查询词典 pollutants

In this paper,the pollution sources and the hazards of the pollutants in nitrotoluene production are briefly described,the various approaches for reducing and eliminating the pollution by adoption of cleaner production are outlined.

文摘：简介一硝基甲苯生产过程中污染物的产生和危害，概述了采用清洁生产技术减少和消除污染的各种途径。

Mass of nocuous pollutants, such as PCDD/PCDFs, NOx, trace elements and fly ash, will be induced in the combustion process.

垃圾焚烧是多种燃烧形式综合的过程，其燃烧伴随着污染物的产生，例如二恶英、NOx、重金属和粉尘等。

In 2000 approximately 101 million Americans lived in areas that did not meet at least one of the standards for criteria air pollutants.38 As of September 2000 there were a total of 114 nonattainment areas.39 The map in Figure 5-7 shows these nonattainment areas.

在2000年接近10100万美国人生活在连一条关于空气污染物标准都未达到的地区。到2000年九月，总计有114个未达标地区。当一得去每日平均每小时的词浓度超过国家空气质量标准时，该地区被定一位未达标为达标地区。图5-7的地图显示了这些未达标地区。

This mitigating cost-benefit factor was not included among those to be considered in formulating BAT limitations for toxic and nonconventional pollutants.

在对有毒和非常规污染物限制中，在提出经济方面可行的最佳技术的诸多因素时，并没有考虑缓和成本一利益之间关系这一因素。

It does not consume expensive oxidizing chemicals, the catalyst is nonhazardous and inexpensive. The method is simple and high efficient, which generally achieve complete mineralization of organic pollutants in water to such inorganics as CO〓 and H〓O.

它不需要昂贵的氧化剂，催化剂无毒价廉，方法简单，通常能将水中的有机物氧化为CO〓和H〓O〓等简单无机物。

This paper enumerate nonorganic, organic pollutants and their toxicity produced by fossil fuel.

大气中的无机污染物和有机污染物绝大部分来源于化石燃料的燃烧，本文列举了化石燃料燃烧产生的无机污染物及其毒性、有机污染物种类及其毒性。

In this paper, according to the features of assessment index for the cleaner production, the unexpected input, the multi-usage of resources and energy is used as output, while the unexpected output, index of pollutants as input. Then the data envelopment analysis is applied to assess the cleaner production schemes for enterprises to find out the nonpaying schemes. Then improve the nonpaying schemes into effective ones.

本文根据清洁生产评价指标的特征，将资源能源综合利用指标等非期望输入等作为一种输出，污染物指标等非期望输出作为一种输入，引入到数据包络分析模型中，对企业的清洁生产方案进行科学客观的有效性评价，并找出非有效的方案，时其进行有效性改进。

Landfill leachate is a kind of high concentration,slowly biodegradable organic wastewater with quantity of organic pollutants, heavy metals, virus and nosogenetic bacteria.

垃圾渗滤液是城市生活垃圾在卫生填埋或堆放过程中产生的一种高浓度难降解的有机废水，渗滤液中有机物浓度含量高、成份复杂、存在重金属离子及大量病毒和致病菌。

Crassipes and other aquatic plants pulssingall combination in series showed efficiant removing ability for nitrogen and phosphorus,and the inlay combination of E. crassipes, Trapa manshurica and Nymphaea tetragonashowed better removal efficiency for redox organic pollutants than the inlay combinationadding other combination in series.

人工复合生态系统试验表明，凤眼莲与水生植物的镶嵌组合加各级串联组合能有效去除氮磷，而对于还原性有机污染物，凤菱睡镶嵌组合的去除效果相对要好于镶嵌组合加各级串联组合。

The dechlorination of the chlorinated hydrocarbon by electrolytic iron is based on the laws of redox reactions,the adsorption of the pollutants by tiny granular activated carbon among the iron filings ,the catalytic process of the tiny granular carbon,the destruction of the oxidational membrane on the iron surface by the active chloride ion and the effect of the tiny electric fields.

简述了氯代烃的主要物理性质和用途，认为铁屑腐蚀电池处理氯代烃污水是基于氧化还原反应、铁屑中活性炭微粒对氯代烃的吸附与对反应的催化、氯离子对氧化膜的破坏和微电池的电场效应等原理；简要总结了迄今利用铁屑去除氯代烃的室内实验和利用原位铁屑反应墙处理地下水中的氯代烃污染研究所取得的成果，认为这种反应墙是一种效果好、成本低、维护方便、有望投入商业运行的最佳方法，并指出了其存在的问

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。