Effect of ozonation on the characteristics of effluent organic matter fractions and subsequent associations with disinfection by-products formation

2018 ◽  
Vol 610-611 ◽  
pp. 1057-1064 ◽  
Author(s):  
Weixiao Qi ◽  
Hua Zhang ◽  
Chengzhi Hu ◽  
Huijuan Liu ◽  
Jiuhui Qu
Keyword(s):  
Organic Matter ◽  
Effluent Organic Matter ◽  
Organic Matter Fractions ◽  
By Products

scholarly journals Contribution of different effluent organic matter fractions to membrane fouling in ultrafiltration of treated domestic wastewater

2012 ◽  
Vol 2 (4) ◽  
pp. 204-209 ◽  
Author(s):  
X. Zheng ◽  
J. P. Croue
Keyword(s):  
Organic Matter ◽  
Membrane Fouling ◽  
Domestic Wastewater ◽  
Molecular Size ◽  
Effluent Organic Matter ◽  
Membrane Pore ◽  
Pore Opening ◽  
Organic Matter Fractions ◽  
Doc Load ◽  
Hydrophobic Acids

In the present work, effluent organic matter (EfOM) in treated domestic wastewater was separated into hydrophobic neutrals, colloids, hydrophobic acids, transphilic acids and neutrals and hydrophilic compounds. Their contribution to dissolved organic carbon (DOC) was identified. Further characterization was conducted with respect to molecular size and hydrophobicity. Each isolated fraction was dosed into salt solution to identify its fouling potential in ultrafiltration (UF) using a hydrophilized polyethersulfone membrane. The results show that each kind of EfOM leads to irreversible fouling. At similar delivered DOC load to the membrane, colloids present the highest fouling effect in terms of both reversible and irreversible fouling. The hydrophobic organics show much lower reversibility than the biopolymers present. However, as they are of much smaller size than the membrane pore opening, they cannot lead to such severe fouling as biopolymers do. In all of the isolated fractions, hydrophilics show the lowest fouling potential. For either colloids or hydrophobic substances, increasing their content in feedwater leads to worse fouling. The co-effect between biopolymers and other EfOM fractions has also been identified as one of the mechanisms contributing to UF fouling in filtering EfOM-containing waters.

Identification of effluent organic matter fractions responsible for low-pressure membrane fouling

2012 ◽  
Vol 46 (17) ◽  
pp. 5531-5540 ◽  
Author(s):  
Emmanuelle Filloux ◽  
Hervé Gallard ◽  
Jean-Philippe Croue
Keyword(s):  
Organic Matter ◽  
Membrane Fouling ◽  
Low Pressure ◽  
Effluent Organic Matter ◽  
Organic Matter Fractions

scholarly journals Optimizing Micropollutant Removal by Ozonation; Interference of Effluent Organic Matter Fractions

2021 ◽  
pp. 1-13
Author(s):  
K. van Gijn ◽  
J. Sohier ◽  
R. Maasdam ◽  
H.A. de Wilt ◽  
H.H.M. Rijnaarts ◽  
...  
Keyword(s):  
Organic Matter ◽  
Effluent Organic Matter ◽  
Micropollutant Removal ◽  
Organic Matter Fractions

Soil Organic Matter Fractions under Managed Pine Plantations of the Southeastern USA

2004 ◽  
Vol 68 (3) ◽  
pp. 950 ◽  
Author(s):  
Marietta E. Echeverría ◽  
Daniel Markewitz ◽  
Lawrence A. Morris ◽  
Ronald L. Hendrick
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Pine Plantations ◽  
Southeastern Usa ◽  
Soil Organic Matter Fractions ◽  
Organic Matter Fractions
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