苯系物
- 网络btex;btx;benzene series;benzene
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苯系物(BTEX)是人类活动排放的一类重要污染物,对区域特别是城市大气环境具有重要影响。
BTEX is important pollutant from anthropogenic emissions , BTEX in the urban atmosphere has the serious influence to the region and local distant .
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其液膜阻力增加的能力与苯系物的lgK(ow)呈正相关。
In addition , the positive relation was found between the restraining ability of a surfactant and lgK_ ( ow ) of BTEX .
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UV/草酸铁/H2O2法降解苯系物的研究
Degradation of BTX by UV / Ferrioxalate / H_2O_2 Process
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微乳法制备的纳米Bi2O3对苯系物光催化活性
Photocatalytic activities of Bi_2O_3 nanoparticles prepared by microemulsion method on benzene , toluene and xylene
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环境样品中苯系物的溶剂蒸气吹扫-吸收GC-MS分析法
Solvent Vapor Purge-Absorption of Benzene Homologues from Environmental Samples for GC-MS Analysis
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可对大气中10-9级苯系物进行测定,RSD≤3.5%。
Benzene compounds of ppb level can be determined . Relative standard deviation is ≤ 3.5 % .
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污泥干化过程中苯系物(BTEX)的释放及其致癌风险评价
BTEX release and its carcinogenic risk assessment during sewage sludge dewatering
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结果表明,由水稻土中提取的微生物可以利用苯系物作为唯一碳源,在厌氧降解的同时将电子转移给Fe(Ⅲ),使其还原为Fe(Ⅱ);
The results indicated that , the microbe in the paddy extraction could transfer electrons to Fe (ⅲ), utilizing benzene analogs as sole carbon source when microbe was degraded ;
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室内空气中苯系物和TVOC检测
The Detecting of Benzene Homogeneous and TVOC in the Indoor Atmosphere
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以国家标准方法和EPA方法为基础,进行了矿坑排水中苯系物的测定。
The mononuclear aromatics in mining drainage were determined in line with the China national standard methods and American EPA methods .
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研究和探讨了应用ACF填充的吸附柱对苯系物净化的工艺过程。
The technical process using the absorption column filled with ACF to clean the benzene series mixture is studied .
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TENAXTA吸附/二次热解吸/毛细管气相色谱法测定环境空气中苯系物的方法
Tenax TA adsorption / thermal desorption / capillary gas chromatography for monitoring BTX in the ambient air
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二种TMA改性粘土矿物均可以有效地吸附模拟地下水中的苯系物,吸附机理较复杂,主要以表面吸附为主。
Modified clays have good sorption effect , sorption mechanisms are complex , but surface adsorption is the predominant .
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采用溶胶凝胶工艺制备以多孔泡沫镍为载体的TiO2薄膜,并用其光催化氧化降解挥发性苯系物(苯、甲苯和二甲苯)。
TiO 2 film fixed on porous nickel was prepared by sol gel method and used in photocatalytic oxidation of volatile benzene homologue ( such as benzene , toluene and xylene ) .
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苯系物和TVOC的浓度在使用半年以内最高,以后逐渐降低。
The concentrations of benzene series compounds and TVOC were highest within half an year 's use , decreasing gradually later on .
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油漆薄木贴面中密度纤维板TVOC释放量与薄木贴面中密度纤维板差异不大,甲醛释放量很少,苯系物相对较多。
Less formaldehyde and more benzene released from spray MDF veneered veneer that had little difference in TVOC emission comparing with MDF veneered veneer .
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室内苯系物和总挥发性有机物(TVOC)是造成室内空气污染的主要原因之一。
The benzene homogeneous and overall volatility organic substance ( TVOC ) in the indoor atmosphere , are the major factor causing on indoor atmosphere pollution .
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用国产GDX树脂作吸附剂富集,气相色谱法测定了水中痕量苯系物,结果良好。
Trace benzene homolog in water was determined by GC with satisfactory result , home resin GDX used as enriching adsorbent .
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使用Tenax管在常温下富集采样,研究了南京市交通干道大气环境中苯系物的污染状况和季节变化规律,监测过程历时1年。
Pollution degree and seasonal variable regularity of BTEX in atmosphere by truck road in Nanjing were studied by Tenax at normal temperature .
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我国环境科学工作者对城市大气中苯系物也进行了一些研究,但这些研究主要集中在光化学反应活跃期间(6-8月),对BTEX的连续观测则鲜见报道。
Researchers in our country have also conducted some research to the urban atmosphere , but these research mainly concentrate on photochemical reaction-active period ( June to August ) .
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用碳分子筛TDX-01作吸附剂分析测定大气中超痕量的C6-C8苯系物空气总氚采样器的采样效率刻度
Use of carbon molecular sieve as adsorbent for sample collection in the determination of c_6 to c_8-benzenoid hydrocarbons in air calibration for collection efficiency of total airborne tritium sampler
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来源于各种建材和家具等的总挥发性有机物(TVOC)、苯系物和甲醛是室内空气污染监测的重点指标。
Emission from building materials , furniture , etc , Total Volatile Organic Compounds ( TVOC ), benzene , and formaldehyde are widely used as key indicators of indoor air quality .
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近年来随着工业的发展,工矿企业的快速增加,苯系物苯、甲苯、乙苯及二甲苯(简称BTEX)对环境的污染已成为突出的问题之一。
In recent years , with the development of the industry and rapid increase of industrial and mining enterprises , environmental pollution of benzene homologue compounds has been one of the extrusive problems .
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通过苯系物(BTEX)表征了涂层表观结构、厚度及萃取性能。
The surface structure , thickness and extraction properties of the novel activated carbon coating fiber were investigated through the application to Benzene , Toluene , Ethylbenzene , p-Xylene , o-Xylene ( BTEX ) .
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生化池苯系物逸散速率已经超过《大气污染物综合排放标准》(GB16297-1996)中的三级标准。
The volatile rates of BTEX in biochemical tank exceeded the Comprehensive Discharge Standard of Atmospheric Pollutants ( GB16297-1996 ) .
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本文研究气相色谱填充柱在不同柱流量和不同浓度的苯系物样品,使用尾吹气对FID检测器灵敏度的影响,以确定分析仪器的最佳灵敏度。
The impact of makeup gas for packed column on sensitivity of FID ( Flame Ionization Detector ) was studied with different concentration sample and different carrier gas flow in order to find out optimal sensitivity of Gas Chromatogram .
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用短链季铵盐阳离子表面活性剂四甲基铵离子(TMA)改性膨润土和凹凸棒土,研究它们对模拟地下水中苯系物的吸附作用。
Modifying Bentonite and Attapulgite with on short chain quaternary ammonium compound ( QAC ) tetramethylammonium ( TMA ) has been done . The sorption of benzene homologues in simulated groundwater by TMA modified clays has been studied .
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根据炼油废水成分分析的结果筛选降解烷烃、苯系物、苯酚等难降解化合物的高效降解菌,通过正交实验确定各组成菌株的最佳配比,制成复合微生物菌剂,根据营养需求添加KH2PO4作为助剂。
According to the analysis of refinery wastewater , high-efficiency microbe which can degrade alkane 、 benzene series 、 phenol were screened . The proportion of these microbe determined by orthogonal experiment . Microorganisms agent includes those microbe and KH_2PO_4 , act as aid agent , based on nutritional requirements .
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城市居住区空气中苯系物的测定来源分析
Measurement and analysis of benzene hydrocarbon in urban residential quarters air
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苯系物对工人健康的影响
The effect of benzene series compounds on the health of workers