Quick Scenario Builder - Wastewater Resources

This "Quick Scenario Builder" gives you a complete overview of total resources of treated wastewater as well as a single user interface to quickly build scenarios 2 and 3 out of data previously entered under scenario 1.

Only the coverage rate as principal parameter can be changed. However, in most cases it will be sufficient to recalculate WW-resources due to changed demands.

When the form opens, it shows data for the first balancing year.

A different balancing year is selected by year-selector on top of the form ,

The data table in the form shows the spatial selection (the individual treatment plant) and the total annual demand as saved in the STP file STP_WWTP as monthly volumes of each demand center.

The coverage rate shown on the right side is not a data table but rather a list box permitting the selection of records for updating.

Data manipulation is possible in 3 different ways:

  1. Fill data: For scenario 2 or 3 selected by the fill-button located under the column, data from scenario one are copied. This does not only include STP data, but log-table data as well. Afterwards, the display of demand volumes and irrigated areas is refreshed.
  2. Empty data: For scenario 2 or 3 selected by the delete-button located under the column, STP data are set to zero and log data are removed. Afterwards, the display of demand volumes and irrigated areas is refreshed.
  3. Recalculate data: The 3rd option is more complex. It makes only sense after the scenario has already been populated with data. You have to select one or more records in the list box (showing the coverage rate) and have to enter a new value, with which will replace the previous values. Select the option if only the year currently shown should be updated (this is the default), the year shown and the following years or even all years. After records have been selected and the multiplication factor has been set to a value <1, the hammer-button becomes enabled and can be pressed . This will recalculate coverage rate and total resources of treated wastewater in a simple way, by just replacing the coverage rate stored in the log tables by the new value and than recalculating the STP-data.