Wastewater treatment and recycling

DRACE medioambiente has the processes necessary to reclaim used water for irrigation, industrial applications, recreational areas, recharging aquifers and even domestic purposes. The new technologies we apply in the treatment of wastewater have achieved very high decontamination performance levels.

To preserve the environment, wastewater should be returned to the receiving channels in the best conditions. Given the diversity in process designs, types of wastewater and environmental conditioning factors, in-depth knowledge is needed to establish the most appropriate process for a water treatment plant. DRACE medioambiente´s extensive experience in this field enables us to assess the most appropriate techniques for treating water in order to optimize its quality as well as the investment and operation costs.

Furthermore, we have moved from the concept of wastewater treatment, as the solution to an environmental problem, to the concept of recycling, as the contribution of a new solution. This has been possible thanks to incorporating advanced tertiary treatments into wastewater plants that enable the treated water to be used for other purposes previously only covered by potable water.

In general, the basic tertiary treatments tend to consist of chemical processes followed by filtering through sand or other granular means and ending with disinfection by chlorine, ozone or ultraviolet light to eliminate pathogens. Other processes can be added such as chemocoagulation, flocculation, adsorption with activated carbon, filtering through membranes and ion exchange.

DRACE medioambientehas developed many processes currently being implemented in numerous projects.  Two of the most outstanding are the travelling-bridge sand filter designed by our technical department and ultrafiltration through spiral wound membranes in which we are world pioneers.

See references of wastewater treatment and recycling