PROCEDIMIENTO BIOLOGICO PARA LA DEGRADACION DE MEZCLAS COMPLEJAS DE HIDROCARBUROS EN FASE ACUOSA

• Main Authors: NIQUI ARROYO, JOSÉ LUIS, ROCA HERNANDEZ, AMALIA DE ARRIXACA, SOLANO PARADA, JENNIFER, FERNANDEZ CIFUENTES, SONIA
• Format: Patent
• Language: Spanish
• Published: 30.11.2015
• Subjects: BEER; BIOCHEMISTRY; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS; CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING ORPROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; FIRE-FIGHTING; HUMAN NECESSITIES; LIFE-SAVING; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PROCESSES USING MICROORGANISMS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; VINEGAR; WINE

The invention relates to a biological method for reducing the content of hydrocarbons present in an aqueous medium comprising a mixture of hydrocarbons, containing at least one aliphatic alkane; at least one polycyclic aromatic hydrocarbon (PAH); and at least one aromatic hydrocarbon selected from the group formed by benzene, toluene, ethylbenzene, o-xylene, m-xylene, p-xylene and the combinations thereof, comprising placing said aqueous medium contaminated by said mixture of hydrocarbons in contact with a bacterial mixture comprising at least one bacterium that degrades an aliphatic alkane; at least one bacterium that degrades an HAP; and at least one bacterium that degrades said aromatic hydrocarbon. The method can include a chemical or photochemical treatment prior to the biological treatment of the contaminated aqueous medium. The invention also relates to bacteria that can degrade said hydrocarbons.