As one part of the research,soil column experiments(10 100 cm) were conducted to understand the heavy metal transport behaviors in soil profile under reclaimed water leaching condition .
本文通过土柱模拟试验,分析中水灌溉条件下重金属在土壤中的迁移趋势及其对浅层地下水的污染风险。
72%,respectively,when they were leached through soil columns,especially in the calcareous soil.
通过室内土柱试验研究了DOM在土壤剖面中的“分馏”作用,DOM在纵向运移过程中的穿透行为及对污染的红壤和潮土中重金属Cu溶出效果的影响。
Through soil columns leaching, the effect of different simulated acid rain on the leaching amount of phosthorus in Chongqing grey purple soil with different fertilizers was investigated.
用不同酸度的模拟酸雨,通过严格的土柱淋洗试验,研究了在不同酸度的模拟降水下,重庆市施用不同肥料的蔬菜地的土壤(紫色土壤)中磷元素(P元素)淋失量的变化情况。
SELECTIVE CATALYTIC REDUCTION(SCR) OF NOx OVER PILC CATALYST;
层柱粘土催化剂在SCR烟气脱硝中的应用
A grand canonical Monte Carlo (GCMC) method was carried out to simulate the adsorption of methane being a main component in natural gas on ZrO2 pillared clay.
为了更好地反映甲烷与层柱粘土无机层板的相互作用,对墙势模型中的尺寸参数σfw和能量参数εfw取值进行了优化。
Alumina-pillared clays were prepared by intercalation of [Al 13O 4(OH) 24(H 2O) 12] 7+, which was obtained by adding NaOH or NH 3·H 2O to an AlCl 3 solution, into the natural montmorillonite and rectorite, followed by calcination.
分别在氨介质和钠介质中制备了层柱蒙脱土和层柱累托石 ,并用氟化铵、氟硅酸铵和氟铝酸铵对层柱粘土进行处理 ,考察了处理条件对层柱粘土结构和酸性的影响 。
(2) At present th e pillared clay study is one of the frontiers of new catalytic materials worldwi dely.
粘土矿物在催化裂化催化剂中的应用表现在三个方面 :(1)在无定形硅铝凝胶引入之前 ,活性白土的使用代表着一个历史阶段 ;(2 )层柱粘土的研究是目前国际上活跃的新型催化材料前沿课题之一 ,层柱蒙脱石的制备研究是当前最有吸引力的研究方向 ,铝多核羟基金属阳离子或有铝参与的多核羟基双金属阳离子柱化剂的研究制备是当前主要研究课题 ,并有从制备单一铝多核羟基聚合金属阳离子柱化剂向制备铝和其它元素的多核羟基聚合金属阳离子柱化剂的方向发展的趋势 ;(3)在寻求新催化剂载体中 ,伊 /蒙间层等矿物的层柱化显得尤为重要 ,用高岭土作催化裂化催化剂载体 ,在目前和将来的一段时间内仍将发挥重要作用 ,高岭土的成因、矿物成分、杂质含量、结构羟基的热稳定性以及物理性质等对催化特性均有影响 ,并有可能从中寻找到无活性载体。
TiO_2 pillared clays were prepared by Sol-gel method at certain ratio of Ti(OC_4 H_9)_4 to HC1 modified by three different kinds of surfactants, such as polyvinyl alcohol (PVA), cetyltrimethyl ammonium bromide (CT-MAB) and dodecyl benzene sulfonic acid sodium salt (DBS).
本文分别采用阴离子、非离子、阳离子三种不同类型的表面活性剂对河北蒙脱石进行改性修饰，并以酞酸丁酯和盐酸分别为前驱物和酸催化剂，采用溶胶-凝胶法(Sol-gel)制备了不同表面活性剂修饰TiO_2柱撑粘土催化剂。
Study situation of pillared clay and its applications in the environmental pollutants treatment;
柱撑粘土复合材料的研究进展及其在环境污染物治理方面的应用
The pillared clay developed nanostructure when calcinated at 1100℃,which hada dimaeter of about 100~500nm for mul-lite and less than 100nm for spinel.
将聚羟基铝离子引入蒙脱石层间,制成柱撑粘土,将柱撑粘土在1100℃下煅烧,在煅烧过程中会形成纳米结构。
Bimetal pillared clays with more amount of nickel was first prepared with a new method-growth.
生长法制得高镍含量二元金属柱撑粘土其插入粘土层间的柱高约 0 。
Retardation capability of clay-solidified grouting curtain by column test;
土柱试验研究粘土固化注浆帷幕的阻滞性能
methylated albumin-kieselguhr column
甲基化清蛋白硅藻土柱
Research on the Concrete Quality Control of Concrete-filled Steel Tubular Structure
浅谈钢管混凝土柱柱芯混凝土质量检测
One of the commonest foundations is that for a concrete column or a steel stanchion. It is generally designed for the same maximum load as the column, and usually is an independent (pad) foundation.
最常见的基础是混凝土柱或钢支柱的基
One of the commonest foundations is that for a concrete column or a steel stanchion.
最常见的基础之一是混凝土柱或钢支柱的基
Research on the Loaded Property of Through Columns Joint in the Composite Frame Consisting of Steel Beams and Reinforced Concrete Columns;
钢梁—钢筋混凝土柱柱贯穿型节点受力性能研究
Research on the Aseismic Behavior of the Penetrating Column Joint of Reinforced Concrete Column and Steel Beam
钢梁-混凝土柱柱贯穿型节点抗震性能研究
The application comparison of concrete filled steel tubes pole and formed steel pole in factory building
钢管混凝土柱和型钢柱在厂房中的应用比较
Shear Behavior of Exterior RCS Beam-Column Connections
钢梁-钢筋混凝土柱梁柱边节点抗剪性能分析
Concrete column as substitute for ore pillar in room-and-pillar mining
人工混凝土柱代替原生矿柱在房柱法开采中的应用
Study on Concrete-filled Square Steel Tubular Column and L-shaped Column Composed of Concrete-filled Square Steel Tubes;
方钢管混凝土柱和L形截面方钢管混凝土组合异形柱研究
The Study of Local Pressure of Open Steel Tube Confined Concrete Column and Iterative Steel Tube Confined Concrete Column;
开口钢管混凝土柱及叠合开口钢管混凝土柱的局部受压试验研究
Seismic behavior of steel-tube reinforced-concrete(STRC) and steel reinforced-concrete(SRC) columns
钢管约束钢筋混凝土柱与型钢混凝土柱滞回性能试验研究
NEW PROGRESS ON STUDIES OF HPC COLUMNS AND FRAMES
高性能混凝土柱与框架研究的新进展
Study on Mechanic of Concrete Filled CFRP-Steel Tube Column;
CFRP钢管混凝土柱的力学性能研究
Study on Design Theory of RC Flat Plate Structure with Special Columns
钢筋混凝土异形柱—板柱结构设计理论研究
Experimental Investigation on Reinforced Concrete Frames of "Stronger Beam with Weaker Column" and "Strong Column with Equally Strong Beam";
“梁强于柱”、“等强梁柱”混凝土框架试验研究
Exploration into replacement of steel masts by lateral web - stiffened pre - stressed concrete masts;
横腹杆式预应力混凝土支柱代替钢支柱的探讨
Analysis on loading capacity of high-strength concrete crossform special shaped columns' joint
高强混凝土十字形异形柱梁柱节点承载力分析