UV/chlorinated cyanurates as an emerging advanced oxidation process for drinking water and potable reuse treatments

2022 ◽  
pp. 118075
Author(s):  
Yi-Hsueh Chuang ◽  
Hong-Jia Shi
Keyword(s):  
Drinking Water ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Potable Reuse

Emerging investigators series: the efficacy of chlorine photolysis as an advanced oxidation process for drinking water treatment

2016 ◽  
Vol 2 (4) ◽  
pp. 565-579 ◽  
Author(s):  
C. K. Remucal ◽  
D. Manley
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Hydroxyl Radicals ◽  
Hypochlorous Acid ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Drinking Water Treatment ◽  
Advanced Oxidation ◽  
Chlorine Radicals ◽  
Reactive Oxidants

The photolysis of hypochlorous acid (HOCl) and hypochlorite (OCl−) produces a suite of reactive oxidants, including hydroxyl radicals (˙OH), chlorine radicals (Cl˙), and ozone (O3).

Electrochemical advanced oxidation process using DiaChem®electrodes

2004 ◽  
Vol 49 (4) ◽  
pp. 207-212 ◽  
Author(s):  
I. Tröster ◽  
L. Schäfer ◽  
M. Fryda ◽  
T. Matthée
Keyword(s):  
Drinking Water ◽  
Hydroxyl Radicals ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Chemical Vapour ◽  
Advanced Oxidation ◽  
Water Disinfection ◽  
Efficient Production ◽  
Boron Doped Diamond ◽  
Electrochemical Window

The electrochemical advanced oxidation process (EAOP) using boron doped diamond (DiaChem®, registered trademark of Condias GmbH) has been studied for wastewater treatment and drinking water disinfection. DiaChem® electrodes consist of preferentially metallic base materials coated with a conductive polycrystalline diamond film by hot-filament chemical vapour deposition. They exhibit high overpotential for water electrolysis as well as high chemical inertness and extended lifetime. In particular the high overpotential for water decomposition opens the widest known electrochemical window, allowing the energy efficient production of hydroxyl radicals directly from aqueous solutions. The hydroxyl radicals on the other hand are effectively used for the oxidation of pollutants. The EAOP using DiaChem® electrodes thus facilitates the direct and, if necessary, complete decomposition of even hazardous or persistent pollutants in different wastewaters. Current efficiencies of more than 90%, also without the use of additives for hydroxyl radical generation, have been demonstrated. Additionally, for drinking water preparation diamond electrodes facilitate disinfection with and without the support of chlorine.

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