Impact of salinity on the population dynamics of microorganisms in a membrane bioreactor treating produced water

The Science of the Total Environment
Borte Kose MutluIsmail Koyuncu

Abstract

Biomass characteristics may change subject to a salinity increase when treating high strength wastewater. In this study, the impact of salinity in a membrane bioreactor (MBR) was investigated for the treatment of produced water (PW). MBR was operated as a pre-treatment prior to nanofiltration (NF) and reverse osmosis (RO). Mixed PW, that was originated from different oil, gas, and oil-gas wells, were subjected to pre-treatment for 146 days including three different operational phases: Low-salinity (~10 mS/cm), gradual increased salinity (10-40 mS/cm) and high salinity (~40 mS/cm). The results of this study showed that microorganisms could adapt using real wastewater and treat PW up to a certain level of the salinity. At high salinity levels of PW, the floc structure started to be disrupted and membrane fouling was accelerated. PCR-DGGE analysis confirmed the changes in microbial communities' composition in relation with high salinity. The results of the final treatment experiments presented that NF and RO treatment produced high-quality effluents that could be suitable for reuse.

References

Feb 1, 1996·Applied and Environmental Microbiology·M T Suzuki, S J Giovannoni
Nov 15, 1997·Applied and Environmental Microbiology·T HurekB Reinhold-Hurek
Oct 6, 1998·Applied and Environmental Microbiology·M F Polz, C M Cavanaugh
Jan 5, 2002·Environmental Technology·D D FreireG L Santanna
Mar 10, 2004·Applied and Environmental Microbiology·Yoshifumi ShinodaNobuo Kato
Dec 3, 2004·Applied and Environmental Microbiology·Shinya KurataYoichi Kamagata
Dec 7, 2005·FEMS Microbiology Ecology·Birte GerdesElisabeth Helmke
Oct 4, 2006·Environmental Microbiology·Kim HeylenPaul De Vos
Jun 10, 2009·Journal of Hazardous Materials·Ahmadun Fakhru'l-RaziZurina Zainal Abidin
Jul 25, 2009·International Journal of Systematic and Evolutionary Microbiology·Nadine BrulandAlexander Steinbüchel
Dec 5, 2009·FEMS Microbiology Ecology·Amelia-Elena RotaruJens Harder
May 25, 2010·Environmental Science and Pollution Research International·Necati KayaalpCumali Kinaci
Feb 24, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·R CampoG Di Bella
Nov 21, 2017·The Science of the Total Environment·Karl OetjenChristopher P Higgins
Dec 19, 2017·Environmental Science and Pollution Research International·Mustafa Evren ErsahinIsmail Koyuncu

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Citations

Aug 8, 2020·Water Environment Research : a Research Publication of the Water Environment Federation·Xinchao WeiFrederick A Wolfe
Oct 6, 2020·Frontiers in Microbiology·Shwetha M AcharyaSusannah G Tringe

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