POLLUTE 是一款快速，准确，全面的污染物运移分析软件，新版本为7.13。POLLUTE被广泛用于垃圾填埋设计和环境补救领域，它具备快速、准确和全面的污染物运动的分析能力，可将一个 1.5 维度的解决方案运用到对流 - 扩散方程中。与有限元和有限差方程不同的是，POLLUTE不需要时间推进步骤，因此既降低了计算工作量，又避免了替代数值不稳定问题的产生。

POLLUTE在工业领域已有15年以上的应用，它是一种经过充分测试的污染物迁移分析程序，已广泛用于垃圾掩埋场设计和修复中 。可以考虑的垃圾填埋场设计范围包括从天然粘性含水层上的简单系统到复合衬垫、多重屏障和多重含水层。

主要特性：

1、非线性吸附作用；

2、反射性和生物过程的腐烂；

3、通过断面的传输；

4、被动沉降，相变；

5、随时间变化的特性。

可以使用程序向导或通过选择许多预先创建的模型中的一个来从头开始创建模型：例如，主衬垫填埋场和次衬垫填埋场。垂直迁移和水平迁移。

特征：

POLLUTE程序使模型的创建，编辑，执行，打印和显示变得非常容易和灵活。可以使用程序向导或通过选择许多预先创建的模型之一从头开始创建模型。

POLLUTE V7基于用于数据存储的项目概念，其中用户拥有许多项目，并且在每个项目中都有许多模型。使用此方法，Microsoft Access 2000数据库用于存储每个项目。每个项目都存储在单独的目录中，该目录可以位于同一台计算机上，也可以分布在整个网络中。主数据库用于跟踪项目及其位置。该主项目数据库还用于存储所有项目通用的数据（例如符号库）。

以下功能支持项目的创建和编辑：

• 存储在Access 2000数据库中的项目
  

• 项目数量***制

• 可以轻松创建新项目

• 项目目录是自动创建的

• 可以删除项目，包括项目目录
  

• 可以导入其他计算机上的项目

• 项目可以导出到其他计算机

• 可以自动备份项目

• 备份的项目可以还原

• 程序版本6中的模型数据可以导入到项目中

模型用于表示地下岩性，围绕系统和要研究的污染物源。这些模型可用于研究垃圾填埋场，掩埋垃圾，溢出物，泄湖，屏障系统等的影响。每个研究区域应分组为一个或多个项目。项目用于在研究区域中存储一个或多个模型。创建模型后，可以运行该模型以计算***深度和时间的污染物浓度。

POLLUTE V7的一些功能：

• 使用空白模型，向导或快速输入模型可以轻松创建新模型。
  

• 模型的图形图在创建时显示

• 模型可包含200个图层

• 层可包含1,2或3维裂缝

• 可以为每个层***扩散系数，分配系数和相变参数

• 顶部边界条件可以是灵通量，恒定浓度或有限质量

• 底部边界条件可以是零通量，恒定浓度，固定流出或***厚度

• 地下浓度可以在***的时间计算，或者程序可以自动找到大浓度的时间
  

• 可以模拟污染物的放射性或生物衰变

• 可以***在***深度处的初始浓度分布

• 可以模拟Freundlich和Langmuir非线性吸附

• 源，速度和图层属性可以随时间变化（可以使用源，障碍或流模式中的模型更改）

• 可以***一个或多个被动水槽来模拟层中的水平速度和污染物的去除

• 蒙特卡罗模拟可用于评估模型参数的不确定性的影响

• 当参数值未准确知晓时，灵敏度分析可用于预测预期的浓度范围

输出功能：

模型的输出可以导出为19种不同的格式，包括：

• ASCII
  

• Excel

• Access

• Rich text format

• Adobe pdf

• Lotus 123

• Paradox

• HTML

除了模型的计算结果外，导入的输出数据还可以显示在浓度对深度和浓度对时间图上。导入的数据可以来自其它模型，实验结果或理论结果。导入的数据可以从文件，项目中的其他模型中提取，也可以直接创建和输入。输入导入的数据后，可以对其进行编辑和删除。

系统要求

• Windows 98 / NT / 2000 / XP或更高版本

• 64 MB的可用硬盘空间

• 128MB的RAM

• CD或DVD驱动器

【英文介绍】

POLLUTEv7 program provides fast, accurate, and comprehensive contaminant migration analysis capabilities. This program implements a one and a half dimensional solution to the advection-dispersion equation. Unlike finite element and finite difference formulations, POLLUTEv7 does not require a time-marching procedure, and thus involves relatively little computational effort while also avoiding the numerical problems of alternate approaches.

