Improving fouling resistance of seawater desalination membranes via surface modification | Zendy

Jongmin Lee | Zendy; Hyunwoong Lee | Zendy; Yeo Jin Kim | Zendy; Hyung Gyu Park | Zendy; Sung-Pyo Hong | Zendy; JaYoung Koo | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Improving fouling resistance of seawater desalination membranes via surface modification

Author(s) -

Jongmin Lee,

Hyunwoong Lee,

Yeo Jin Kim,

Hyung Gyu Park,

Sung-Pyo Hong,

JaYoung Koo

Publication year - 2013

Publication title -

journal of water reuse and desalination

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.548

H-Index - 16

eISSN - 2408-9370

pISSN - 2220-1319

DOI - 10.2166/wrd.2013.000

Subject(s) - fouling , membrane , contact angle , humic acid , membrane fouling , chemical engineering , surface roughness , electrokinetic phenomena , reverse osmosis , desalination , chemistry , electro osmosis , seawater , surface energy , chromatography , materials science , electrophoresis , composite material , organic chemistry , fertilizer , biochemistry , oceanography , engineering , geology

A commercial polyamide seawater reverse osmosis membrane (Woongjin Chemical CSM) was surface-modified with fluoro-compounds. The effect of this surface modification on both water and NaCl permeability before and after organic fouling was investigated. The structural and electrical characteristics of the membrane surface were measured using atomic force microscopy and electrokinetic analysis respectively. When modified, the membrane surface showed only slight changes to the surface roughness and surface charges. The modified membrane also showed highly improved fouling resistance during cross-flow filtration of characteristic seawater organic foulants (humic acid and sodium alginate). Contact angle analysis using the Owens-Wendt theory was used to calculate the surface energy of the modified membrane. Lower surface energy of the modified membrane was identified as the key factor in the improved fouling resistance of the membranes.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research