The toxics model is built based on a sediment transport model which can be downloaded from our website.
This tutorial document will guide you how to setup a Toxics Model base on West Lake example. It is supposed that the sediment transport model of West Lake has been set and that toxics will be added to this model.
Open the West Lake Sediment Transport Model ( See Figure 1)
Figure 1 EE main form of West Lake Sediment Model.
The user go to Active Modules tab, check on boxes to activate toxics ( See Figure 2), the Toxics tab will be added to the left-side tab.
Figure 2 Activate Toxics Module.
Click Toxics tab on the left-side tab then click Modify button (See Figure 3). A form of Toxics and Sediment Bed Toxics Properties appear, the user put the number of Toxics.
Put number of toxics = 3 then press button from keyboard then click OK button to proceed process ( See Figure 4).
Figure 3 Editing Toxics Module (1).
Figure 4 Editing Toxics Module (2).
Three toxic transport parameters will be created from Toxic 1 to 3 and each toxic parameter will have a corresponding name in Toxic Name box. The user can put a desired name for each toxic parameter ( See Figure 5)
Figure 5 Editing Toxics Module (3).
Partition Coeffcients Tab
Select Toxic 1, put name as "Pesticides" in Toxic Name. Select DOC & foc*TSS (POC) option. Enter values for two table forms as shown in Figure 6.
Do similarly to Toxic 2 and Toxic 3 as shown in Fig. 7 & 8.
Figure 6 Toxic 1 Properties.
Figure 6 Toxic 2 Properties.
Figure 6 Toxic 3 Properties.
Loss Terms & Diffusion Tab
Figure 7 shows the tab for the Loss Terms & Diffusion of the Toxics properties option. In this tab the user may specify various parameters settings. Note that number of columns in the table form is equal to number of toxics. Put parameters' properties for three toxics as shown in Figure 7.
Figure 7 Toxics Loss Terms & Diffusion Properties.
DOC & POC Assignment Tab
Figure 8 shows the tab for the DOC & POC Assignment of the Toxics properties option. The user needs to assign concentration of DOC and POC in both water column and sediment.
Put options for DOC and POC as shown in Figure 8.
Figure 8 Toxics DOC and POC Assignment.
Initial Condition Options Tab
Figure 9 shows the tab for the Initial Condition Options of the Toxics properties option.
In Toxic Transport Parameters
Finally, click OK button to complete.
Figure 9 Toxics IC Options: Toxic 1
Figure 10 Toxics IC Options: Toxic 2
Figure 11 Toxics IC Options: Toxic 3
Figure 12 Toxics boundary conditions.
Figure 13 Data series for Toxic 1.
Figure 14 Data series for Toxic 2.
Figure 15 Data series for Toxic 3.
In order to assign the boundary, the following steps should be taken;
Figure 16 Edit Boundary Groups (1).
Figure 17 Edit Boundary Groups (2).
Figure 18 Assign Toxic Timeseries for "Cong Do".
Figure 19 Set # of Water Layers for Model.