制备得到的钠型沸石具有较大的饱和吸附容量 ,受氨氮初始浓度和溶液pH值的影响 ,钠型沸石吸附氨氮的行为在YNH+4=0 5时发生偏离 .竞争阳离子的存在在不同程度上抑制了钠型沸石对氨氮的吸附 .钠型沸石吸附氨氮速率的控制步骤是内扩散步骤 ,可采用Vermeulen吸附模型加以描述

Influences of aqueous medium conditions on Cu2+scavenging by co-precipitation with Fe3+was investigated. The experimental results indicate d that: pH was one of the main factors that controlled Cu2+scavenging, and the scavenging percentage increased with increases of pH values, and the values of pH and logarithm of partition coefficients (Kd) between solid and liquid phase s howed preferable linear relationship; electrolyte ions and in-organic or organ ic ligands dissolved in natural water all played important...

Influences of aqueous medium conditions on Cu2+scavenging by co-precipitation with Fe3+was investigated. The experimental results indicate d that: pH was one of the main factors that controlled Cu2+scavenging, and the scavenging percentage increased with increases of pH values, and the values of pH and logarithm of partition coefficients (Kd) between solid and liquid phase s howed preferable linear relationship; electrolyte ions and in-organic or organ ic ligands dissolved in natural water all played important roles in Cu2+scave nging, and the percentage of Cu2+scavenging decreased with the increasing ad dition of NaCl and NaClO4, while increased with Ca(NO3)2 and Mg(NO3)2 addition. Furthermore, with the exception of phosphate strengthening effect, the addition of sodium sulphate, sodium bicarbonate, glycin, sodium oxalate, sodium citrate a nd LDS weakened Cu2+scavenging in different degree; the presence of equal amou nt of competing cations Pb2+, Zn2+and Cd2+also weakened the scavenging pro cess.

采用室内试验方法,研究了溶液介质条件对Fe3+共沉淀去除Cu2+的影响。试验结果表明,pH是影响Fe3+共沉淀去除Cu2+的主要因素之一,其去除率随pH的增加而增加,并且其固液分配系数Kd的对数值与pH之间显示出较好的线性关系;天然水体中溶解的电解质离子及无机和有机配位体对Cu2+的去除均产生很大影响,Cu2+的去除率随加入的NaCl和NaClO4浓度的增加而降低,而随Ca(NO3)2和Mg(NO3)2浓度的增加而增加,除磷酸盐的增强作用外,硫酸钠、碳酸氢钠、甘氨酸、草酸钠、柠檬酸钠以及十二烷基苯磺酸钠的加入则不同程度地减弱了Cu2+的去除;与Cu2+共存的等量竞争阳离子Pb2+、Zn2+和Cd2+也同样减弱了Fe3+对Cu2+的去除。

 
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