土柱

Batch experiments and soil column experiments were performed to study desorption and leaching of Fluoranthene from soil amended with sewage sludge compost.

以荧蒽为多环芳烃的代表，通过序批试验及土柱淋洗试验研究了污泥堆肥及污泥堆肥水溶性有机物对污染土壤中荧蒽解吸和淋滤的影响。

In our studies,sludges composting was used as object, fluoranthene was on behalf of PAHs,and methods included dynamic sampling,room analysis,sludges' composting,leaching of soil column,and room culture were employed. The main contents include:the concentration and the distribution of PAHs in municipal sludges in Jiangsu Province,effects of composting on the concentration of PAHs in municipal sludges,the physicochemical properties of water dissolved organic matters in sludges before and after composting,effects of sludges composting and DOM on the desorption-leaching and eco-toxicity of FLT in polluted soil,and primary investigation of mechanism on same phenomena.

本论文以污泥堆肥为原料，以荧蒽(fluoranthene，FLT)为PAH的代表，采用动态取样、室内分析、污泥堆肥、土柱淋滤和室内培养等方法，系统研究了江苏城市污泥中PAHs的含量以及分布模式；堆肥对污泥中PAHs含量的影响；污泥堆肥前后水溶性有机物的理化性质特征变化；污泥堆肥对污染土壤中FLT解吸-淋滤、以及生态毒性的影响，并对有关现象进行了机理探讨。

By leaching experiment in soil columns, the purification and migration characteristics of arsenic in loessial soil were stud-ied.

通过土柱淋滤试验，从动态角度研究了黄土性土壤对砷的净化作用及迁移规律。

By the leaching experiment of soil column, the purification of loessial soil to Cr and its migration characters were studied from dynamic researches.

通过土柱淋滤试验，从动态角度研究了黄土性土壤对Cr的净化作用及迁移规律。

By the leaching experiment of soil column, the purification of loessial soil to Cr and its migration characters were studied from dynamic researches.

通过土柱淋滤试验，从动态角度研究了黄土性土壤对Cr的净化作用及迁移规律。研究结果表明：黄土性土壤对Cr是逐步地均匀地吸附的，直到吸附饱和。

By the infiltration test of soil column, the author concludes that Cr and As has the following migration patterns by dynamic researches. 1 The absorption and migration of Cr and As in loessial soil relate to content of mucilaginous grain.

4通过土柱淋滤试验，从动态角度研究得出铬、砷在黄土中具有以下迁移规律及特点：①Cr、As在黄土中的吸附和迁移与土壤中的粘粒含量有关。

Three analytical solutions are given including the wet front analysis solution of double medium soil column,the analytical expression of piezometric tube water head and saturation for steady state and the analysis solution of seepage in unconfined aquifer with a periodic boundary condition.

推导了双介质土柱表层水入渗的下渗锋面解析表达式、稳定状态时测压管水头分布与饱和度分布的解析表达式，并给出了有周期性边界条件的有限潜水层内渗流自由面的解析表达式。

Under the good drainage condition, when degree of mineralization in the return water was less than soil salineness, irrigation with the return water can make soil desalinited evidently.

通过利用低矿化度回归水的土柱模拟实验研究表明，在排水较好条件下，含盐1.3—1.6g／L的低矿化度回归水灌溉可使中轻度盐渍化土壤脱盐。

Study on effect of using sulfur-removal waste residue to improve the alkaline siol in the method of siol column indoor.

本文对煤烟脱硫废渣改良碱土进行了理论研究，方法上以室内土柱淋溶模拟为主。

Combinating the siol column and potted plant experiment synthesize analysis that the soil alkalinity below 30% can be all improved by hydraulic and agricultural measure without the chemical amendment. When the alkalinity is over 30%, however, the alkaline soil must be made use of the chemical measure gathering water conservancy to attain improvement .

结合土柱试和盆栽试验的结果综合分析，在土壤碱化度低于30%的轻、中度碱化土壤通过水利与农业措施相结合的办法而不用化学改良剂就可以改良好；而碱化度大于30%的土壤，必须在水利措施的配合下，利用化学改良剂才能达到改良的目的。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了