Natural organic matter such as guar and humus are recalcitrant to conventional pretreatment technologies and can potentially foul processes such as membranes during water treatment. An innovative method of using synthetic layered double hydroxides (LDH) was investigated for removing common natural organic matter in the form of guar gum (GG) and humic acid (HA) from water. Adsorption isotherms were evaluated with Langmuir and Freundlich models. Results show the affinity of GG and HA to LDH to be 11.31 and 9.33 mg g−1 LDH, respectively. Kinetic isotherms indicate that the sorbing rates of LDH to GG and HA increase with initial GG and HA concentrations, fitting a pseudo-second order model. This study demonstrate that LDH may be an effective material in removing GG and HA from waters and offer an alternative to conventional pretreatment technologies for the mitigation fouling of membrane and other systems in water treatment.
Skip Nav Destination
Article navigation
Research Article|
April 01 2009
Removal of guar and humus from water by layered double hydroxides
Song Jin;
1MWH Americas, Inc., 3665 JFK Parkway, Suite 206, Fort Collins Colorado 80525, USA
2Department of Civil and Architectural Engineering, University of Wyoming, Laramie, 1000 East University Avenue, Wyoming 82071, USA E-mail: sjin@uwyo.edu; murynowi@uwyo.edu
E-mail: sjin@uwyo.edu
Search for other works by this author on:
Kangping Cui;
Kangping Cui
3School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China E-mail: cuikangping@126.com; qjiazhong@gmail.com
Search for other works by this author on:
Paul H. Fallgren;
Paul H. Fallgren
4Western Research Institute, 365 North 9th Street, Laramie, Wyoming, 82072, USA E-mail: pfallgren@uwyo.edu
Search for other works by this author on:
Michael A. Urynowicz;
Michael A. Urynowicz
2Department of Civil and Architectural Engineering, University of Wyoming, Laramie, 1000 East University Avenue, Wyoming 82071, USA E-mail: sjin@uwyo.edu; murynowi@uwyo.edu
Search for other works by this author on:
Jiazhong Jian
Jiazhong Jian
3School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China E-mail: cuikangping@126.com; qjiazhong@gmail.com
Search for other works by this author on:
Water Sci Technol (2009) 59 (8): 1641–1647.
Citation
Song Jin, Kangping Cui, Paul H. Fallgren, Michael A. Urynowicz, Jiazhong Jian; Removal of guar and humus from water by layered double hydroxides. Water Sci Technol 1 April 2009; 59 (8): 1641–1647. doi: https://doi.org/10.2166/wst.2009.164
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.