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专性吸附
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  specific adsorption
    SPECIFIC ADSORPTION OF COPPER ONSOIL CLAY MINERAL
    土壤矿质胶体对铜离子的专性吸附
短句来源
    From the results of the electrophoresis experiments with different concentrations of Na2HPO4 and NaH2AsO4, and different ratios between the two salts, it was concluded that the specific adsorption of phosphate and arsenate in laterite soil reduced significantly the Zeta-potential and TEP of the colloid, but the influence of the latter was larger than that of the former.
    不同Na_2HPO_4和NaH_2AsO_4浓度及其配比的试验表明,磷酸根离子和砷酸根离子专性吸附都会显著地降低砖红壤胶体的ζ电位及其等电点(IEP),但后者的吸附对动电性质(ζ电位和IEP)的影响比前者的影响更大.
短句来源
    and after addition of pH3.5 acidic solution, there existed the process of H+ consumption, of which the mechanism was related to the specific adsorption of SO42- to release OH- for neutralizing H+ in the solution.
    加入pH3.5酸溶液后,存在H+的消耗过程,其机理与SO42-的专性吸附释放OH-以中和溶液中H+有关.
短句来源
    However, p H value of A and B layers increases 0.3~0.5 after the leaching of simulated aci d rain with pH 4.5. This phenomenon is explained by specific adsorption of <IMG SRC="IMAGE/03090156.JPG" HEIGHT=11 WIDTH=23> that simultaneously releases OH-.
    pH4.5酸雨淋溶后,A和B层土壤pH值上升了0.3~0.5,其机理与SO2-4的专性吸附释放OH-有关;
短句来源
    The specific adsorption of copper to soil organic matter,Fe/Al oxide is the main factor affecting copper bioavailability in soil.
    铜污染土壤中有机质、Fe/Al氧化物对铜的专性吸附,是影响土壤中铜生物有效性的主要因素。
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  “专性吸附”译为未确定词的双语例句
    THE CHARACTERISTICS OF Cu~( 2)+ AND Pb~( 2+) ELECTROSTATIC AND SPECIFIC ADSORPTIONS OF CONSTANT CHARGE SOIL COLLOIDS
    恒电荷土壤胶体对Cu~(2+)、Pb~(2+)的静电吸附与专性吸附特征
短句来源
    Bensulfuron methyl markedly increased the adsorption of Cu 2+ in Ca montmorillonite through “bridge” bonding with Ca montmorillonite and Cu 2+ .
    高岭石主要通过专性吸附机制而吸附Cu2 +,吸附的Cu2 +较难脱附 .
短句来源
    The negative value of Δ G  m in different soil colloids was consistent with the sequence of Cu 2+ ,Pb 2+ intrinsic complex constant and permanent charge density.
    供试土壤胶体对Cu2 +、Pb2 +专性吸附ΔG m 的大小与固有络合ΔG m 接近且大小次序也一致。
短句来源
    The results showed that after inoculation,the total amount of solid bound Zn decreased 10%,and the amount of Zn associated with carbonate, Mn oxides,and organic matter fraction decreased 9~26%.
    结果表明 ,褐土接种根瘤菌后固相结合态Zn总量降低 1 0 % ,专性吸附态、氧化锰结合态和有机结合态Zn减少达 9%~ 2 6 % .
短句来源
    while high pH leaded to special sorption and released H+, which decreased the pH of balance solution.
    高pH条件下主要是专性吸附所控制,释放H+使平衡液pH下降。
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  specific adsorption
The specific adsorption potential of SDS is found to be -(4.6 ± 0.1)?, where ? is the product of Boltzmann's constant and absolute temperature.
      
The specific adsorption potential is independent of the background electrolyte concentration, remains constant within the determination error of the parameters, and substantially contributes to the formation of EDL of micelles.
      
In the absence of TMA, ellipsoidal particles were obtained due to the anisotropic growth caused by the specific adsorption of TEOA onto the crystal planes parallel to the c-axis of a titania particle.
      
This is probably due to the specific adsorption of SO2-3 ions on Ag2S centers.
      
The distribution coefficients and the maximum specific adsorption of this compound on the test sorbents were calculated.
      
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The adsorption of Cu on rhizosphere and nonrhizosphere soils deri-ved from quaternary red earth (QP), white bleaching paddy soil (WP), quaternary red soil(QP) and lateritic red soil(LR) were investigated. It was showed that pH, Eh and other soil conditions were changed by the rice root growth, which resulting in the increase of Cu adsorption in rhizosphere soils. The strength of rhizosphere effect on Cu adsorption on soils decreased in following order: QP>WP>LR>QR. The initial concentration of Cu affected the...

The adsorption of Cu on rhizosphere and nonrhizosphere soils deri-ved from quaternary red earth (QP), white bleaching paddy soil (WP), quaternary red soil(QP) and lateritic red soil(LR) were investigated. It was showed that pH, Eh and other soil conditions were changed by the rice root growth, which resulting in the increase of Cu adsorption in rhizosphere soils. The strength of rhizosphere effect on Cu adsorption on soils decreased in following order: QP>WP>LR>QR. The initial concentration of Cu affected the rhizosphere effect significantly.

