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Analysis of fouling mechanism in ultrafiltration of produced water

Journal Article · · Journal of Water Process Engineering
 [1];  [2];  [2];  [2]
  1. Texas Tech University, Lubbock, TX (United States); Texas Tech University
  2. Texas Tech University, Lubbock, TX (United States)

Flux decline measurements provided insight into the fouling behavior of ultrafiltration (UF) membranes for produced water (PW) treatment. Three UF membranes were compared in terms of the rate and the intensity of fouling. The flux decline analysis showed the fouling transition from blocking mechanisms (i.e., complete and intermediate blocking as well as standard blocking) to cake formation occurs earlier for more permeable membranes. Lower trans-membrane pressure (TMP) of 0.1 bar led to particle accumulation on the membrane surface leading to cake formation as the predominant fouling mechanism. In higher TMP experiments, standard and intermediate blocking followed by cake formation were found to be apparent fouling mechanisms. Overall, for the membranes with higher permeabilities and for the filtrations with pre-filtered feed, faster transition to cake formation was observed primarily due to crowd out effect. By understanding membrane fouling and behavior, it is possible to mitigate performance losses in membrane-based technologies that could be used for the treatment of PW. Furthermore, this study provides information to identify blocking rate and intensity in various conditions for UF membranes when treating PW.

Research Organization:
RAPID Manufacturing Institute, New York, NY (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0007888
OSTI ID:
2228428
Journal Information:
Journal of Water Process Engineering, Journal Name: Journal of Water Process Engineering Vol. 49; ISSN 2214-7144
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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