采用单一萃取程序对建立的重金属形态连续萃取方法的萃取条件进行优化。
To separate and evaluate heavy metal fractions properly, the proposed sequential extraction method was optimized by single extraction procedure.
采用不同添加剂与污水处理厂的脱水污泥进行混合填埋，考察了填埋初期和后期污泥中重金属形态的变化。
The dewatered sludge was added with various additives to be landfilled, and the variation of heavy metal speciation in sludge during initial and final landfill stages was investigated.
通过对大冶铜绿山铜铁矿尾矿库周围土壤中重金属形态分析实验，研究了重金属各种形态在土壤中的分布特征。
Distribution characteristics of the heavy metal species in soils were studied by speciation analysis of heavy metals in the soils near Cu Fe tailings in Daye.
污泥中重金属对环境危害的大小，很大程度上取决于其形态分布。
The negative impact of heavy metals in sludge is largely determined by its morphology distribution.
污泥堆肥处理试验表明，污泥里重金属的形态有一定的变化，活跃程度有所下降。
The sludge compost treatment experiment shows that there are changes in the morphology of heavy metals and decrease in their activity.
结果表明，不同形态重金属的生物有效性，对不同吸收途径的生物是不同的。
It was showed that the uptake ways of organisms may also influence the bioavailability of heavy metals.
重金属镉的形态多以可交换态存在，有利于治理污染和土壤修复。
Many heavy metal Cd exits in exchange condition, which is advantageous to the research of pollution repair and is more advantageous to the government pollution.
土壤中重金属的赋存形态决定其在土壤中的迁移性、生物可利用性以及毒性。
The mobility, the bioavailability and the toxicity of heavy metals in the soil depend on their specific chemical forms and on their binding state.
利用形态分析、相关分析和地累积指数法研究了吉林省境内部分河流、湖泊沉积物重金属分布规律。
The distribution of heavy metals in the sediments in parts of rivers and lakes in Jilin Province was studied by the methods of binding form analysis, correlation analysis and geoaccumulation index.
因此，氮肥形态的选择供应可作为控制作物对重金属吸收的一种措施。
Therefore, selection of the forms of nitrogen applied may be considered as an effective measure of controlling uptake of heavy metals by crops.
这种重金属含有多重氧化形态，故而在不同的环境下能够丢失或捕获数量不一的电子。
Such metals have multiple oxidation states, meaning they can lose or gain different numbers of electrons in different circumstances.
通过野外调查和实验分析，对芜湖市工业区土壤重金属的形态、含量和分布进行了研究。
Based on the field investigation and laboratory experiment, this paper studied the fractions, contents and distribution of heavy metals in soils of Wuhu industrial sites.
介绍了一种分析测定工业废渣中重金属的化学形态的方法：连续化学萃取法。
The sequential chemical extraction (SCE) method is used to study the chemical states of heavy metals in industry waste slag in this paper.
介绍了重金属镉的环境污染化学性质，自然界存在的形态；
This text introduces the chemistry of the environment pollution property of the heavy metals cadmium, such as existent appearance of nature.
对城市污水处理厂污泥厌氧消化过程中不同浓度的硫酸盐对铜、锌、镍三种重金属化学形态变化所起的作用进行了分析研究。
The effect of sulphate with different concentration on the form variation of Cu, Zn and Ni during sludge anaerobic digestion was studied.
汞是唯一以气态单质形态随大气循环参与全球迁移的重金属元素，大气汞的长距离传输是汞的生物地球化学循环的重要特性之一，对全球汞循环有着重要的影响。
Mercury (Hg) is the unique heavy metal transported with gaseous elemental Hg (GEM). Atmospheric Hg can be transported for a long distance, which plays an important role in global Hg cycle.
结果表明所研究的不同化学形态的重金属对白脊藤壶幼体均具较高的毒性，其毒性随重金属浓度及作用时间的增大而呈逐渐上升的趋势。
Results showed that these 5 heavy metals all exhibited high toxicity to B. albicostatus nauplii and the toxicity increased with the concentration and exposure time.
利用改进的欧共体参比司（BCR）法分析了煤矸石重金属赋存形态，并利用美国TCLP、ASTM、SPLP等静态淋溶法和野外动态淋溶法研究了重金属的释放特性。
The heavy metals forms of coal waste were analyzed by using of BCR method and the release characteristics of heavy metals were revealed by using of the United States TCLP, ASTM, and SPLP method.
利用改进的欧共体参比司（BCR）法分析了煤矸石重金属赋存形态，并利用美国TCLP、ASTM、SPLP等静态淋溶法和野外动态淋溶法研究了重金属的释放特性。
The heavy metals forms of coal waste were analyzed by using of BCR method and the release characteristics of heavy metals were revealed by using of the United States TCLP, ASTM, and SPLP method.
应用推荐