Integrated Membrane Operations in Difficult Waters, Commercial Case Studies of UF + RO in China
Two commercial case studies are presented utilizing integrated membrane operations (UF +RO) for difficult waters in Northern China. WangTan Power Plant produces up to 7,200 m3/day of water for their power plant process water. This is a seawater desalination project. Almost 2.5 years of operating experience demonstrated long term reliable operation of the UF +RO system. Clean in place (CIP) was only required every 4-12 months. Tai Steel reuses internal waste water to produce 33,000 m3/day of water for both the boiler make-up of the power plant and for the steel production process. The waste water is highly challenging resulting in frequent CIP operations. More than two CIP operations per month were required to maintain stable RO operations. Root cause analysis determined that the SDI of the UF permeate was low enough to not be a source of RO fouling. Autopsy analysis of the first pass RO modules revealed both high inorganic fouling and high biofouling. It was shown that the antiscalant feed tank was the source of biofouling. It was also shown that improper Poly-Aluminum (PAC) coagulant dosing and improper antiscalant dosing were responsible for inorganic contamination. Adjustment of operating conditions resulted in a reduction of the more than 2 CIPs per month to 1 CIP per month.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
Document Type: Research Article
Publication date: 2008-01-01
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 These proceedings are not peer reviewed.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