Effects of Natural Organic Matter on PCB-Activated Carbon Sorption Kinetics: Implications for Sediment Capping Applications

2010 ◽  
Vol 39 (4) ◽  
pp. 1359-1368 ◽  
Author(s):  
Julian L. Fairey ◽  
David G. Wahman ◽  
Gregory V. Lowry
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Natural Organic Matter ◽  
Sorption Kinetics ◽  
Sediment Capping

scholarly journals Effects of ozonation and temperature on biodegradation of natural organic matter in biological granular activated carbon filters

2010 ◽  
Vol 3 (1) ◽  
pp. 107-132 ◽  
Author(s):  
L. T. J. van der Aa ◽  
L. C. Rietveld ◽  
J. C. van Dijk
Keyword(s):  
Carbon Dioxide ◽  
Organic Matter ◽  
Activated Carbon ◽  
Organic Carbon ◽  
Natural Organic Matter ◽  
Granular Activated Carbon ◽  
Carbon Dioxide Production ◽  
Oxygen Removal ◽  
Theoretical Maximum ◽  
Increasing Temperature

Abstract. Four pilot (biological) granular activated carbon ((B)GAC) filters were operated to quantify the effects of ozonation and water temperature on the biodegradation of natural organic matter (NOM) in (B)GAC filters. Removal of dissolved organic carbon (DOC), assimilable organic carbon (AOC) and oxygen and the production of carbon dioxide were taken as indicators for NOM biodegradation. Ozonation stimulated DOC and AOC removal in the BGAC filters, but had no significant effect on oxygen removal and carbon dioxide production. The temperature had no significant effect on DOC and AOC removal, while oxygen removal and carbon dioxide production increased with increasing temperature. Multivariate linear regression was used to quantify these relations. In summer the ratio between oxygen consumption and DOC removal exceeded the theoretical maximum of 2.5 g O2·g C−1 and the ratio between carbon dioxide production and DOC removal exceeded the theoretical maximum of 3.7 g CO2·g C−1. Bioregeneration of large NOM molecules could explain this excesses and the non-correlation between DOC and AOC removal and oxygen removal and carbon dioxide production. However bioregeneration of large NOM molecules was considered not likely to happen, due to sequestration.

Comparison of natural organic matter adsorption capacities of super-powdered activated carbon and powdered activated Carbon

2010 ◽  
Vol 44 (14) ◽  
pp. 4127-4136 ◽  
Author(s):  
Naoya Ando ◽  
Yoshihiko Matsui ◽  
Ryuji Kurotobi ◽  
Yu Nakano ◽  
Taku Matsushita ◽  
...  
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Natural Organic Matter ◽  
Powdered Activated Carbon ◽  
Adsorption Capacities

Characterization of natural organic matter adsorption in granular activated carbon adsorbers

2011 ◽  
Vol 45 (13) ◽  
pp. 3951-3959 ◽  
Author(s):  
Silvana Velten ◽  
Detlef R.U. Knappe ◽  
Jacqueline Traber ◽  
Hans-Peter Kaiser ◽  
Urs von Gunten ◽  
...  
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Natural Organic Matter ◽  
Granular Activated Carbon
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