High Energy Electron Beam Irradiation: An Advanced Oxidation Process for the Treatment of Aqueous Based Organic Hazardous Wastes

1992 ◽  
Vol 27 (1) ◽  
pp. 69-96 ◽  
Author(s):  
William J. Cooper ◽  
Michael G. Nickelsen ◽  
David E. Meacham ◽  
Thomas D. Waite ◽  
Charles N. Kurucz
Keyword(s):  
Electron Beam ◽  
Organic Contaminants ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation Process ◽  
Advanced Oxidation ◽  
High Energy ◽  
Transient Species ◽  
Hydrogen Atoms ◽  
Simultaneous Formation ◽  
Oxidation Processes

Abstract Advanced oxidation processes for the removal and destruction of hazardous organic chemicals in water and wastewater is a research area of increasing interest. Advanced oxidation processes generally consider the hydroxyl radical, OH-, the major reactive transient species. A novel process under development, utilizing high energy electrons, extends this concept to include the simultaneous formation of approximately equal concentrations of oxidizing and reducing species. Irradiation of aqueous solutions results in the formation of the aqueous electron, e−aq, hydrogen atoms, H-, and OH-. These reactive transient species initiate chemical reactions capable of destroying organic compounds in aqueous solution. This paper presents data on the removal of six common organic contaminants that have been studied at the Electron Beam Research Facility. The removal and the factors affecting removal were determined. This study focuses on halogenated ethenes, benzene and substituted benzenes. Removal is described in waters of different quality, including potable water, and raw and secondary wastewater. Removal efficiencies ranged from 85 to >99% and varied with water quality, solute concentration, dose and compound.

Decolorization of Simulated Dye Wastewater by High Energy Electron Beam Irradiation with Fe(II) Addition

1998 ◽  
Vol 3 (1) ◽  
Author(s):  
Charles N. Kurucz ◽  
Huren An ◽  
Jason Greene ◽  
Thomas D. Waite ◽  
William J. Cooper
Keyword(s):  
Electron Beam ◽  
Advanced Oxidation Processes ◽  
Electron Beam Irradiation ◽  
Advanced Oxidation ◽  
High Energy ◽  
Biological Processes ◽  
Dye Wastewater ◽  
High Energy Electron ◽  
Beam Irradiation ◽  
Oxidation Processes

AbstractDye wastewaters generally contain highly colored refractory organic chemicals. Traditional biological processes have proven inefficient in the removal of commercial dyes; however, advanced oxidation processes (AOPs), such as Fenton’s Reagent TiO

scholarly journals Treatment of Textile Wastewater Using Advanced Oxidation Processes—A Critical Review

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3515
Author(s):  
Yiqing Zhang ◽  
Kashif Shaad ◽  
Derek Vollmer ◽  
Chi Ma
Keyword(s):  
Wastewater Treatment ◽  
Advanced Oxidation Processes ◽  
Treatment Plant ◽  
Advanced Oxidation ◽  
Textile Wastewater ◽  
Electrical Energy ◽  
High Energy ◽  
Textile Effluent ◽  
Textile Mill ◽  
Oxidation Processes

Textile manufacturing is a multi-stage operation process that produces significant amounts of highly toxic wastewater. Given the size of the global textile market and its environmental impact, the development of effective, economical, and easy-to handle alternative treatment technologies for textile wastewater is of significant interest. Based on the analysis of peer-reviewed publications over the last two decades, this paper provides a comprehensive review of advanced oxidation processes (AOPs) on textile wastewater treatment, including their performances, mechanisms, advantages, disadvantages, influencing factors, and electrical energy per order (EEO) requirements. Fenton-based AOPs show the lowest median EEO value of 0.98 kWh m−3 order−1, followed by photochemical (3.20 kWh m−3 order−1), ozonation (3.34 kWh m−3 order−1), electrochemical (29.5 kWh m−3 order−1), photocatalysis (91 kWh m−3 order−1), and ultrasound (971.45 kWh m−3 order−1). The Fenton process can treat textile effluent at the lowest possible cost due to the minimal energy input and low reagent cost, while Ultrasound-based AOPs show the lowest electrical efficiency due to the high energy consumption. Further, to explore the applicability of these methods, available results from a full-scale implementation of the enhanced Fenton technology at a textile mill wastewater treatment plant (WWTP) are discussed. The WWTP operates at an estimated cost of CNY ¥1.62 m−3 (USD $0.23 m−3) with effluent meeting the China Grade I-A pollutant discharge standard for municipal WWTPs, indicating that the enhanced Fenton technology is efficient and cost-effective in industrial treatment for textile effluent.

