1) pre-sorption
磷预吸附
1.
The results showed adsorption of Cu~ 2+ by the paddy soil (including pre-sorption of phosphor) could be best described with the Freundlich isotherm curve.
结果表明,水稻土(包括磷预吸附)对Cu2+吸附均以Freundlich方程拟合最佳。
2) phosphate adsorption
磷吸附
1.
The effect of several organic acids on phosphate adsorption in brown red soil and its coating with aluminum hydroxides was studied by isothermal equilibrium method.
结果表明：供试１ｍｍｏｌ／Ｌ、８ｍｍｏｌ／Ｌ有机酸都使土壤（原状土或包被土）的磷吸附量降低，同一浓度下，其降低顺序是柠檬酸＞草酸＞酒石酸＞苯甲酸≥乙酸；加入柠檬酸、草酸浓度在１～８ｍｍｏｌ／Ｌ范围内，土壤吸附磷量随有机酸浓度增高而下降，但包被土的下降幅度较小；加入柠檬酸和草酸浓度为１、４ｍｍｏｌ／Ｌ，磷浓度为８０ｍｇ／Ｌ时，随有机酸溶液ｐＨ升高，土壤吸磷量出现“低→高→低”的变化，原土峰值出现在有机酸溶液ｐＨ８～９时，铝包被样峰值出现在起始ｐＨ４左右；有机酸先于磷加入到土壤时，对土壤吸磷量的影响比两者同时加入的大，反之则影响最小，加有机酸并离心弃去清液再加磷，土壤吸磷量比加有机酸而不离心的高。
2.
A series of hydrotalcite-like compounds(HTALs) were made by coprecipitation with divalent ions(Mg~(2+),Zn~(2+),Cu~(2+),Ni~(2+) and Co~(2+)) and trivalent ions(Al~(3+) and Fe~(3+))in order to be applied in phosphate adsorption as a new sorbent.
为了开发一种新型除磷吸附剂,将二价金属离子(Mg2+、Zn2+、Cu2+、Ni2+、Co2+)和三价金属离子(Al3+、Fe3+)分别组合,用共沉淀法制备了不同金属组成的类水滑石,研究了类水滑石及其焙烧产物的磷吸附效果。
3) phosphorus sorption
磷吸附
1.
Study on the phosphorus sorption-desorption characteristics of red soils and its environmental impact;
红壤磷吸附解吸特性及环境效应研究
4) phosphorus adsorption
磷吸附
1.
Characteristics of phosphorus adsorption in urban landscape water by three types of fly ash were studied.
研究了三种常见的中、低钙粉煤灰的磷吸附特性。
2.
Phosphorus adsorption data of rhizosphere and non-rhizospher.
对滨海脱盐土壤上11年生1-69杨根际、非根际土壤磷吸附特性进行了研究。
5) P adsorption
磷吸附
1.
Liquid flow method was used to investigate the kinetic characteristics of P adsorption in purple paddy organo mineral complex for the first time.
结果表明，在反应的２ｈ内，灰棕紫泥低肥力水稻土和红紫泥低肥力水稻土的有机无机复合体磷吸附过程以复一级反应为特征。
2.
The continuous shaking trials were conducted to preliminarily study the effect of the different water-dissolved organic polymeric compounds-polyvinylalcohol (PVA), polyacrylamide (PAM) and polyethyleneglycol (PEG), on the kinetics of P adsorption in red soils.
结果表明:在聚乙烯醇、聚丙烯酰胺和聚乙二醇作用下土壤磷吸附动力学以幂函数方程为最优方程,且方程参数与单施磷酸二氢钙的处理方程参数有显著差异性。
3.
The changes of total reducing substances (TRS), oxalate extractable Fe (Fe o), dithionite citrate bicarbonate extractable Fe (Fe DCB ) and phosphorus adsorption (P adsorption) in oxic and anoxic layers of two paddy soils during 6 week flooding were examined under laboratory conditions.
在实验室条件下对两种水稻土在为期 6周的淹水过程中 ,其氧化层和还原层土壤中还原物质总量 (TRS)、草酸盐可提取铁 (Feo)、连二亚硫酸钠 -柠檬酸 -碳酸氢钠可提取铁 (Fe DCB)和磷吸附的变化进行了研究 。
6) P sorption
磷素吸附
1.
Changes in P sorption and its relation to P forms and soil properties under long-term fertilization (1985-1997) were investigated in continuous winter wheat ( Triticum aestivum L.
在黄土旱塬区长期试验(1985-1997年)中,选取对照(不施肥,CK)、磷肥(P2O5 60 kg/hm2,P)、氮肥(N 120kg／hm2,N)、氮磷(N,120 kg／hm2,P2O5,60 kg/hm2,NP)、氮磷有机肥(N 120 kg/hm2,P2O560 kg/hm2,有机肥75 t／hm2,NPM),种植方式为冬小麦连作的5种有代表性的施肥处理,研究了石灰性土壤磷素吸附特性的演变及其与土壤磷素形态、土壤有机碳(SOC)含量的关系。
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