With more then fifteen years utilization in industry, POLLUTEv7 is a well tested contaminant migration analysis program which is widely used in landfill design and remediation. Landfill designs that can be considered range from simple systems on a natural clayey aquitard to composite liners, multiple barriers and multiple aquifers.

In addition to advective-dispersive transport, POLLUTEv7 can consider

·     non-linear sorption

·     radioactive and biological decay

·     transport through fractures

·     passive sinks

·     phase changes, and

·     time-varying properties.

 POLLUTE Data Entry 

    Using the main menu bar at the top of the screen, datasets can be created, edited, and executed. The output from these datasets can then be displayed and printed.

POLLUTE Deposit Data 

Datasets can be created or edited using the Data Menu. A dataset consists of general deposit data, layer data, boundary conditions, and optional special features.

First, general data is entered about the model, such as:

·     Title of the Dataset

·     Number of Soil Layers (each layer can have different properties)

·     Darcy Velocity through the soil layers

·     Laplace Transform Parameters (defaults are usually sufficient)  

POLLUTE Layer Data 

For each layer, the following may be specified:

·     Number of Sublayers

·     Thickness

·     Dry Density

·     Coefficient of Hydrodynamic Dispersion

·     Distribution Coefficient

·     Type of Fractures (if present)

Any or all of the layers may be fractured. These fractures may be one, two, or three dimensional. In a fractured layer, the program considers advective-dispersive transport along the fractures coupled with diffusion into the matrix on either side of the fracture

POLLUTE Boundary Conditions

There are two boundaries for each dataset, one at the top and one at the bottom of the layers. The top boundary is usually the point of contact with the contaminant source (finite mass or constant concentration), and the bottom boundary is usually the point of contact with an aquifer (fixed outflow) or bedrock (zero flux).

Finite Mass Boundary Condition 

The finite mass boundary condition may be used to represent contaminant sources such as landfills. Where the mass of contaminant is finite, the concentration of contaminant at the source will decline as contaminant mass is transported into the layers below or is removed by a leachate collection system.

Fixed Outflow Velocity Boundary Condition 

This boundary condition may be used to represent an aquifer below the layers in the dataset. The concentration in this aquifer will vary with time as mass is transported into the aquifer from the layers above and is then transported away by the horizontal velocity in the base strata.

POLLUTE Special Features

In addition to the basic data parameters, many special features can also be used in the model. One or more of these special features may be selected from the multiple choice menu.

Radioactive/Biological Decay 

Radioactive or biological decay can be modeled. First-order decay is considered by specifying the half lives for the source, layers, and base aquifer. The layers may have the same half-life, or the half-life can be specified as a function of depth.

Depth Interval Concentration Profile 

To model background concentration in the layers, an initial concentration profile may be used. Using this option, the initial concentration in the layers can be specified as a function of depth. In addition, the flux into the soil and the base can be specified at the start time of the model. 

Freundlich and Langmuir Nonlinear Sorption 

Either Freundlich or Langmuir nonlinear sorption may be considered. When nonlinear sorption is used, the program splits the layers into sublayers and uses an iterative technique to determine the equivalent linear distribution coefficient for each sublayer.

Properties Increment Within Groups 

This option is used to vary properties of the model with time. The user may vary the source concentration, contaminant mass, volume of leachate collected, Darcy velocity, dispersivity and aquifer velocity. For example, this option can be used to simulate the progressive failure of the leachate collection system in a landfill. Time is divided into groups. In each group the properties may be constant with time or may increment linearly with time. The concentration in the source at the beginning of each time group may be specified or the concentration at the end of the last group may be used.