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模拟地下水
相关语句
  simulated groundwater
    SORFTION OF BENZENE HOMOLOGUES IN SIMULATED GROUNDWATER BY TMA MODIFIED CLAYS
    TMA改性粘土矿物对模拟地下水中苯系物的吸附
短句来源
    In this paper the sorption (desorption) behaviour of iodine on the concrete with the simulated groundwater and the sorption isotherm were studied.
    研究了在模拟地下水介质中,混凝土对碘的吸附(解吸)规律和吸附等温线。
短句来源
    In this paper the sorption (desorption) behaviour of selenium (in simulated groundwater) (with clay) and the sorption (desorption) isotherm equation was studied.
    本文研究了在模拟地下水介质中,粘土对硒的吸附(解吸)规律和等温吸附方程。
短句来源
    Modifying Bentonite and Attapulgite with on short chain quaternary ammonium compound (QAC) tetramethylammonium (TMA) has been done. The sorption of benzene homologues in simulated groundwater by TMA modified clays has been studied.
    用短链季铵盐阳离子表面活性剂四甲基铵离子(TMA)改性膨润土和凹凸棒土,研究它们对模拟地下水中苯系物的吸附作用.
短句来源
  simulated underground water
    The sorption of the long-lived fission product 129I on clay and kieselguhr in the simulated underground water was investigated by taking Na125I as tracer.
    本文以Na~(125)I为示踪剂,在模拟地下水介质条件下研究了粘土和硅藻土对长寿命裂变产物~(129)I(T_(1/2)=1.57×10~7a)的吸附规律。
短句来源
  “模拟地下水”译为未确定词的双语例句
    STUDY ON THE BEHAVIOR OF HUMIC ACID REDUCING PLUTONIUM IN SIMULATED GROUND WATER
    在模拟地下水中腐殖酸还原钚的行为研究
短句来源
    As one aspect of the environmental chemistry of the actinide elements,the influences of inorganic ions,concentration of humic acid,pH value of the solution and temperature, etc. on reduction rate of Pu (Ⅵ) are studied. The results indicate that the reduction rate of Pu (Ⅵ) is proportional to the concentration of Pu (Ⅵ).
    研究了腐殖酸浓度、溶液pH、温度以及无机离子等对Pu(Ⅵ)还原的影响,测定了Pu(Ⅵ)在模拟地下水中的还原速率。
短句来源
    Modified clays have good sorption effect, sorption mechanisms are complex, but surface adsorption is the predominant.
    二种TMA改性粘土矿物均可以有效地吸附模拟地下水中的苯系物,吸附机理较复杂,主要以表面吸附为主.
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  simulated groundwater
Solubility of mixed-valence U(IV-VI) and Np(IV-V) hydroxides in simulated groundwater and 0.1 M NaClO4 solutions
      
In sorption from simulated groundwater (pH 8.3), the surface distribution coefficient in surface sorption Ka was determined to be 8-37 and 4-80 cm for Am and Pu, respectively.
      
In order to investigate the feasibility of preparation and stabilisation of simulated groundwater samples, various tests were necessary prior to the production of a large batch of candidate reference materials.
      
This paper presents the preparation of simulated groundwater reference materials and the different stabilisation procedures tested.
      
The bioreporting efficacy of alginate/SrCl2-immobilized HK44 was investigated in simulated groundwater with different pH?regimes.
      
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The sorption of the long-lived fission product 129I on clay and kieselguhr in the simulated underground water was investigated by taking Na125I as tracer. Results was shown that sorption of I- on clay and kieselguhr in the simulated underground water with 6-7 pK followed the Freundlich sorption law,the percent ratio of sorption was low≤5%).The sorption of the carrier-free 125I on the surface of polyethylene and glass vessels demonstrated that IO3- was sorbed easily than I-.

本文以Na~(125)I为示踪剂,在模拟地下水介质条件下研究了粘土和硅藻土对长寿命裂变产物~(129)I(T_(1/2)=1.57×10~7a)的吸附规律。实验发现,在pH6—7的地下水介质中,粘土和硅藻土对I~-的吸附服从Freundlich等温吸附经验公式,但吸附百分率较小(≤5%)。 对无载体~(125)I在实验用聚乙烯瓶和玻璃瓶上的吸附研究表明,碘的氧化态(I_3~-或IO_3~((?))要比I~-更易被吸附。

In this paper the sorption (desorption) behaviour of iodine on the concrete with the simulated groundwater and the sorption isotherm were studied. The value of distribution ratio RDa at 30±2℃,C1 = 10-6mol/l and pH=9. 01 was determined to be 3. 16±0. 32 ml/g. The effects on RD values of acidity, solid-liquid ratio,solid specific surface area and the reductant (Fe and (NH2)2) were also investigated.

研究了在模拟地下水介质中,混凝土对碘的吸附(解吸)规律和吸附等温线。实验表明,在30±2℃、c_I=10~(-6)mol/l、pH=9.01条件下的分配比R_(D_a)=3.16±0.32ml/g。还对酸度、固液比、固体比表面和还原剂Fe、(NH_2)_2存在时对R_D值的影响进行了研究。

The composition of groundwater is very complicated. It contains inorganic ions and dissolved organic compounds (DOC).As one aspect of the environmental chemistry of the actinide elements,the influences of inorganic ions,concentration of humic acid,pH value of the solution and temperature, etc. on reduction rate of Pu (Ⅵ) are studied. The results indicate that the reduction rate of Pu (Ⅵ) is proportional to the concentration of Pu (Ⅵ). With the increasing humic acid concentration and the pH value, the reduction...

The composition of groundwater is very complicated. It contains inorganic ions and dissolved organic compounds (DOC).As one aspect of the environmental chemistry of the actinide elements,the influences of inorganic ions,concentration of humic acid,pH value of the solution and temperature, etc. on reduction rate of Pu (Ⅵ) are studied. The results indicate that the reduction rate of Pu (Ⅵ) is proportional to the concentration of Pu (Ⅵ). With the increasing humic acid concentration and the pH value, the reduction of Pu (Ⅵ) accelerates obviously. The rate equation of reduction reaction of Pu (Ⅵ) is; - d[Pu(Ⅵ)]/dt= k[Pu(Ⅵ)][HA]0.52[H+]-0.069The reduction rate of Pu(Ⅵ) increases with the increase of temperature. Because the temperature of deep groundwater is so high, it can be estimated that the reduction of Pu (Ⅵ) would be very fast in deep underground condition.The influences of Na+ ,K+ ,Ca2+ ,Mg2+ ,NO3- ,HCO3- and HPO42- etc. on the reduction of Pu (Ⅵ) are not significant, but the existence of Fe2+ ,F- and SO42- accelerates the reduction of Pu( Ⅵ) obviously.The reduction behaviour of Pu (Ⅵ) in simulated groundwater is plotted. It can be seen that the curves of the Pu (Ⅵ) content against reaction time can be devided into two straight lines. The possible reason of decreasing slope of Pu (Ⅵ) reduction could be explained by the fact that under the open experimental condition,Fe2- could not exist for a long period,thus causing the gradual lowering of the reduction power.

研究了腐殖酸浓度、溶液pH、温度以及无机离子等对Pu(Ⅵ)还原的影响,测定了Pu(Ⅵ)在模拟地下水中的还原速率。实验结果表明,随着腐殖酸浓度的增加、溶液pH的增大和温度的升高,Pu(Ⅵ)的还原速率明显加快。Fe~(2+)、F~-和SO_4~(2-)等离子对Pu(Ⅵ)还原速率也有很大影响。

 
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