Russian Scientists Invent Low-Cost Filter to Purify Toxic Mining Wastewater
Russian scientists have created a low-cost water filter for mining wastewater. The innovative device, developed by researchers at Perm National Research Polytechnic University (PNRPU), uses charcoal and iron shavings to remove heavy metals like manganese and nickel. The filter is designed for use in large industrial plants and could also aid in localized water body cleanup.
The filter operates through a natural oxidation reaction, with charcoal acting as a catalyst. It precipitates heavy metals, reducing their concentrations to safe levels. Tests using real quarry water with high manganese and nickel content showed remarkable results. After filtration, manganese and nickel concentrations dropped to below 0.01 mg/L, meeting environmental safety standards.
The filter is cost-effective and nearly waste-free. It can be reused, and the sediment can be recycled. It improves over time, forming an additional barrier of iron compounds. Notably, the filter requires no chemical reagents or external power, making it a sustainable solution for industrial water treatment.
Industrial customers and experts from companies like Alfiltra GmbH, which specialize in large-scale water treatment systems, will test the application of this filter in larger industrial plants. They will handle installation, commissioning, and usage testing of the filter systems specifically designed for commercial and industrial sectors.
The low-cost water filter developed by PNRPU researchers removes up to 97% of toxic manganese and nickel compounds from contaminated water. Its efficiency, sustainability, and low operational costs make it a promising solution for industrial water treatment and localized water body cleanup. Upcoming tests in larger industrial plants will further validate its practicality and potential impact.