在第四纪红壤性水稻土(QP)、淀浆白土(WP)、第四纪红土(QR)和赤红壤(LR)上种水稻后,用自制根盒制得各自的根际土和非根际土,以铜为指示离子,研究了土壤对铜吸附的根际效应。结果表明,根系生长使土壤中铜专性吸附载体、pH等因子改变,从而使根际土吸附铜量大于非根际土。QR的铜吸附特征可用Freundlich方程表征,其余土壤可用Langmuir方程描述。铜吸附的根际效应大小依次为QP>WP>LR>QR。起始铜浓度对根际土壤中铜吸附的影响较复杂。除QR外,随样品铜吸附量增加,平衡液pH下降、铜吸附会引起根际土与非根际土pH的差异。

A laboratory study on the reactions between Cr(Ⅵ) and purple soils was conducted to evaluate Cr(Ⅵ) retention and its mechanisms, Results from batch experiments and kinetic studies showed that Cr(Ⅵ)retained depended on chemical properties including free iron oxides and pH,Cr(Ⅵ)may possibly be retained specifically by free iron oxides; Two-surface' Langmuir described theretention the best among the models used, Cr(Ⅵ) released by water was adsorbed nonspecifically; Entropy change of Cr(Ⅵ) retention in acid purple...

A laboratory study on the reactions between Cr(Ⅵ) and purple soils was conducted to evaluate Cr(Ⅵ) retention and its mechanisms, Results from batch experiments and kinetic studies showed that Cr(Ⅵ)retained depended on chemical properties including free iron oxides and pH,Cr(Ⅵ)may possibly be retained specifically by free iron oxides; Two-surface' Langmuir described theretention the best among the models used, Cr(Ⅵ) released by water was adsorbed nonspecifically; Entropy change of Cr(Ⅵ) retention in acid purple soils was positive all over the concentration ranges, while in neutural purple soils it was negetive at low concentrations and positive at higher concentrations.

紫色土中Cr(Ⅵ)的吸持量因土壤基本化学性质不同而存在较大的差异,游离铁及pH是影响最大吸持量的主要因子,“双表面”Langmuir模式最适宜于描述紫色土中Cr(Ⅵ)的吸持作用。酸性紫色土中,由于羟基交换、形成双核络合物等作用,吸持达到平衡的时间较长;中性及石灰性紫色土中,吸持作用在极短时间内即可达到平衡点。酸性紫色土中吸持Cr(Ⅵ)的解吸量及解吸率都比中性紫色土高。酸性紫色土在整个吸持区内都存在专性吸附,中性紫色土在低吸持区以非专性吸附为主,高吸持区伴有专性吸附

The RE (mixed rare earths) isothermal adsorption by soils of the main types in China, synthetic oxides and kaolinite was found following Freund-lich, Temkin, and Langmuir adsorption equations. The maximum RE adsorption capacity (Qm) (mg/g) were, 57.0, 12.7, 7.90, 7.65, 5.13, 1.96,1.62, and 0.90 for δ-MnO2, black soil, chernozem, amorphous iron oxide, yellow brown earth, red earth, laterite, and kaolinite, respectively. The main factors controlling Qm of the soils were the clay type and the content of amorphous...

The RE (mixed rare earths) isothermal adsorption by soils of the main types in China, synthetic oxides and kaolinite was found following Freund-lich, Temkin, and Langmuir adsorption equations. The maximum RE adsorption capacity (Qm) (mg/g) were, 57.0, 12.7, 7.90, 7.65, 5.13, 1.96,1.62, and 0.90 for δ-MnO2, black soil, chernozem, amorphous iron oxide, yellow brown earth, red earth, laterite, and kaolinite, respectively. The main factors controlling Qm of the soils were the clay type and the content of amorphous iron oxide in the soils. The adsorption strength of RE by the soils was related to that of exchangeable adsorption by clay and that of specific adsorption by oxides in soils. The ability of the soils and the minerals to adsorb RE specifically decreased in the following sequence. δ-MnO2> amorphous iron oxide>black soil, chernozem>laterite>kaolinite>red earth, yellow brown earth.

混合稀土在我国主要类型土壤、铁锰氧化物、高岭石表面的等温吸附符合Freundlich、Temkin和Langmuir吸附方程.最大吸附量(Q_m)的顺序为:δ-MnO_2≥黑土>黑钙土>无定形铁>黄棕壤>红壤>砖红壤>高岭石.决定土壤吸附稀土容量的主要因素是粘土矿物类型,其次是无定型铁含量;土壤对稀土的吸附强度与铁氧化物的专性吸附强度和粘土矿物的交换吸附强度有关.土壤和矿物对混合稀土的专性吸附能力顺序为:δ-MnO_2>无定形铁>黑土、黑钙上>砖红壤>高岭石>红壤、黄棕壤.

 
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