WE Credit 2

Water efficiency

Innovative wastewater technologies

PROPOSED SOPREMA SOLUTION:

• SOPRANATURE Green roof systems: With SOPRANATURE, it is therefore possible to make direct use of rainwater (considered grey water) for irrigation of vegetation, which reduces the use of potable water. Moreover, by carefully selecting plants that require a minimum of water, you will save even more on the use of potable water.

INTENT:

To reduce wastewater generation and potable water demand while increasing the local aquifer recharge.

Since some of the rain is kept in the growth medium to be used by plants and later released into the atmosphere through evapotranspiration, green roofs delay and reduce the runoff flow rate into sewer systems. This reduces the risk of overflow in ageing stormwater sewer systems.

POTENTIAL TECHNOLOGIES AND STRATEGIES
Specify high-efficiency fixtures and dry fixtures (e.g., composting toilet systems, non-water-using urinals) to reduce wastewater volumes. Consider reusing stormwater or greywater for sewage conveyance or on-site mechanical and/or natural wastewater treatment systems. Options for on-site wastewater treatment include packaged biological nutrient removal systems, constructed wetlands and high-efficiency filtration systems.