Industrial effluent recycling

Wastewater · Sfax, Tunisie · 300 m³/day · 2022

Treatment and reuse of process water for an industrial site.

The site discharged its process water after only minimal treatment, with a rising cost linked to discharge fees and clean-water supply. SAFWAT implemented a treatment chain enabling a large share of this effluent to be reused in the process.

Beyond the environmental benefit, the site reduced its clean-water consumption and its discharge treatment costs.

The chain combines upstream physico-chemical treatment to remove suspended solids and part of the organic load, followed by filtration matched to the quality required for reuse. The 300 m³/day flow rate was chosen to cover most of the site's process-water needs without oversizing the installation.

Regular analytical monitoring of the recycled water confirms its compatibility with internal uses, and a clear protocol defines the checkpoints before reinjection into the process, to avoid any risk of cross-contamination.

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