查询词典 heavy metal

In order to improve the effect and avoid the accumulation of heavy metal, electrokinetic remediation enhanced by cation selective membrane is brought forward.

为了提高修复效率，避免阴极处重金属的富集，论文首次提出了阳膜强化的动电修复技术。

Electrokinetics can enhance the mass-transfer process, thus remove the heavy metal to a given direction fast and efficiently; meanwhile electrokinetics can combine other remediation technology, thus possessing broad application foreground.

电动技术能够强化土壤物质的传质过程，能够高效、快速定向迁移土壤中重金属离子达到去除的目的；同时电动技术可以与其它修复技术结合发展出系列组合修复技术，具有广泛的应用前景。

Under the experimental conditions, VDF=3, the PAA could be recovered more than 94% and the heavy metal could be deposited on the electrode because of the high concentration of the eluate.

试验结果表明：在体积稀释因子VDF=3时，恒容超滤过程可以回收94％以上的PAA，分离出的重金属溶液浓度较高可以通过电沉积回收重金属。

One aspect of activation of heavy metal elements during the course of acid rain eluviation is probably determined by the ability of the acid buffer capacity of soil and the other more important aspect is probably related with their existing forms in the soil.

通用型土壤活性组分提取剂试制结果表明，用醋酸铵＋DTPA＋对苯二酚混合提取剂能有效提取土壤中的活性组分，对评价土壤重金属污染的生态效应具有积极的作用。

Although Zn does not seem to be obviously anomaly, it has the highest concentration in soil solution and eluviation solution, the most activation heavy metal element in acid rain effect. Other elements including Hg, As, Cd, Cu, Pb etc.

已有大量研究结果表明，冲积平原区土壤中的Hg异常主要与Org.C有关，本次试验中又在土壤天然重砂中发现了辰砂矿物，Hg的上述存在形式特征决定了它在酸雨淋滤过程中的活动特性。

During the course of acid rain eluviation, Zn shows the most activation. Although Zn does not seem to be obviously anomaly, it has the highest concentration in soil solution and eluviation solution, the most activation heavy metal element in acid rain effect. Other elements including Hg, As, Cd, Cu, Pb etc.

已有大量研究结果表明，冲积平原区土壤中的Hg异常主要与Org.C有关，本次试验中又在土壤天然重砂中发现了辰砂矿物，Hg的上述存在形式特征决定了它在酸雨淋滤过程中的活动特性。3、酸雨作用下离子的迁移过程客观存在，这一点从土壤电导率研究结果中得到了确认。

In order to complete the investigation, impersonality feasible experiment solutions and devices are designed independently to systemically investigate on activation and transfer characteristic of soil heavy metal under acid rain effect. Primary results are shown as followings:1. PH measuring results of soil solution and eluviation solution show that the ability of experimental plot the acid buffer capacity of soil is stronger under the experiment condition,there is no obvious acidification in soil which after acid rain eluviation.The result has substantial differences with that gotten by most of investigationers in similar work before.

这一结果与以往类似研究中多数研究者得到的结论存在本质区别，原因可能在于此次试验的试验条件与以往研究的试验条件不同，其中最主要一点是在本次试验中使用的土壤样品的重量比以往试验均显著增大，而且使用的是土壤结构和组成等均未经破坏的原位土，从而使入渗酸雨与承受酸雨沉降的土壤之间的比例关系更接近自然酸雨沉降过程，以此为基础得到的试验结果应该更加客观、可靠。2、酸雨对盐基离子活化迁移产生的影响勿庸置疑，但是，在盐基离子活化迁移的过程中，并没有出现预想中的重金属元素活化迁移现象，表明土壤中的重金属元素并不如理论分析的那样对酸雨沉降反应敏感。

The results showed that sewage sludge compound fertilizer increased the vegetable yield and the heavy metal contents in the esculent part of vegetables were lower than those of the national control standard, but the lead contents in the cauliflower and lettuce were higher than the national control standard.

结果表明，污泥复合肥可显著提高蔬菜产量，蔬菜可食部分中的Cu、Zn、Cd含量均在国家食品卫生标准范围内，但Pb的含量超出了国家食品卫生标准

The descending trend has close correlation with the concentration range of extractable heavy metal in soil. The optimal estimation of accumulation factors resulted from the exponential equation was more precise than both the mean and the medium in the case of limited samples.

当数据量有限时，利用富集系数与对应可提取态重金属含量之间的回归模型对富集系数定量估值，其准确性要高于取相应的均值或中值。

The DTPA extractable of heavy metal in red soil is significantly higher than that in paddy soil.

土壤中金属的DTPA浸提量与全量呈现显著的正相关。DTPA能浸提出土壤中水溶性、交换态、吸附态、有机固定态和部分氧化态的重金属，这部分相对于其全量被认为是高度生物有效的形态，其快速方便的浸提程序，可以在类似土壤中作为一种有效的重金属污染的评价指标。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新