Chemists of St. Petersburg State University within the framework of the international OneDrop project have started testing an innovative development — a mobile plant that allows to neutralize and purify industrial wastewater to the state of drinking water. It is no bigger than a microwave oven and can decontaminate up to 150 cubic meters of water per hour in one cycle. This was reported by the press service of the St. Petersburg State University (SPbU).

The installation is being developed by scientists from St. Petersburg State University together with the Lappeenranta University of Technology, Peter the Great St. Petersburg Polytechnic University, with the participation of the innovative company NPK Omega and the management company of the city cargo, passenger, and small-size ports of Lappeenranta-Lappeenranta Free Zone Ltd. The project is funded by a grant-the cross-border cooperation program “CBC Russia-South-Eastern Finland 2014-2020”.

The plant operates on the basis of an electrolyzer that produces liquid ferrates-strong oxidizing agents of polluting organic substances. According to the developers, most of these pollutants are oxidized by ferrates to water and carbon dioxide. The device can purify water and localize contamination in the spill areas.

Now the installation is being tested at the Institute of Chemistry of St. Petersburg State University with the help of specially selected pollutants taken from the Seleznevka River. The project manager from St. Petersburg State University, Professor of the Department of Analytical Chemistry Sergey Ermakov says that the test results are still positive.

The university notes that innovative development has great prospects. With its help, it is possible to solve the global problem of alien species-invaders in the seas-they are transported by ships that, when unloading, collect ballast water for stability along with microorganisms, and then dump them at the port of arrival, disturbing the ecological and natural balance. The installation will allow decontaminating of the ballast water. And another important part of the study is to find out how much ferrates are able to clear traces of drugs. This is an urgent global problem of humanity — the remnants of medicines that a person takes are removed from the body and enter water bodies, can accumulate in fish and plants.

Reference: Yulia Vorobyova for RBK News