The project began with a review of previous experimental results regarding microplastic contamination in marine and freshwater environments. Students analyzed data collected from the Black Sea and nearby coastal lakes, confirming the presence of various microplastic types.

In the experimental phase, students prepared ferrofluids by combining iron filings with oil, creating a magnetic medium capable of interacting with microplastic particles. Laboratory simulations were conducted using microplastics such as polypropylene and polystyrene particles.

An electromagnet was then used to attract and separate the ferrofluid-bound microplastics from water samples. The efficiency of the method was observed and recorded, focusing on the degree of particle removal and ease of separation.

In the second phase, students worked on designing a conceptual wastewater treatment plant. They included standard treatment stages (mechanical screening, sedimentation, biological treatment) and added an innovative microplastic removal unit based on their ferrofluid method. The final activities included data analysis, evaluation of method efficiency, and preparation of reports and schematic diagrams of the proposed treatment system.