搜索结果: 1-15 共查到“理学 Leaching”相关记录17条 . 查询时间(0.046 秒)
Effect of Tetrachloroethylene on Sphalerite Leaching
sphalerite leaching sulfur layer tetrachloroethylene
2009/11/16
The effects of tetrachloroethylene (C2Cl4) on sphalerite leaching in FeCl3-HCl were investigated in view of simultaneous mass transfer and reaction, and the leaching models with and without organic so...
Movement and leaching of residual nitrogen in soil has been studied in some
details in a lysimeter experiment. Profile measurements of soil water and of
nitrogen concentration in addition to measure...
Leaching of Phosphate in Structured Soil–a Two Step Process
Leaching of Phosphate Structured Soil Two Step Process
2009/10/23
This paper summarizes a series of experiments on P-leaching in structured
clayey soil, mostly conducted on intact soil columns with diameter 0.5 m, and
length 0.5,0.73 or 1.0 m. Breakthrough curves ...
Prediction of chloride leaching from a non-irrigated, de-watered saline soil using the MACRO model
chloride de-watered saline soil non-irrigated MACRO model
2009/6/8
A pedon scale study was conducted to investigate the degree of chloride leaching from a de-watered saline soil profile in the non-irrigated wheatbelt region of south-western Australia. Within the surf...
Applying MERLIN for modelling nitrate leaching in a nitrogen saturated Douglas fir forest in the Netherlands after decreased atmospheric nitrogen input
refractory organic matter atmospheric nitrogen input nitrate leaching
2009/6/5
The MERLIN model was applied on the results of a field-scale manipulation experiment with decreased nitrogen (N) deposition in an N saturated forest ecosystem in the Netherlands. The aim was to invest...
Nitrogen leaching from N limited forest ecosystems：the MERLIN model applied to Gårdsjön, Sweden
Nitrogen Sweden forest ecosystems
2009/6/5
Chronic deposition of inorganic nitrogen (N) compounds from the atmosphere to forested ecosystems can alter the status of a forest ecosystem from N-limited towards N-rich, which may cause, among other...
Trends in nitrogen deposition and leaching in acid-sensitive streams in Europe
Europe acid deposition nitrogen
2009/3/23
Long-term records of nitrogen in deposition and streamwater were analysed at 30 sites covering major acid sensitive regions in Europe. Large regions of Europe have received high inputs of inorganic ni...
Excess nitrogen leaching and C/N decline in the Tillingbourne catchment, southern England: INCA process modelling for current and historic time series
acid deposition recovery nitrogen Carbon-Nitrogen ratios
2009/3/17
Measurements of nitrate deposition and streamwater chemistry in the Tillingbourne Catchment, in Southern England, made in 1979-1982 and 1999-2001 show a 216% increase in Nitrogen leaching despite a r...
Quantification of nitrate leaching from forest soils on a national scale in The Netherlands
soil modelling up-scaling
2009/3/6
To evaluate the effects of nitrogen (N) emission policies, reliable information on nitrate concentrations and leaching fluxes from forest ecosystems is necessary. Insight into the regional variability...
WANDA, a regional dynamic nitrogen model (With Aggregated Nitrogen DynAmics) for nitrate leaching from forests
nitrogen nitrate forest model
2009/3/6
Nitrate concentrations in recently infiltrated groundwater in forested areas in the Netherlands are slowly increasing towards the EU limit of 50 mg NO3 l–1. The origin of this nitrate is thought to be...
CO2 enrichment increases nutrient leaching from model forest ecosystems in subtropical China
CO2 enrichment nutrient leaching model forest ecosystems subtropical China
2010/1/18
The effect of high atmospheric CO2 concentrations on the dynamics of mineral nutrient is not well documented, especially for subtropical China. We used model forest ecosystems in open-top chambers to ...
Acid Leaching of Leather Tanning Sludges: Metals Behaviour
Leaching Leather Tanning Sludge Valorisation
2011/12/15
Sludges generated in leather tanning processing are very complex wastes with potential deleterious effect on the environment and its management constitutes a high cost for the companies. In this work,...
期刊信息
篇名
Leaching of minerals and heavy metals from muck-amended sandy soil columns.
语种
英文
撰写或编译
作者
Zhang,M. K.,Z. L. He,D. V. Calvert,and P. J. Stoffella.
第一作者单位
刊物名称
Soil Sci
页面
169: 528-540 (2004).
...
期刊信息
篇名
Nonlinear dynamics of flow-reaction coupling in porous media and application to in-situ leaching uranium mining
语种
英文
撰写或编译
作者
谭凯旋,王清良,刘泽华,胡鄂明
第一作者单位
刊物名称
International Journal of Modern Physi...
Determination of Calcium, Magnesium and Aluminium in Magmatic Rocks after Ultrasonic Leaching by Flame AAS
Ultrasonic metal leaching partial leaching magmatic rocks flame-AAS
2010/4/22
A method of ultrasonic leaching has been developed for the destructive analysis of magmatic rock samples1. This method was applied to determine three new elements, Ca, Mg and Al, in magmatic rock samp...