scholarly journals Plutonium Redox Transformation in the Presence of Iron, Organic Matter, and Hydroxyl Radicals: Kinetics and Mechanistic Insights

2021 ◽  
Vol 55 (3) ◽  
pp. 1800-1810
Author(s):  
Chao Pan ◽  
Yongqin Jiao ◽  
Annie B. Kersting ◽  
Mavrik Zavarin
Keyword(s):  
Organic Matter ◽  
Hydroxyl Radicals ◽  
Redox Transformation

Identifying the factors that influence the reactivity of effluent organic matter with hydroxyl radicals

2014 ◽  
Vol 50 ◽  
pp. 408-419 ◽  
Author(s):  
Olya S. Keen ◽  
Garrett McKay ◽  
Stephen P. Mezyk ◽  
Karl G. Linden ◽  
Fernando L. Rosario-Ortiz
Keyword(s):  
Organic Matter ◽  
Hydroxyl Radicals ◽  
Effluent Organic Matter

Characteristics of intracellular algogenic organic matter and its reactivity with hydroxyl radicals

2018 ◽  
Vol 144 ◽  
pp. 13-25 ◽  
Author(s):  
Doorae Lee ◽  
Minhwan Kwon ◽  
Yongtae Ahn ◽  
Youmi Jung ◽  
Seong-Nam Nam ◽  
...  
Keyword(s):  
Organic Matter ◽  
Hydroxyl Radicals

scholarly journals Application of advanced oxidation for the removal of micropollutants in secondary effluents

2012 ◽  
Vol 2 (2) ◽  
pp. 121-126 ◽  
Author(s):  
Renato F. Dantas ◽  
Veronica Dominguez ◽  
Angel Cruz ◽  
Carmen Sans ◽  
Santiago Esplugas
Keyword(s):  
Organic Matter ◽  
Hydroxyl Radicals ◽  
Removal Rate ◽  
Oxygen Demand ◽  
Advanced Oxidation ◽  
Deionized Water ◽  
Oh Radicals ◽  
System Efficiency ◽  
Secondary Effluents ◽  
H2o2 System

The aim of this work was to study the use of advanced oxidation technologies for micropollutant (atrazine, ATZ) removal in secondary effluents (SE). Experiments were carried out, for comparison purposes, in deionized water and in municipal SE. ATZ concentration, chemical oxygen demand (COD) and total organic carbon (TOC) were recorded along the reaction time and used to evaluate the system efficiency. Results demonstrate that the presence of effluent organic matter (EfOM) can reduce the effectiveness of the methods to remove ATZ due to the competition of EfOM components to react with OH radicals and/or molecular ozone. ATZ was more easily removed by hydroxyl radicals, however the presence of EfOM promoted higher inhibition of its removal by hydroxyl radicals than by ozone. The addition of Fe as catalyst in the UV/H2O2 system also increased the ATZ removal rate in SE. In addition, direct ATZ photolysis promoted by UV alone must be considered in the assessment of its degradation by UV-based methods.

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