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Country | Biological systems used |
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USA | Pure or mixed cultures of Bacillus, Clostridium, Pseudomonas, and Gram-negative rods; mixed cultures of hydrocarbon degrading bacteria; mixed cultures of marine source bacteria; spore suspension of Clostridium; indigenous stratal microflora; slime-forming bacteria; ultramicrobacteria |
Russia | Pure cultures of C. tyrobutiricum; bacteria mixed cultures; indigenous microflora of water injection and water formation; activated sludge bacteria; naturally occurring microbiota of industrial (food) wastes |
China | Mixed enriched bacterial cultures of Bacillus, Bacteroides, Eubacterium, Fusobacterium, Pseudomonas; slime-forming bacteria: Brevibacterium viscogenes, Corynebacterium gumiform, Xanthomonas campestris |
Australia | Ultramicrobacteria with surface active properties |
Bulgaria | Indigenous oil-oxidizing bacteria from water injection and water formation |
Canada | Pure culture of Leuconostoc mesenteroides |
Former Czechoslovakia | Hydrocarbon oxidizing bacteria (predominant Pseudomonas sp.); sulfate-reducing bacteria |
England | Naturally occurring anaerobic strain, high generator of acids; special starved bacteria, good producers of exopolymers |
Former East Germany | Mixed cultures of thermophilic Bacillus and Clostridium from indigenous brine microflora |
Hungary | Mixed sewage-sludge bacteria cultures (predominant: Clostridium, Desulfovibrio, Pseudomonas) |
Norway | Nitrate-reducing bacteria naturally occurring in North Sea water |
Oman | Autochthonous spore-forming bacteria from oil wells and oil contaminated soil |
Poland | Mixed bacteria cultures (Arthrobacter, Clostridium, Mycobacterium, Peptococcus, Pseudomonas) |
Romania | Adapted mixed enrichment cultures (predominant: Bacillus, Clostridium,
Pseudomonas, and other Gram-negative rods) |
Saudi Arabia | Adequate bacterial inoculum according to requirements of each technology |
The Netherlands | Slime-forming bacteria (Betacoccus dextranicus) |
Trinidad-Tobago | Facultative anaerobic bacteria high producers of gases |
Venezuela | Adapted mixed enrichment cultures |
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