化学专业英语论文

Study on Adsorption of Heavy Metals by Suspended Sediment of Juma River 拒马河悬浮沉积物对重金属的吸附—解吸研究 Effect of Cd-Pb pollution on cole growth behavior and its accumulation effect of heavy metals in soil 土壤镉、铅污染对油菜生长行为及重金属累积效应的影响 Study on the Adsorption of Heavy Metals Ion onto Vermiculite 蛭石对重金属离子吸附作用的研究 A Perliminary Study on Concentrating Heavy Metals By Sabina Chinensis Seadlings 桧柏富集重金属研究初报 Iron presents in abundance as variety of Fe(III) oxides in Fe 在地壳中含量丰富,通常以各种Fe(III)氧化物的形式存在。 Chemical behavior of heavy metals in rhizosphere——Ⅱ The rhizosphere effect of desorption of adsorbed Cu in 重金属在根际中的化学行为——Ⅱ土壤中吸附态铜解吸的根际效应 STUDY OF POLYSILOXANE WITH AMINO ACID SIDE CHAIN SUPPORTED CATALYSTS Ⅲ THE SYNTHESIS, HYDROGENATION ACTIVITY AND XPS STUDY OF POLY-γ-(L-SERINE)PROPYLSILOXANE PALLADIUM CATALYSTS 含氨基酸侧链的有机硅高分子催化剂——Ⅲ聚γ—(丝氨酸基)丙基硅氧烷钯催化剂的合成、加氢活性及XPS研究 A Study of Monitoring Heavy Metals and SO_2 in Air Using Moss-bags as Bio-monitors 苔袋法监测大气重金属和SO_2污染 STUDY ON HIGH EFFICIENT REMOVAL METHOD OF COD_(cr) IN DIPDYE OUTLET WATER 印染废水COD_(cr)高效去除法的研究 The absorptive capacity of soil to heavy metals and its pollution levels were in the following orders:Cd>Pb>Cr>Cu>As>Zn>Ni>Mn>F 土壤对重金属元素的吸附及污染程度 :Cd >Pb >Cr >Cu >As>Zn >Ni>Mn >Fe。

有机化学英语论文Abstract In this work the effects of the microporosity and chemical surfaceof polymeric adsorbents on adsorptive properties of phenol Textural parameters of four kinds of polymeric resins namely AB-8 D4006 NKA-II and D16 resin were separately measuredby ASAP The surface chemistry of these polymeric resins was determined by means of inverse gaschromatography (IGC) and diffusereflectance infrared Fourier transform spectroscopy (DRIFTS) Static equilibrium adsorption experiments were carried out to obtain theisotherms of phenol on the polymeric It was shown that NKA-II and AB-8 resin possessed relatively high BET surface areas andmicropore volumes while D4006 and D16 resin possessed comparatively low BET surface areas and micropore The results of IGCexperiments revealed that NKA-II resin had extraordinary high specific component of the free energy of adsorption both for polar acetone andbenzene probe and thus extraordinary strong surface polarity compared to the other polymeric It was also found that the isotherm ofphenol on NKA-II was much higher than that on the other polymeric resins due to its strongest surface polarity and largest micropore volumeamong four kinds of These experimental observations indicated that adsorption of phenol on the polymeric resins depended greatly ontheir microporosity and surface The well-developed microporosity and the strong surface polarity would improve the adsorptionof phenol on the polymeric 2004 Elsevier BV All rights Keywords: Polymeric resin; Phenol; Porosity; Surface chemistry; Inverse gas chromatography

高效的重金属去除聚合物纳米保湿由铁(3):行为和XPS研究氧化物 文摘:本研究开发了一种聚合物混合吸着剂(HFO-001)为高效的重金属去除(如铅(2)、Cd、铜(II),(2)]不可逆转的浸渍水合氧化(铁(III)在cation-exchange HFO)粒子(R-SO3Na D-001树脂),这种现象的潜在机制的基础上揭示x射线光电子能谱(XPS)的研究。HFO-001结合了出色的处理,和摩擦阻力流量特性,传统的cation-exchange树脂与特定的关系入手,对重金属HFOs阳离子。D-001相比,吸附选择性的HFO-001对铅(II)、铜(二)、(2)Cd大大提高从Ca(II)中更大的浓度。结果表明,柱吸附能力的工作是4-6 HFO-001 D-001倍以上三方面的重金属去除从模拟电镀水(pH ~ 0)。同样,HFO-001尤为有效杀灭多种微量铅(II)和Cd(2)从模拟自然水域达到饮用水标准,以治疗量高于D-001数量级。性能优越的HFO-001归因于Donnan膜效应所举办D-001以及纳米粒子交互作用的特殊HFO浸渍对重金属阳离子作为进一步证实,由XPS研究吸附铅。更有吸引力,疲惫的HFO-001串珠可以有效地解决由HCl-NaCl再生(pH值(3),没有任何有意义的能力的重复使用的损失。 1。简介:重金属注入受纳水体环境问题仍然是重要的,现在正在日益规范作为新的法规限制金属废水推进亿欧元(合ppb),甚至更低(美国EPA,2004年的水平,中国2008年美国环保署)。在现有技术、碱性降水重金属去除历来是首选的技术会议,(ppm)管理水平为微量铅(如第(二)、(二)、Cd等。]在direct-discharge废水点源,然而,这技术通常是限于≥污水浓度百万分之一的有限溶解无定形的金属氢氧化物阶段和效率低下的商业固液分离装置(代尔等,1998年,2003年)。离子交换树脂,利用strong-acid cation-exchange是另一个高效的技术,为有效去除工业废水中重金属的(Dabrowski等,2004,康等,2004;Kurniawan等,2006)或污染地下水(Vilensky等,2002;Dabrowski等,2004年)。然而,一个简单的交换过程中只被静电相互和非特异性为重金属去除(Demirbas等,2005;Carmona等,2008年)。