Emoji ICM InfoWorks - ๐ŸŒ Model Inflow Guide ๐ŸŒ

 ๐ŸŒ Model Inflow Guide ๐ŸŒ


๐Ÿ’ง Determinant Inflows:

Your model's inflows can originate from multiple sources. Here's a breakdown:


๐Ÿ‚ 1. Surface Pollutants:

  • Sediment Buildup: Sediment accumulates on subcatchment surfaces throughout the simulation. This sediment can carry pollutants.
  • Sediment Fractions: Two distinct sediment fractions can be modeled, each having unique properties.
  • Dissolved Pollutants: These infiltrate the network via gully pots at each node.
  • Build-up Period: Execute a simulation for a build-up phase to stabilize sediment depth on the surface.
  • Surface Pollutant Model: Calculates sediment and pollutant inflow from catchment surfaces and gully pots.

๐Ÿšฟ 2. Wastewater Inputs:

  • Wastewater Profiles: These determine inflows from a subcatchment's population. You can define concentration, potency, and pollutant multipliers over time.
  • Data Needs:
    • Per capita flow ๐ŸŒŠ
    • Average sediment concentration ๐Ÿ–️
    • Average dissolved pollutant concentrations ๐Ÿงช
    • Average potency factors ๐Ÿ“Š
    • Multiplying factors ๐Ÿ”„
  • ๐Ÿ” More details in the Trade and Waste Water Events section.

๐Ÿญ 3. Trade Waste Inputs:

  • Trade Waste Profiles: Represent inflows from places like industrial premises.

  • Data Needs:

    • Average sediment concentration ๐Ÿ–️
    • Average dissolved pollutant concentrations ๐Ÿงช
    • Average potency factors ๐Ÿ“Š
    • Multiplying factors ๐Ÿ”„
  • ๐Ÿ” More details in the Trade and Waste Water Events section.


๐ŸŽฏ 4. Point Pollutant Inflows:

  • Pollutographs: These are specific inputs into the system, used along with inflow or level events.
  • Flexibility: Pollutographs offer more adaptability than regular wastewater events.
  • Usage: Model irregular pollutant inputs, such as weekly industrial tank flushes.
  • Content:
    • Sediment fraction ๐Ÿ–️
    • Dissolved pollutant ๐Ÿงช
    • Pollutant attached to sediment ๐Ÿชจ
    • Detrital pollutant ๐Ÿ‚

๐Ÿž️ 5. Sediment Fractions:

  • Description: Model two separate sediment fractions - Sediment Fraction 1 (SF1) and Sediment Fraction 2 (SF2).

  • Parameters:

    • D50: Average sediment particle size ๐Ÿ“ (default: 0.04mm)
    • Specific Gravity: Sediment density ๐Ÿ‹️ (default: 1.7)
  • ๐Ÿ” More details in the Sediment section.


๐ŸŒŒ 6. Conservative Determinants:

  • Modeling: Determinants are viewed as conservative, unless decay parameters are specified.
  • Interaction: These determinants don't interact with other variables and remain stable over time.

Explore these inflow sources to get the most accurate and comprehensive understanding of your model! ๐ŸŒŠ๐Ÿ”๐ŸŒ.