Natural waters contain micro-organism as well as solutes. There is a distinction between ‘pure’ water, meaning water that is fit to drink and pure water that is a single substance. A water pollutant is a substance that prevents the use ...
Pollutant emission rate (g/s): This is the pollutant emission rate. Decay coefficient (1/s): This coefficient considers the half life of the pollutant if this disappears by means of chemical reactions (non-conservative pollutant). ...
Here, only some data can be modified. The necessary data is: Pollutant emission rate (g/m s): This is the pollutant emission rate. Decay coefficient (1/s): This coefficient considers the half life of the pollutant if this ...
Area source.- This is a pollutant area source. The area width is small if we compare it with the size of the area in which we are simulating (area source). If you click this button, the next dialog box is shown: Here, only some data can be ...
7.1.4 Ambient data Ambient conditions are defined by the land and atmospheric conditions in the vicinity of the pollutant emission. This Menu lists: Meteorology and Topographic lines. Meteorology.- DISPER analyses, as all mixing ...
Wind angle (0 to 360 degrees): It is the horizontal angle of wind measured clockwise from the North (at the window top). Ambient temperature (K): The temperature of the medium surrounding an object. This is the air temperature at ...
Topographic lines.- This command is to draw topographical lines. If you click this command, the next dialog box is shown: The height of the contour line can be written in the textbox. If you click the Accept button, the next computer screen ...
Then, and if you click the computer screen and move the mouse (mouse down), a square is shown and when you mouse up (the height of the contour line is different to zero): 7.1.5 Tools The Tools Menu contains the tools you use to process ...
6.1.3 Point source The Point source Menu lists the possible pollutant sources: the outfall pipe. Outfall.- This is a pollutant point source. The outfall is small if we compare it with the size of the area in which we are simulating ...
Depending on the used model, some data of the dialog box can be modified: Buoyant jet model or Stratified model (see calculation models). Buoyant jet model: The necessary data in the Buoyant jet model is: Effluent velocity ua ...
Water depth at discharge location (m): The actual water depth at the sumerged discharge location. For surface discharges it is the water depth at the channel entry location. Discharge flow rate (m3/s): The discharge flow rate and the ...
Discharge conditions: There are three options: Vertical discharge, Horizontal discharge (A-type) and Horizontal discharge (B-type). In the vertical discharge, the discharge flow is perpendicular to the water surface. In the horizontal discharges (A ...
Stratified model: The necessary data in the Stratified model is: Pipe angle (0 to 360): It is the horizontal angle of discharge measured clockwise from the North (at the window top). Diffusor length (m): The diffuser length is the ...
1/T90 (1/seconds): This coefficient considers the half life of the pollutant if this disappears by means of chemical reactions (non-conservative pollutant). This is the T90 for E.Coli. For towns with less than 10,000 inhabitants we can take a T90=2 ...
If you click the OK button, the next program window is shown Two blue axis points the place where we can fix the outfall position. After clicking the program window, you draw the outfall. The small red square shows the outfall location. We ...
6.1.4 Current data Ambient conditions are defined by the hydrographic conditions in the vicinity of the discharge. This Menu lists: Current. Current.- DESCAR analyses, as all mixing zone evaluations, are usually carried out under ...
Canarina DESCAR software · sewage treatment · commands 28 Depending on the used model, some data of the dialog box can be modified: Buoyant jet model or Stratified model (see calculation models). Buoyant jet model: The ...
Canarina CUSTIC software · health effects from noise · commands 23 Noise power estimation: With this button, you can estimate the noise level if it is unknown. If you know the power, you don't need to use this command. You can write ...
7.1 Menu Bar Display the commands you use to build your simulation. When you choose one of the menus, the program displays a pull-down list of available commands. The program window has a basic tool bar under the Menu bar. The tool bar provides ...
7.1.1 File The File Menu contains the tools you use to open, close and save new and existing files, and import and export graphics. The File Menu lists: New, Open, Save, Import Picture, Export Picture, Print, Print Picture and Exit. New.- This ...