Potassium mining activities result in the discharge of highly saline wastewaters, creating severe environmental impacts in water and soil.

Innovative solution for the recovery of clean water and high-purity minerals from the coal mine sector https://www.sciencedirect.com/science/article/pii/S0011916425005971?via%3Dihub Coal mining activities generate massive volumes of highly saline wastewater that cause significant ecological damage once they end up in the environment. Saline discharges contribute to the salinization of soil, the disruption of the aquatic flora and fauna, and the degradation of surface water quality. To address this issue, a near-zero liquid discharge (near-ZLD) system has been designed and constructed to treat coal mine wastewater before its discharge into the environment. The pilot system included membrane, precipitation, and thermal technologies to desalinate the

The concept of circular water value and its role in the design and implementation of circular desalination projects. The case of coal mines in Poland https://www.sciencedirect.com/science/article/pii/S0011916424002121?via%3Dihub This paper focuses on the ”circular water value” concept in the context of coal mining by comparing the circular value of two different cases. The findings highlight opportunities for enabling a transition in coal mining regions through circular practices.

“Mine Wastewater’s Impact on Aquatic Life in Southern Poland” A recent study reveals how saline wastewater from coal mines is harming biodiversity in local streams. With conductivity levels nearing seawater, sensitive species are disappearing, and ecosystem health is declining fast. Read more: https://www.mdpi.com/2073-4441/16/9/1292