查询词典 jarosite

Continuous culture of immobilized Acidithiobacillus ferrooxidans can be used to remove H2S and SO2. In order to reduce the negative effect of jarosite which formed during the oxidation of Fe(superscript 2+) by immobilized cells, the changing of initial pH and the ingredient in 9K medium were tried.

该固定化细胞的连续培养技术可以用于处理H2S、SO2，为了减少固定化细胞培养过程中带来许多不利效应的黄铁矾沉淀[NH4Fe3(SO4)26]，采取了改变初始pH值和目前普遍采用的9K培养基中的(NH4)2SO4浓度，K2HPO4浓度三种方法。

NASA's principal investigator for the rover mission, Steve Squyres, and his colleagues report in the journal Science that the sedimentary rocks analyzed by Opportunity contain sulfate salts and a mineral called jarosite - harsh chemicals that are also found in briny water here on Earth.

此次漫游者任务的主要航天局调查员 Steve Squyres 和他的同伴在《科学日志》上发表道，"机遇号"分析的水成岩物质含有硫酸盐的成分以及一种叫做黄钾铁矾的矿物，这种化学物质具有很强刺激性，在地球的咸海水中也有这种物质。

Continuous culture of immobilized Acidithiobacillus ferrooxidans can be used to remove H2S and SO2. In order to reduce the negative effect of jarosite which formed during the oxidation of Fe2+ by immobilized cells, the changing of initial pH and the ingredient in 9K medium were tried.

该固定化细胞的连续培养技术可以用于处理H2S、SO2，为了减少减少固定化细胞培养过程中带来许多不利效应的黄铁矾沉淀 NH4Fe3(SO426），采取了改变初始pH值和目前普遍采用的9K培养基中的(NH4)2SO4浓度，K2HPO4浓度三种方法。

The research based on mineral analyses and experiments show that in the sulphate system hydronic jarosite will precipitate when the concentratjon of Fe3+ and SO increases, and goethite will be formed by hydrolises, or goethite and hydrogoethite will be formed when the concentration of .

运用多种方法鉴定表明，在硫酸盐体系中，从高浓度Fe3+和SO溶液中形成的草黄铁矾在表生条件下可水解成外铁矿。

By decreasing the concentration of (NH4)2SO4 from 3 g/L to 0.5 g/L in batch culture, the forming rate of jarosite was decreased by 50%, while Fe2+ oxidation rate was hardly affected.

结果显示：在三种方法中，降低(NH4)2SO4浓度是比较可行的一种方法，当(NH4)2SO4从3.0 g/L降低到0.5g/L，Fe2+氧化速率几乎没有受到影响，沉淀形成速率却减少了45%。

The results showed: among the three methods, decreasing the concentration (NH4)2SO4 was more feasible than two others. By decreasing the concentration of (NH4)2SO4 from 3 g/L to 0.5 g/L in batch culture, the forming rate of jarosite was decreased by 50%, while Fe2+ oxidation rate was hardly affected.

结果显示：在三种方法中，降低(NH4)2SO4浓度是比较可行的一种方法，当(NH4)2SO4从3.0 g/L降低到0.5g/L，Fe2+氧化速率几乎没有受到影响，沉淀形成速率却减少了45%。

The results showed: among the three methods, decreasing the concentration (NH4)2SO4 was more feasible than two others. By decreasing the concentration of (NH4)2SO4 from 3g/L to 0.5g/L in batch culture, the forming rate of jarosite was decreased by 50%, while Fe(superscript 2+) oxidation rate was hardly affected.

结果显示：在三种方法中，降低(NH4)2SO4浓度是比较可行的一种方法，当(NH4)2SO4从3.0g/L降低到0.5g/L，Fe(上标 2+)氧化速率几乎没有受到影响，沉淀形成速率却减少了45%。

In order to reduce the negative effect of jarosite which formed during the oxidation of Fe2+ by immobilized cells, the changing of initial pH and the ingredient in 9K medium were tried. The results showed: among the three methods, decreasing the concentration (NH4)2SO4 was more feasible than two others.

该固定化细胞的连续培养技术可以用于处理H2S、SO2，为了减少减少固定化细胞培养过程中带来许多不利效应的黄铁矾沉淀 NH4Fe3(SO426），采取了改变初始pH值和目前普遍采用的9K培养基中的(NH4)2SO4浓度，K2HPO4浓度三种方法。

The results show that the decomposition rate of ammonium jarosite can reach 98.03% under the following optimum conditions, which are m m=0.381 41, temperature 60 ℃, liquid-solid ratio 21, reaction time 2 h. During the alkaline decomposition, the impurity elements, such as Zn, In, Cu, Cd, Pb, Sb, Sn and Ag are left in the residue, while As is leached into the pregnant solution as AsO43 with leaching rate of 83.36%.

结果表明：在 m m=0.381 41、温度60 ℃、液固比21、反应时间2 h的最优条件下，铁矾渣的分解率达到98.03%，而原料中的杂质金属，如Sn、Sb、Zn、In、Cu、Cd、Pb和Ag等绝大部分留在分解渣中，As则以AsO43的形态大部分进入溶液，浸出率达到83.36%。

DSC-TGA thermal analysis and XRD characterization results demonstrate that Fe is precipitated as Fe3O4 during alkaline decomposition of jarosite. The contents of Fe, In and Zn in decomposition residue are 38.81%, 0.23% and 12.89%, respectively. After selective leaching of In and Zn with dilute HCl solution, the iron concentrates obtained from magnetic separation can be used as raw material for iron smelting.

DSC-TGA热分析和X射线衍射分析结果表明：在NaOH分解过程中，铁矾渣中的铁主要以Fe3O4形式沉淀入渣；分解渣中Fe、In和Zn的含量分别为38.81%、0.23%和12.89%；经稀盐酸选择性浸出铟和锌后，进一步磁选富集可作为炼铁原料。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。