Landcom Book 4 Maintenance - WSUD
Landcom Book 4 Maintenance - WSUD
Landcom Book 4 Maintenance - WSUD
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Water Sensitive Urban Design<br />
Water sensitive<br />
urban design<br />
elements are<br />
designed to detain<br />
pollutants from<br />
being discharged<br />
to the downstream<br />
watercourse.<br />
5.3 Waste Management<br />
and Disposal<br />
Water sensitive urban design elements<br />
are designed to detain pollutants from<br />
being discharged to the downstream<br />
watercourse. Vegetated <strong>WSUD</strong> elements<br />
such as constructed wetlands and<br />
bioretention basins use pollutants such as<br />
nitrogen and phosphorus in plant growth,<br />
minimising the build up of nutrients in<br />
the system. Conversely, suspended solids<br />
and gross pollutants cannot be used by a<br />
vegetated treatment system and hence<br />
accumulate and will eventually require the<br />
intervention of maintenance crews.<br />
Three types of waste are associated with<br />
<strong>WSUD</strong> elements:<br />
••<br />
Contaminated silt (sedimentation<br />
basins, constructed wetlands and<br />
ponds)<br />
••<br />
Spoiled filter media (bioretention<br />
basins)<br />
••<br />
Liquid waste from dewatering activities<br />
<strong>Book</strong> 4 | MAINTENANCE 35
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