Gross Pollutant Traps

A gross pollutant trap is a treatment device designed to capture coarse sediment, trash and vegetation matter carried in the stormwater. music assumes that gross pollutant traps have very small pool volumes, and therefore, no hydrological routing is simulated within the GPT node.

In MUSICX, Generic Treatment Node is used for GPT. MUSIC requires you to describe the performance of the GPT (entered in a table) for each pollutant type, and does not provide default performance figures. The reason for this is that there are many GPTs available, including several proprietary products, which may perform very differently. Appendix C provides a summary of one study of GPT performance, undertaken by the CRC for Catchment Hydrology (Allison et al., 1996; Walker et al., 1999).

However, you are strongly encouraged to obtain independent, peer reviewed performance data from the specific gross pollutant trap proposed for a given site. You should be aware that any performance data provided represents a reasonable estimate of the likely long-term performance of the particular GPT.

Gross Pollutant Trap Properties

Please refer Generic Treatment Node.