Figures-of-Merit for the Technical Development and Application of Advanced Oxidation Processes

1996 ◽  
Vol 1 (1) ◽  
Author(s):  
James R. Bolton ◽  
Keith G. Bircher ◽  
William Tumas ◽  
Chadwick A. Tolman
Keyword(s):  
Organic Contaminants ◽  
Advanced Oxidation Processes ◽  
Waste Treatment ◽  
Advanced Oxidation ◽  
Electrical Energy ◽  
Polluted Water ◽  
Oxidation Processes ◽  
Figures Of Merit ◽  
Wide Range ◽  
Order Of Magnitude

AbstractAdvanced oxidation processes (AOPs), which involve the in-situ generation of highly potent chemical oxidants such as the hydroxyl radical (•OH), have recently emerged as an important class of technologies for accelerating the oxidation and hence destruction of a wide range of organic contaminants in polluted water and air. We propose generally applicable standard figures-of-merit for comparing these waste treatment technologies. These figures-of-merit are based on electrical energy consumption within two phenomenological kinetic order regimes: one for high contaminant concentrations (electrical energy per mass, EE/M) and one for low concentrations (electrical energy per order of magnitude per m

scholarly journals Perovskites as Catalysts in Advanced Oxidation Processes for Wastewater Treatment

Catalysts ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 230 ◽  
Author(s):  
María Rojas-Cervantes ◽  
Eva Castillejos
Keyword(s):  
Organic Contaminants ◽  
Photocatalytic Oxidation ◽  
Advanced Oxidation Processes ◽  
High Mobility ◽  
Advanced Oxidation ◽  
Oxidation States ◽  
Effluent Water ◽  
Oxidation Processes ◽  
Reactive Radicals ◽  
Perovskite Type

Advanced oxidation processes (AOPs), based on the formation of highly reactive radicals are able to degrade many organic contaminants present in effluent water. In the heterogeneous AOPS the presence of a solid which acts as catalyst in combination with other systems (O3, H2O2, light) is required. Among the different materials that can catalyse these processes, perovskites are found to be very promising, because they are highly stable and exhibit a high mobility of network oxygen with the possibility of forming vacancies and to stabilize unusual oxidation states of metals. In this review, we show the fundaments of different kinds of AOPs and the application of perovskite type oxides in them, classified attending to the oxidant used, ozone, H2O2 or peroxymonosulfate, alone or in combination with other systems. The photocatalytic oxidation, consisting in the activation of the perovskite by irradiation with ultraviolet or visible light is also revised.

scholarly journals Kinetic Study on Degradation of Micro-organics by Different UV-based advanced oxidation processes in EfOM Matrix

2021 ◽  
Author(s):  
Donghai Yuan ◽  
Guangyu Liu ◽  
Fei Qi ◽  
Jinggang Wang ◽  
Yingying Kou ◽  
...  
Keyword(s):  
Organic Matter ◽  
Organic Contaminants ◽  
Advanced Oxidation Processes ◽  
Degradation Kinetics ◽  
Advanced Oxidation ◽  
Negative Effects ◽  
Effluent Organic Matter ◽  
Chlorobenzoic Acid ◽  
Oxidation Processes ◽  
Competitive Kinetics

Abstract Effluent Organic Matter (EfOM) contains a large number of substances that are harmful to both the environment and human health. To avoid the negative effects of organic matter in EfOM, advanced treatment of organic matter is an urgent task. Four typical oxidants (H2O2, PS, PMS, NaClO) and UV-combined treatments were used to treat micro-contaminants in the presence or absence of effluent organic matter (EfOM), because the active radical species produced in these UV-AOPs are highly reactive with organic contaminants. However, the removal efficiency of trace contaminants was greatly affected by the presence of EfOM. The degradation kinetics of two representative micro-contaminants (benzoic acid (BA) and para-chlorobenzoic acid(p-CBA)) was significantly reduced in the presence of EfOM, compared to the degradation kinetics in its absence. Using the method of competitive kinetics, with BA, p-CBA and 1,4-dimethoxybenzene (DMOB) as probes, the radicals (HO·, SO4-·, ClO·) proved to be the key to reaction species in advanced oxidation processes. UV irradiation on EfOM was not primarily responsible for the degradation of micro-contaminants. The second-order rate constants of the EfOM with radicals were determined to be (5.027±0.643)×102(SO4-·), (3.192±0.153)×104 (HO·) and 1.35×106 (ClO·) (mg-C/L)-1·s-1. In addition, this study evaluated the production of three radicals based on the concept of Rct, which can better analyze its reaction mechanism.

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