## An **Integrated** Response to **Mining Sector Challenges**

Gold ore processing generates significant volumes of wastewater. Veolia has implemented six facilities to manage effluents from underground galleries, rainfall, and tailings ponds. Two units produce drinking water, while the other four ensure treatment that meets national standards.

## Preserving **Resources** and Adding Value **to Discharges**

By optimizing salt separation and conducting tests to valorize saline by-products, Veolia supports a local circular economy loop while enabling the mine to retain its operating license.


   ![Visual showing the city of Obuasi on the map of Ghana](/sites/g/files/dvc4206/files/image/2025/07/map-obuasi-ghana-604x302.png)   


**3.4 million**  
m³ of water treated and discharged annually


**1.9 million**  
m³ of drinking water produced annually


**6**  
treatment stations deployed


0  
environmental impact reported


   ![Piping pictogram](/sites/g/files/dvc4206/files/styles/default/public/image/2025/07/picto-tuyauterie-604.png.webp?itok=ZAkC6O1u)   


## Key figures


   ![Background (Codant Veolia)](/sites/g/files/dvc4206/files/styles/crop_freeform/public/image/2025/03/background.png.webp?itok=uD4W93Mt)   


<a class="ck-anchor" id="telechargement">-</a>

### Discover how Veolia transforms the challenges of mining **water management** into sustainable opportunities, by **producing drinking water**, **recovering by-products**, and **preserving local resources** for **communities** and the **environment**

[Download the full case study](/en/ecological-transformation-case-studies-full-brochure)

 
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#### Download the full brochure


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**By downloading the brochure, you will have access to the full case studies, including:**

• **Specific technologies** implemented  
• Exclusive **key figures**...

Don't miss this opportunity to learn more about the concrete solutions offered by Veolia to support the ecological transformation of your industry!

[Download the full brochure](/en/ecological-transformation-case-studies-full-brochure)

 
   ![Cover brochure - Achieving the successful ecological transformation of your industry together](/sites/g/files/dvc4206/files/styles/default/public/image/2025/07/Cover%20brochure%20-%20Achieving%20the%20successful%20ecological%20transformation%20of%20your%20industry%20together.png.webp?itok=VprTnXPE)   


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