BIOCOMPOSITE FOR PURIFICATION OF WASTE WATER FROM NITRITE-, NITRATE-, PHOSPHATE IONS Russian patent published in 2017 - IPC C02F3/10 C02F3/32 

FIELD: ecology; biotechnology.

SUBSTANCE: invention relates to biocomposite material containing non-woven polymer and immobilized association of microorganisms, and it can be used in treatment of domestic and industrial waste water from contamination with nitrites, nitrates, phosphates. Biocomposite is nonwoven polymer based on copolymer of acrylonitrile and methyl methacrylate, produced by aerodynamic forming, filler, which is activated carbon and crushed unsterile Sphagnum plants (Sphagnum) or activated carbon and cell walls of aqueous duckweed plants (Lemnaceae), incorporated into polymer during its aerodynamic forming in amount of 10–50 % of weight of polymer, and immobilized association of microorganisms, reducing concentration of nitrate-, nitrite- and phosphate ions, association incorporates methylotrophic yeast of genus Torula, bacteria of genus Arthrobacter, Bacillus, Pseudomonas.

EFFECT: technical result consists in increased service life of biocomposite material, increased area of immobilization of microorganisms, higher degree of material for immobilisation of association of microorganisms, and selection of set of microorganisms in association of microorganisms, which has symbiotic relationship providing high degree of purification of waste water from said ions.

1 cl, 2 ex