Skip to main content

Application of Nanofiltration and Reverse Osmosis Membranes for Produced Water Treatment

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Produced water is a term used to describe water that is obtained along with oil and gas production. Produced water constitutes the single largest waste stream from oil and gas exploration and production activities and contains high levels of oil and grease, total dissolved solids (usually sodium chloride), hydrocarbons, and refractory organics. If treated appropriately, produced water can be employed as a true water resource to augment existing surface water streams and creeks. Due to stringent surface discharge limits being imposed in the United States, produced water needs to be managed and treated before being discharged to surface water streams and creeks. Certain discharge limits require a chloride concentration of less than 230 mg/L in the treated water. Treatment of such wastewater streams to meet low chloride, selenium, and boron discharge limits requires a technology, such as nanofiltration (NF) and reverse osmosis (RO), which can serve as an absolute barrier for various contaminants. In this study, different types and configurations of NF and RO processes were pilot tested to determine their applicability in treating produced water obtained from natural gas wells at a location in the western United States. In order to reduce the fouling potential on NF and RO membranes, dissolved air floatation (DAF), ceramic ultrafiltration (UF), MYCELX cartridges, and organoclay filters were tested as pretreatment alternatives. It was determined that the fouling potential of NF and RO membrane was not substantially different for the various pretreatment processes utilized. In order to handle high silica concentrations in the feed water and increase the overall feed water recovery, a two pass NF-RO system was tested. The first pass NF system was used to remove hardness and alkalinity from the feed water. The pH of permeate from the first pass NF system was increased to 10.0 to increase silica solubility and used as feed to a second pass seawater RO system. A combination of spiral wound and disc tube configuration was effective in achieving more than 90 percent recovery for the first pass NF membranes while an overall feed water recovery of more than 70 percent was achieved for the entire NF-RO membrane system and also resulted in meeting the discharge limits.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Keywords: Oily wastewater; organic fouling; recovery optimization; silica polymerization

Document Type: Research Article

Publication date: 2010-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more