污染物

Active hydrogen atom and oxygen ion form Hydroperoxy radicals which surround the positively charged biological contaminants, and then react with three hydrogen elements of its protein structure, destroying and detoxicating the biological contaminants nature.

活性氢和氧离子(O2-)形成的氢过氧自由基，会包围着带正电荷的生物污染物，每一枚黏附在污染物表层的氢过氧自由基，会与其蛋白质结构中三个氢元素产生反应，完全破坏其结构，变成无毒状态。

This paper presents several construction strategies of genetically engineered bacteria for the bioremediation purpose through analyzing the biodegradation mechanisms of pollutants and encumbering factors for efficacy of biodegradation .

通过对环境污染物的生物降解机制及妨碍污染物降解的因素进行分析，提出了几种高效基因工程降解菌的构建策略

For the first time, a new method to blow out and separate volatile pollutants from aqueous solution by ultrasound is presented, which inaugurates a brand-new application field for ultrasonic technique at the same time.

基于空化效应，进行了有机污染物超声降解动力学及其机理的研究；首次提出了利用超声波吹脱分离水中挥发性污染物的新方法，为超声波开辟了一个新的应用领域；率先开展了利用超声波清洗膜污染和减轻浓差极化的中试研究。

The result shows that the recycling effluent upgrades significantly the removal for BOD_5,COD,SS,and NH~+_4-N,and BOD_5 removal rate meets the Monod equation;most part of NH~+_4-N is nitrified and the removal rate of NH~+_4-N is linear with the surface loading rate.Along with the nitrification,alk...

结果表明：循环出水显著提高了对BOD5、COD、SS和NH+4-N的去除率，且对BOD5的去除满足Monod方程；大部分NH+4-N的去除率与其表4-N被硝化，对NH+面负荷率呈线性关系；随着硝化反应的进行，碱度减少，pH值不断降低；循环出水可引入部分氧气，延长了污染物和附着于植物根系微生物的接触时间，提高了对污染物的去除率。

Up to now, people are still not clear on many problems, such as how does the contamination move and scavenge itself in lakes, and under what conditions will the pollutant that has been scavenged pollutes the water body again.

人们至今还无法彻底弄清楚污染物在湖泊水体中是如何迁移转化的，污染物又如何的发生自净化作用，又会在什么样的条件下对湖泊产生二次污染等一系列问题。

The removal efficiency of VOCs by the air sparging process depends critically on the contact volume of the contaminated groundwater by the injected air, or the sweep efficiency.

气提法是藉著注入地下水层中的空气将溶於地下水及非饱和层中的挥发性有机污染物带出，因此空气在含水层之流动路径及接触污染物的排扫效率就成了影响气提法现场污染整治成效的重要因素。

A part of NAPL-phase pollutant was oxidized during Fenton-like oxidation, However H2O2 was catalyzed to produce O2, an produced air sparging effect. The soil was disturbed, which increasing NAPL dissolution and volatilization. When using the low H2O2 flux to pass through column, the oxidation of MTBE and TPH of 95 gasoline is better than that of high H2O2 flux.

在管柱连续流Fenton-like反应处理95汽油NAPL过程中，NAPL态污染物部份是被氧化，但H2O2被催化产生之O2 扰动NAPL态污染物，因而增加溶出浓度并产生类似air sparging之去除效果。

Based on GIS and water pollution model, the paper discusses sulfured pollution in Yellow River, analyses diffusion equation of sulfured pollution, implements visible presentation, provides a new method for water pollution control and management.

本文以黄河某河段的硫化物污染为例，基于GIS技术和水环境数值模拟方程，研究污染物在水环境中的运移扩散规律，并实现污染物扩散的可视化表达，探索污染控制和治理的新方法。

Oil pollutants not only impact wheat emergence, plant height, panicle length but also the germination rates of corn, soybean and cotton seed which is the impacted mostly. Through field comparative analysis between apple trees near wells and those without pollution, index of leaf senescence of fruit trees, apple leaf chlorophyll content and nutrient composition are impacted slightly by the development of oil.Specific measures for the environmental impact of oil development should be issued systematically from the perspective of the government and the public.

石油类污染物对小麦的出苗率、株高、穗长影响较大；石油类污染物对玉米、大豆和棉花种子的发芽率均有影响，其中影响最大的是棉花种子；通过野外调查选择油井附近的苹果树和对照点没有污染的苹果树进行对比分析，发现石油开发对果树的叶片衰老指数、叶片叶绿素含量和苹果的营养成分等影响较小。

The open ocean is used as a dumping ground for numerous pollutants, including oil, sewage, hydrocarbons and metals.

环境关系开阔海洋被用作倾倒许多污染物的场所，这些污染物包括油、污水、碳氢化合物和金属。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。