1) adsorption and desorption
吸附解吸
1.
The migration characteristics of hazardous elements such as Pb,Th,U,Be,Zn,Ni,Co,Cd,Cu,As,Cr,V and Ba in acid coal mine drainage were studied by adsorption and desorption experiments.
利用电感耦合等离子质谱(ICP-MS)、离子色谱(IC)和X射线衍射(XRD)等方法研究了马兰煤矿酸性矿井水及其沉淀物的化学成分和物相组成,并通过吸附解吸实验和PHREEQC水化学模拟计算研究了典型酸性矿井水样品中Pb,Th,U,Be,Zn,Ni,Co,Cd,Cu,As,Cr,V,Ba等有害元素的迁移特性。
2.
After heavy metal entering into the soil, the first and inevitable course is "adsorption and desorption", which is one of the most important physical and chemical courses to control heavy metal activity of soil.
本论文对采集来的长江三角洲典型的土壤进行归类,研究发现,不同的土壤理化性质存在显著差异,表层土的有机质含量一般都要比心层土高,而心层土的pH值却比表层土高,正由于这种差异,造成对Cu的吸附解吸也有差异。
2) adsorption-desorption
吸附解吸
1.
A series of leaching experiments are conducted to research the leaching mechanism of pollutants from coal waste rock in Jiaozuo mine field and their adsorption-desorption behaviors in soil, and coal waste rock and soil are sampled from several coal mines in Jiaozuo.
以焦作矿区煤矸石和土壤为研究对象,进行室内模拟淋滤实验,检测淋出液中SO42-、Cl-、总硬度、Cr、Pb、Zn、Mn、Cu、Cd等污染组分的含量以及pH、电导率,分析研究煤矸石在淋滤作用下污染组分的溶出规律以及土壤对污染组分的吸附解吸。
2.
The properties of sulfate adsorption-desorption by soils in South China were studied by means of equilibrium test.
采用固相组分连续提取和单独组分分析相结合的方法，研究了有机质、活性氧化物、晶态氧化物等土壤固相组成分在南方土壤硫酸根吸附解吸中所起的作用。
3.
The properties of sulfate adsorption-desorption by soils in South China was studied by means of equilibrium test.
通过 8种典型土样的硫酸根吸附解吸实验 ,研究了我国南方土壤硫酸根的吸附解吸特性 ,并运用Freundlich、Langmuir和Temkin等温方程对试验数据进行了拟合 。
3) sorption and desorption
吸附解吸
1.
Effects of pH and salinity on phosphorus sorption and desorption in the surface sediments of the mainstream of the Haihe River
pH和盐度对海河干流表层沉积物吸附解吸磷(P)的影响
2.
The sorption and desorption behavior of naphthalene and 2,6-di-tert-butyl-p-cresol(BHT)on sediment from the Yellow River Lanzhou part was studied.
采用室内实验方法,研究了萘和叔丁基酚在黄河兰州段水体颗粒沉积物上的吸附解吸特性。
3.
Irrigation not only reduced the soil available phosphorus content,but also changed the characteristics of phosphorus sorption and desorption of different soils.
灌溉不仅降低了不同土壤有效磷含量,而且使土壤磷素吸附解吸特征发生明显改变。
4) Sorption-desorption
吸附解吸
1.
Sorption-desorption play a dominant role in the plant nutrition and pollution control.
本文使用序批实验方法、单步提取方法、连续提取方法、相关性分析等方法研究了西北干旱区绿洲灌漠土重金属的吸附解吸机理,包括灌漠土对单个重金属的吸附解吸研究、灌漠土对复合重金属的吸附解吸研究以及灌漠土重金属Cu、Ni的解吸与小麦吸收重金属Cu、Ni的相互关系。
5) absorption-desorption
吸附解吸
1.
The application of active carbon absorption-desorption process for oil vapor recovery in the oil loading platform of SINOPEC Yanshan Petrochemical Company and process flow are described,and the techni- cal bottleneck in operation is analyzed.
介绍了活性炭吸附解吸油气回收技术中国石化北京燕山分公司装油站台应用的原理和工艺流程。
2.
Based on diffusion,absorption-desorption,distribution and solid-water interface biodegradation of organic pollutants in solid-water environment,a nonequilibrium dynamic model of organic pollutants translate and migration in multimedia environment was developed in this paper.
在综合考虑有机污染物在土壤 -水环境体系中扩散、吸附解吸、分配以及土壤 -水界面微生物降解条件下 ,建立了环境介质中有机污染物迁移转化的非平衡动力学模型 ,并编制相应的有限元程序 ,利用该程序对落地原油在土壤中迁移转化非平衡模式与平衡模式进行对比模拟分析 ,探讨了模型参数kd、λ、λ 的变化对有机污染物迁移的影响 ,为定量研究土壤中有机污染物在土壤 -水环境中分配与归宿提供了可靠的理论依据 ,同时为土壤环境质量评价及污染预测、预报与污染防治提供科学的根据与途径 。
6) sorption-desorption
吸附-解吸
1.
With batch method, this paper studied the sorption-desorption behaviors of Cd and Pb in soils with heavy, medium, and slight pollution loads.
采用一次平衡法,对3种不同污染负荷土壤Cd2+和Pb2+的吸附-解吸行为进行了比较。
补充资料：土壤磷素吸附和解吸作用
土壤磷素吸附和解吸作用
adsorption and desorption of phosphorus in soil
磷与一OH基或一0H2其过程如下: (1)HZPO不和0H2进行配位交换而被专性吸附。交换即: OH] \/l M} /\lo/0H2曰\OH \/+H:PO一se/\0H2」 O H 十一﹁|l||习OH/\ 《)-P-心 /\OH OHOH M\\/\ O M/\ 0H:」(2)或者HZPO不和OH一交换，即Ho/ M \+HZPO不—一|一| HH/00\/ M/\/ 00H2 片 O 十刁|lwe|10H2\/\ (卜一P-城〕 /\OH OH OH一 /M \ 0H2一 \/ 0 过程(l)并不伴随着溶液的pH值改变，过程(2)可使溶液的pH值上升. 上述两过程的产物，随着时间的延续，都可以变为环状结构: OH+HZO;二二二已 OH一/\ OH:一 MM\/\/ 0+ZH:0/\/\ 0H21，，土城麟素吸附和解吸作用(adsorp‘on anddesorption of Phosphorus in 5011)土壤溶液中的碑酸离子被土城固相所吸持，谓之吸附。其逆向反应谓之解吸.吸附和解吸开始时都是发生在土壤固、液相的界面上.吸附作用可以发生在具有不变电荷土粒的表面(如结晶态的粘土矿物)，也可以发生在可变电荷的土粒表面(如铁铝氧化物、土壤有机质和方解石等物质)上。 碑素吸附土城对碑酸离子的吸附，分为物理吸附(非专性吸附)和化学吸附(专性吸附). 物理吸附当土城溶液的pH值低于土壤吸附剂的等电点时，吸附剂上的一OH墓被质子化: Me一OH+H+一Me一0H2+而后带正电荷的表面因静电引力吸引带负电的磷酸离子。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条