Author/Authors :
N. Zare Department of Chemical Engineering - Amirkabir University of Technology, Tehran, Iran , S. Darabi Department of Chemical Engineering - Amirkabir University of Technology, Tehran, Iran , B. Bonakdarpour Department of Chemical Engineering - Amirkabir University of Technology, Tehran, Iran , M. A. Amouzegar Department of Microbiology - University of Tehran, Tehran, Iran , M. Shavandi Research Institute of Petroleum Industry (RIPI), Tehran, Iran , N. Fallah Department of Chemical Engineering - Amirkabir University of Technology, Tehran, Iran
كليدواژه :
Produced water , Halophilic prokaryotic consortium , Biological treatment , COD removal
چكيده لاتين :
In the present study, possibility of the enrichment of indigenous halophilic and halotolerant prokaryotic consortia from samples obtained from various locations of several Iranian oilfield produced water (PW) desalination units and ability of the individual consortia for COD removal from the high salinity PW (<150 g/L) were investigated. Enrichment was carried out via four subcultures of the various microbial sources using different media. OD and protein data showed that microbial sources cultured in MH medium had higher growth than those cultured in PW. However, reasonable growth was obtained when the enrichment was carried out in PW amended with YE/multivitamin solution. Soil based microbial sources enriched in PW media amended with both YE and multivitamin solution resulted in meaningfully higher extent of growth compared to the corresponding enrichment carried out in PW media amended with YE. However, there was no meaningful difference between the extent of growth observed in the enriched media using the different microbial sources. Linear correlation analysis revealed no statistically significant correlation between the OD and COD removal effieiceny of the enriched samples. The findings of the present study showed the potential of the development of halophilic prokaryotic cosortium for biological treatment of Iranian oilfield PW through suitable enrichment of the indigenuous microbial populations present in PW or PW contaminated soil.
