Filter materials for the oil-contaminated wastewater treatment

A filter material composed of polyester fiber with immobilised Pseudomonas bacterial cells has been developed. The material is suitable as a filling medium for filtration systems of oil refineries and other facilities generating petroleum- contaminated wastewater. Microorganism immobilisation has been achieved through the application of a composition comprising oppositely charged polymers. The study examines the design of a biofilter optimised for efficient accumulation and subsequent biodegradation of petroleum pollutants.