BIOREMEDIATION OF PETROLEUM POLLUTANTS WITH ALKANE-UTILIZING BACTERIA

• Main Author: PERRIELLO, FELIX, ANTHONY
• Format: Patent
• Language: English; French
• Published: 28.09.2000
• Edition: 7
• 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; DISPOSAL OF SOLID WASTE; ENZYMOLOGY; FIRE-FIGHTING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HUMAN NECESSITIES; LIFE-SAVING; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROCESSES USING MICROORGANISMS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; SEPARATION; SPIRITS; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; VINEGAR; WINE

Alkane-utilizing bacteria are used to degrade pollutants comprising petroleum compounds. In-situ or ex-situ techniques may be used to reduce or eliminate petroleum pollutants from liquid, gas and solid sources. In a preferred embodiment, petroleum concentrations in various environments are reduced by contacting the petroleum pollutants with butane-utilizing bacteria in the presence of oxygen to degrade the petroleum pollutants by cometabolism or direct metabolism. Suitable alkane-utilizing bacteria include Pseudomonas, Variovorax, Nocardia, Chryseobacterium, Comamonas, Acidovorax, Rhodococcus, Aureobacterium, Micrococcus, Aeromonas, Stenotrophomonas, Sphingobacterium, Shewanella, Phyllobacterium, Clavibacter, Alcaligenes, Gordona, Corynebacterium and Cytophaga. On emploie des bactéries utilisant les alcanes pour décomposer les polluants comprenant des composés du pétrole. On peut utiliser des techniques in situ ou ex situ pour réduire ou éliminer les polluants pétroliers dans des sources liquides, gazeuses et solides. Dans un mode de réalisation préféré, on réduit les concentrations de pétrole dans différents environnements par la mise en contact des polluants pétroliers avec des bactéries utilisant le butane en présence de l'oxygène pour décomposer les polluants pétroliers par cométabolisme ou par métabolisme direct. Les bactéries appropriées utilisant l'alcane comprennent Pseudomonas, Variovorax, Nocardia, Chryseobacterium, Comamonas, Acidovorax, Rhodococcus, Aureobacterium, Micrococcus, Aeromonas, Stenotrophomonas, Sphingobacterium, Shewanella, Phyllobacterium, Clavibacter, Alcaligenes, Gordona, Corynebacterium et Cytophaga.