Antiscalant and SMBS Addition

WAVE provides the possibility for adding Antiscalants or SMBS (Sodium Meta-BiSulfite) in a similar manner to pH adjustment as shown below (and in Figure 1):

  1. Click on the Reverse Osmosis Tab if you are in a different Tab or Window.
  2. Select the Pass of interest (Pass 1 in WAVE).
  3. Click on the “Add Chemicals/Degas” button. The Chemical Adjustment Popup Window will appear. This Window includes options for adjusting pH, degasification, addition of Antiscalants/SMBS (only the 1st Pass), specifying the process temperature and Pass recovery. This Window also includes a Table with the Feed composition (before adjustment) and the Concentrate composition calculated by WAVE.

  4. Click on the “Anti-Scalant” and/or “SMBS” buttons. The gray dots on the buttons would turn green.
  5. Click on the entry fields for Anti-Scalant and/or SMBS and specify the desired composition in the Feed in mg/L. This would be reflected in the RO/NF/ROSC Process Flow Diagram after the user clicks
  6. OK” (arrows in the feed streams to each pass with named chemicals).
  7. Choose the appropriate chemical from dropdown list for Antiscalant and SMBS and click “OK”.

    Figure 1: Specification of RO/NF/ROSC System Antiscalant and SMBS Specification (a) Choosing “Add Chemicals/Degas” (b) Choosing Antiscalant/ SMBS (c) Specifying amounts and completion

Notes: