零价的

This paper summarized the research progress and development trend of reductive dechlorination of PCBs by zero-valent metal.

本文综述了国内外在零价金属还原脱氯降解PCBs领域的研究状况。

But we cannot ignore the effect of passivation of iron's surface and dissociation of water in application.

但是，水的离解对零价铁的消耗表面钝化不容忽视，在实际构建地上反应器或地下反应格栅时应考虑这方面的因素。

At the low reduction temperature, copper species on the catalyst's surface were mainly zero valence copper and monovalence copper; at high reduction temperature, the copper species was mainly zero valence copper.

还原温度为300℃时，催化剂表面Cu物种主要以零价Cu的形式存在。

Years 9 on 9, China National Petroleum Group to Australia's largest oil and gas producer Woodside Petroleum to buy up to 45 billion Australian dollars worth of liquefied natural gas, the Bank of China the same day the conversion price, 1 Australian dollar to 6.2430 yuan to calculate, when the China National Petroleum Corporation's property for 280.935 billion yuan.

二千零七年9月9日，中国石油天然气集团对澳大利亚最大的石油和天然气生产商伍德赛德石油公司购买最多45亿美元的液化天然气，中国银行的同一天，澳元兑换价， 1澳元六点二四三零元计算，当中国石油天然气集团公司的财产为2809.35亿元。

Objective To observe the removal of Cr and effects of some factors in solution on Cr with zero valent iron.

目的 观察零价铁对水中Cr的脱除效果以及影响Cr脱除的主要因素。

The results proved that the removal efficiency of 2,4-DCP could only reach 26% and 40%,respectively if individually by using zero valent iron and natural zeolite.

结果表明：单独采用零价铁屑、沸石为反应介质时，2，4-二氯苯酚的去除率分别为26%和40%；

The key technology of permeable reactive barrier and the principle of zero valent iron remediation were summarized,and the study progress and practical applications were reviewed.

综述可渗透反应墙的技术关键、零价铁修复的原理和PRB的最新进展和实例应用，介绍PRB技术处理地下水的技术优势及存在问题。

Zero-valent metal can effectively promote the reductive dechlorination of PCBs under high temperature or the existence of Pd, Pt, Ni and Cu as catalyzers.

在高温等特殊条件下或有钯、铂、镍和铜等催化剂存在的条件下，零价金属能有效促进PCBs还原脱氯。

Fe〓 and nascent hydrogen that results from reduction of water at the iron surface may be not the main reductants.

溶液中的二价铁离子和零价铁与水溶液接触所产生的氢气对反应的影响不大。

On the PRBs. Experiments results indicated that under the same condition, the treatment effect of contaminants directly correlated with retention time of contaminants in rectors; ZVI take an important role on decomposing the complex non-biodegradable or difficult biodegradable org...

实验结果表明：在相同条件下，污染物的处理效果与滞留时间直接相关；零价铁对复杂的不可生物降解或难生物降解的有机物向简单有机物的转化起了重要作用，经过反应器后使ρ(BOD5)/ρ值从初始0.32增至0.5~0.79，增强了有机物的可生物降解性；不同的辅助反应介质对污染物的去除具有一定的选择性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。