Treatment of Produced Waters Using a Surfactant Modified Zeolite/Vapor Phase Bioreactor System

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Co-produced water from the oil and gas industry accounts for a significant waste stream in the United States. It is by some estimates the largest single waste stream in the country, aside from nonhazardous industrial wastes. Characteristics of produced water include high total dissolved solids content, dissolved organic constituents such as benzene and toluene, an oil and grease component, and chemicals added during the oil-production process. While most of the produced water is disposed via reinjection, some of them must be treated to remove organic constituents before the water is discharged. Current treatment options are successful in reducing the organic ... continued below

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16 pages

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Katz, Lynn E.; Kinney, Kerry A.; Bowman, R.S. & Sullivan, E.J. April 1, 2003.

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Description

Co-produced water from the oil and gas industry accounts for a significant waste stream in the United States. It is by some estimates the largest single waste stream in the country, aside from nonhazardous industrial wastes. Characteristics of produced water include high total dissolved solids content, dissolved organic constituents such as benzene and toluene, an oil and grease component, and chemicals added during the oil-production process. While most of the produced water is disposed via reinjection, some of them must be treated to remove organic constituents before the water is discharged. Current treatment options are successful in reducing the organic content; however, they cannot always meet the levels of current or proposed regulations for discharged water. Therefore, an efficient, cost-effective treatment technology is needed. Surfactant-modified zeolite (SMZ) has been used successfully to treat contaminated ground water for organic and inorganic constituents. In addition, the low cost of natural zeolites makes their use attractive in water-treatment applications. Our previous DOE research work (DE-AC26-99BC15221) demonstrated that SMZ could successfully remove BTEX compounds from the produced water. In addition, SMZ could be regenerated through a simple air sparging process. The primary goal of this project is to develop a robust SMZ/VPB treatment system to efficiently remove the organic constituents from produced water in a cost-effective manner. This report summarizes work of this project from October 2002 to March 2003. In this starting stage of this study, we have continued our investigation of SMZ regeneration from our previous DOE project. Two saturation/stripping cycles have been completed for SMZ columns saturated with BTEX compounds. Preliminary results suggest that BTEX sorption actually increases with the number of saturation/regeneration cycles. Furthermore, the experimental vapor phase bioreactors for this project have been designed and are currently being assembled to treat the off-gas from the SMZ regeneration process.

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16 pages

Notes

OSTI as DE00822235

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  • Other Information: PBD: 1 Apr 2003

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  • Report No.: NONE
  • Grant Number: FC26-02NT15461
  • DOI: 10.2172/822235 | External Link
  • Office of Scientific & Technical Information Report Number: 822235
  • Archival Resource Key: ark:/67531/metadc781434

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  • April 1, 2003

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • Oct. 4, 2017, 5:18 p.m.

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Katz, Lynn E.; Kinney, Kerry A.; Bowman, R.S. & Sullivan, E.J. Treatment of Produced Waters Using a Surfactant Modified Zeolite/Vapor Phase Bioreactor System, report, April 1, 2003; Austin, Texas. (digital.library.unt.edu/ark:/67531/metadc781434/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.