Description
Using the WEST designer tool is a straightforward process for evaluating steady state design using one of the following four processes:
Design of an MLE (COD and N removal) or A2O (COD, N and P removal) plant configuration based on the procedures described in Metcalf and Eddy’s Wastewater Engineering: Treatment and Resource Recovery, 5th edition
Design of an MLE or A2O plant based on ATV-DVWK-A131 (2001)
This is achieved using the following steps:
#01 Open the Designer tool from the Windows Start Menu or from the Tools Tab in the WEST Menu Bar
The Designer tool is a separate tool with a dedicated user interface that can be opened using the Windows Start Menu or directly from WEST, see Fig. 1.
Fig. 1 The Designer Tool is available as one of the WEST Applications
#02 Create a new project and select the desired configuration and standard to use
The Designer Tool supports MLE and A2O design, using either the Metcalf and Eddy, or the ATV design standards, see Fig. 2.
Fig. 2 Select desired configuration and standard.
#03 The Designer window will be displayed.
The Designer tool consists of three panes, see Fig. 3. One for input, one for outputs and one containing notes regarding the configuration and standard. The notes provide information for a specific section or property of the current design. For example, influent, primary settling or aeration.
Fig. 3 Designer window
#04 Change input parameters and simulate outputs
In the left-hand pane (Inputs), change the desired properties for your design.
Press the simulate button at the top left-hand corner.
Results will be displayed in the right-hand pane (Outputs), see Fig 4.
Fig. 4 Simulate steady-state design.
Conclusion
Creating and simulating a steady state design using for a particular configuration and standard in WEST is a seamless process.