Using circulation tests to model natural organic matter adsorption and particle deposition by spiral-wound nanofiltration membrane elements

Desalination ◽  
2000 ◽  
Vol 131 (1-3) ◽  
pp. 105-115 ◽  
Author(s):  
Tory L. Champlin
Keyword(s):  
Organic Matter ◽  
Natural Organic Matter ◽  
Particle Deposition ◽  
Nanofiltration Membrane ◽  
Spiral Wound

Fouling studies of a polyamide nanofiltration membrane by selected natural organic matter: an analytical approach

Desalination ◽  
2005 ◽  
Vol 173 (3) ◽  
pp. 223-238 ◽  
Author(s):  
D. Violleau ◽  
H. Essis-Tome ◽  
H. Habarou ◽  
J.P. Croué ◽  
M. Pontié
Keyword(s):  
Organic Matter ◽  
Natural Organic Matter ◽  
Analytical Approach ◽  
Nanofiltration Membrane

Characterization of dissolved organic matter (DOM) extracted from soils by hot water percolation (HWP)

2010 ◽  
Vol 59 (1) ◽  
pp. 99-108 ◽  
Author(s):  
M. Takács ◽  
Gy. Füleky
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Natural Organic Matter ◽  
Extraction Methods ◽  
Soil Samples ◽  
Hot Water ◽  
Soil Extracts ◽  
Water Percolation ◽  
Soil Humic Acid

The Hot Water Percolation (HWP) technique for preparing soil extracts has several advantages: it is easily carried out, fast, and several parameters can be measured from the same solution. The object of this study was to examine the possible use of HWP extracts for the characterization of soil organic matter. The HPLC-SEC chromatograms, UV-VIS and fluorescence properties of the HWP extracts were studied and the results were compared with those of the International Humic Substances Society (IHSS) Soil Humic Acid (HA), IHSS Soil Fulvic Acid (FA) and IHSS Suwannee Natural Organic Matter (NOM) standards as well as their HA counterparts isolated by traditional extraction methods from the original soil samples. The DOM of the HWP solution is probably a mixture of organic materials, which have some characteristics similar to the Soil FA fractions and NOM. The HWP extracted organic material can be studied and characterized using simple techniques, like UV-VIS and fluorescence spectroscopy.

Characterization and isolation of natural organic matter from a eutrophic reservoir

2000 ◽  
Vol 49 (5) ◽  
pp. 269-280 ◽  
Author(s):  
Cheng-Nan Chang ◽  
Ying-Shih Ma ◽  
Guor-Cheng Fang ◽  
Fang-Fong Zing
Keyword(s):  
Organic Matter ◽  
Natural Organic Matter ◽  
Eutrophic Reservoir
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