Use of nanofiltration to reduce cooling tower water consumption.
Conference
·
OSTI ID:1028304
Nanofiltration (NF) can effectively treat cooling-tower water to reduce water consumption and maximize water usage efficiency of thermoelectric power plants. A pilot is being run to verify theoretical calculations. A side stream of water from a 900 gpm cooling tower is being treated by NF with the permeate returning to the cooling tower and the concentrate being discharged. The membrane efficiency is as high as over 50%. Salt rejection ranges from 77-97% with higher rejection for divalent ions. The pilot has demonstrated a reduction of makeup water of almost 20% and a reduction of discharge of over 50%.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1028304
- Report Number(s):
- SAND2010-7190C; TRN: US201122%%173
- Resource Relation:
- Conference: Proposed for presentation at the 2010 AIChE Annual Meeting held November 7-12, 2010 in Salt Lake City, UT.
- Country of Publication:
- United States
- Language:
- English
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