High molecular weight components of natural organic matter preferentially adsorb onto nanoscale zero valent iron and magnetite

2018 ◽  
Vol 628-629 ◽  
pp. 177-185 ◽  
Author(s):  
Zhixiong Li ◽  
Gregory V. Lowry ◽  
Jin Fan ◽  
Fei Liu ◽  
Jiawei Chen
Keyword(s):  
Molecular Weight ◽  
Organic Matter ◽  
High Molecular Weight ◽  
Natural Organic Matter ◽  
Zero Valent Iron ◽  
Nanoscale Zero Valent Iron

Countereffect of glutathione on divalent mercury removal by nanoscale zero-valent iron in the presence of natural organic matter

2020 ◽  
Vol 398 ◽  
pp. 122874
Author(s):  
Ghulam Hussain Qasim ◽  
Viet Huu Nguyen ◽  
Sangwook Lee ◽  
Woojin Lee ◽  
Seunghee Han
Keyword(s):  
Organic Matter ◽  
Natural Organic Matter ◽  
Zero Valent Iron ◽  
Mercury Removal ◽  
Nanoscale Zero Valent Iron

Effects of Natural Organic Matter on TCE Removal in Groundwater by Zero-Valent Iron: Batch Study

2013 ◽  
Vol 807-809 ◽  
pp. 486-489
Author(s):  
Tong Zhou Liu ◽  
Pin Hua Rao
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Natural Organic Matter ◽  
Early Stage ◽  
Organic Contaminant ◽  
Zero Valent Iron ◽  
Contaminant Removal ◽  
Inhibitory Effects ◽  
Batch Study

An investigation on the effects of humic acid (representing NOM) on TCE (a typical organic contaminant) removal by Fe0in batch settings was carried out. Inhibitory effects of humic acid on Fe0towards TCE removal were observed. At early stage of the experiments, humic acid might partition with TCE, and the adsorption or deposition of humic acid onto Fe0surface would further facilitated TCE immobilization. Once the reduction reactive sites on Fe0surfaces were covered by accumulated humic acid and the partition of TCE to humic acid became saturated, TCE removal in Fe0was observed retarded.

Advanced oxidation processes: flowsheet options for bulk natural organic matter removal

2004 ◽  
Vol 4 (4) ◽  
pp. 113-119 ◽  
Author(s):  
C.A. Murray ◽  
S.A. Parsons
Keyword(s):  
Molecular Weight ◽  
Organic Matter ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Natural Organic Matter ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Fenton’S Reagent ◽  
Fenton's Reagent ◽  
Oxidation Processes

Advanced oxidation processes have been reported to have the potential to remove natural organic matter from source waters. Of these Fenton's reagent, photo-Fenton's reagent and titanium dioxide photocatalysis are the three most promising processes. Compared to conventional coagulation/flocculation processes they have higher removal efficiencies in terms of both dissolved organic carbon and UV254 absorbance. Under optimum reaction conditions all three remove over 80% dissolved organic carbon and 0% UV254 absorbance. In addition the enhanced removal of natural organic matter leads to a corresponding reduction in the formation of disinfection by-products following chlorination of the treated water. Advanced oxidation processes give enhanced removal of organic species ranging from low to high molecular weight while coagulation/flocculation is inefficient at removing low molecular weight species. One additional benefit is all three processes produce less residuals compared to conventional coagulation, which is advantageous as the disposal of such residuals normally contributes a large proportion of the costs at water treatment works.

Composition of High-Molecular-Weight Heteroatomic Components of Oil Shale Organic Matter

2020 ◽  
Vol 60 (9) ◽  
pp. 991-997
Author(s):  
E. Yu. Kovalenko ◽  
A. V. Petrov ◽  
I. S. Korol’ ◽  
T. A. Sagachenko ◽  
R. S. Min ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Organic Matter ◽  
High Molecular Weight ◽  
Oil Shale

High molecular weight organic matter in martian meteorites

2002 ◽  
Vol 50 (7-8) ◽  
pp. 711-716 ◽  
Author(s):  
M.A. Sephton ◽  
I.P. Wright ◽  
I. Gilmour ◽  
J.W. de Leeuw ◽  
M.M. Grady ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Organic Matter ◽  
High Molecular Weight ◽  
Martian Meteorites

scholarly journals High molecular weight dissolved organic matter enrichment selects for methylotrophs in dilution to extinction cultures

2015 ◽  
Vol 9 (12) ◽  
pp. 2725-2739 ◽  
Author(s):  
Oscar A Sosa ◽  
Scott M Gifford ◽  
Daniel J Repeta ◽  
Edward F DeLong
Keyword(s):  
Molecular Weight ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
High Molecular Weight
Sign in / Sign up

Export Citation Format

Share Document