PT EN

Usage of WWTP water in Urban Washing of Cascais

Thematic Area
Water and Cities
Location
Cascais
Application Areas
Water Resources
Scope
Local or Regional Administration

Entity

Description

The washing of the streets, fairgrounds and tunnels has 42 circuits, realized by 7 workers and 4 drivers, effected with 5 water tander and 2 vacuum washer.
Since May 2015, Cascais Ambiente has used in this service wastewater treated from Guia's WWTP, currently using about 10,000 m3 / year.
This measure, besides minimizing the environmental impact of the company, by reducing the consumption of drinking water in this operation, is an economically advantageous alternative.

Objectives

  • Protection of natural resources, including water resources

Results

Since May 2015, Cascais Ambiente has reused in this service wastewater treated from Guia's WWTP, currently using about 10,000 m3 / year.
This measure, besides minimizing the environmental impact of the company, by reducing the consumption of drinking water in this operation, is an economically advantageous alternative.

Next challenges

There are other services provided by Cascais Ambiente, which currently use large quantities of drinking water, namely irrigation of urban green spaces or even container washing, we are currently assessing the technical implications of the use of wastewater treated in these services as well as studying any legal limitations that may exist.