SFedU Scientists Develop Eco-Friendly Soil Purification Technology Using Wastewater
15/07/2025
July 15, 2025 — Researchers at Southern Federal University (SFedU) have introduced an innovative technology that allows for the simultaneous detoxification of contaminated soil and the recycling of wastewater. The new approach not only reduces the presence of carcinogens in soil but also improves its fertility.
According to the scientists, approximately 200 billion tons of wastewater are generated globally each year. These contain heavy metals, toxic organic compounds, and harmful pathogens. Conventional disposal methods worsen environmental hazards.
The research team at the Institute of Biology and Biotechnology named after D.I. Ivanovsky developed a method based on low-temperature pyrolysis, which involves heating sewage sludge without oxygen. This process transforms the sludge into a special sorbent capable of absorbing hazardous substances from soil.
Tests revealed that applying the sorbent reduced toxic compound levels by 48% and enhanced the soil's water retention and structure. The method also has the potential to increase crop yields by 10–15% in arid southern regions.
Svetlana Sushkova, head of the "Smart Agroecosystems" laboratory at SFedU, emphasized that the technology is specifically adapted for Russian conditions using local waste materials. She noted the dual environmental benefits: soil remediation and wastewater recycling.
The next phase involves the implementation and promotion of the technology in collaboration with government bodies and industry partners.
This research was supported by Russia’s “Priority 2030” strategic academic leadership program, and the results have been published in the journal Environmental Research.
