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Bacteria from Ochrobactrum genus are found in various environments. They were isolated from soil, sewage, plant tissue and human body, where they acted as a human opportunistic pathogens. Ochrobactrum are able to degrade a wide variety of chemical substances, such as atrazine, nicotine, phenol or polycyclic aromatic hydrocarbons (PAH) and accumulate heavy metals. Many of those substances pose a threat...
Carbon and nitrogen removal in dependence on the retention time and pollution loading was investigated using biomass immobilized inside macroporous ceramic carrier. Efficiency of carbon removal was 78%, nitrification rate ? 91,7%, denitrification rate ? 64,9%, when the technological parameter were: volumetric loading 5,9 g/dm3 d, hydraulic retention time 34 min, intrinsic recirculation 50 dm3/h.
The process of biodegradation of petrochemical sludge was carried out on anaerobic expanded bed inoculated with selected strains of Desulfovibrio bacteria. Pollution in digested sludge was significantly reduced under conditions of sulphate respiration and four-day long bed operation period. The reduction of chemical oxygen demand (COD) was higher that 95%. 58% of the total amount of hydrocarbons...
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