scholarly journals Critical Perspective on Advanced Treatment Processes for Water and Wastewater: AOPs, ARPs, and AORPs

2020 ◽  
Vol 10 (13) ◽  
pp. 4549 ◽  
Author(s):  
Andrea G. Capodaglio
Keyword(s):  
Emerging Contaminants ◽  
Wastewater Reuse ◽  
Advanced Oxidation ◽  
Advanced Treatment ◽  
Reduction Processes ◽  
Treatment Processes ◽  
Oxidation Reduction ◽  
Health Related ◽  
Water And Wastewater ◽  
Advanced Reduction

Emerging contaminants’ presence in water, wastewater, and aquatic environments has been widely reported. Their environmental and health-related effects, and the increasing tendency towards wastewater reuse require technology that could remove to a greater degree, or even mineralize, all these contaminants. Currently, the most commonly used process technologies for their removal are advanced oxidation processes (AOPs); however, recent advances have highlighted other advanced treatment processes (ATPs) as possible alternatives, such as advanced reduction processes (ARPs) and advanced oxidation-reduction processes (AORPs). Although they are not yet widely diffused, they may remove contaminants that are not readily treatable by AOPs, or offer better performance than the former. This paper presents an overview of some of the most common or promising ATPs for the removal of contaminants from water and wastewater, and their application, with discussion of their limitations and merits. Issues about technologies’ costs and future perspectives in the water sector are discussed.

Degradation of tetracycline antibiotics: Mechanisms and kinetic studies for advanced oxidation/reduction processes

Chemosphere ◽  
2010 ◽  
Vol 78 (5) ◽  
pp. 533-540 ◽  
Author(s):  
Joonseon Jeong ◽  
Weihua Song ◽  
William J. Cooper ◽  
Jinyoung Jung ◽  
John Greaves
Keyword(s):  
Advanced Oxidation ◽  
Kinetic Studies ◽  
Tetracycline Antibiotics ◽  
Reduction Processes ◽  
Oxidation Reduction

Application of UV-Based Advanced Oxidation Processes in Water and Wastewater Treatment

2019 ◽  
pp. 384-414 ◽  
Author(s):  
Nurazim Ibrahim ◽  
Sharifah Farah Fariza Syed Zainal ◽  
Hamidi Abdul Aziz
Keyword(s):  
Advanced Oxidation Processes ◽  
Degradation Mechanism ◽  
Advanced Oxidation ◽  
Water And Wastewater Treatment ◽  
Current Application ◽  
Principal Mechanism ◽  
Low Concentration ◽  
Oxidation Processes ◽  
Treatment Processes ◽  
Water And Wastewater

The presence of hazardous micropollutants in water and wastewater is one of the main concerns in water management system. This micropollutant exists in a low concentration, but there are possible hazards to humans and organisms living in the water. Moreover, its character that is recalcitrant to microbiological degradation makes it difficult to deal with. Advanced oxidation processes (AOPs) are efficient methods to remove low concentration micropollutants. AOPs are a set of processes consisting the production of very reactive oxygen species which able to destroy a wide range of organic compounds. The main principal mechanism in UV-based radical AOP treatment processes is the use ultraviolet light to initiate generation of hydroxyl radicals used to destroy persistent organic pollutants. Therefore, this chapter presents an overview on the principle of radical oxidant species generation and degradation mechanism by various type of UV based AOP in treating contaminants present in water and wastewater. The current application and possible improvement of the technology is also presented in this chapter.

Degradation of tetracyclines in different water matrices by advanced oxidation/reduction processes based on gamma radiation

2012 ◽  
Vol 88 (6) ◽  
pp. 1096-1108 ◽  
Author(s):  
Jesús J. López Peñalver ◽  
Carla V. Gómez Pacheco ◽  
Manuel Sánchez Polo ◽  
José Rivera Utrilla
Keyword(s):  
Gamma Radiation ◽  
Advanced Oxidation ◽  
Reduction Processes ◽  
Oxidation Reduction

scholarly journals Contaminants of Emerging Concern Removal by High-Energy Oxidation-Reduction Processes: State of the Art

2019 ◽  
Vol 9 (21) ◽  
pp. 4562 ◽  
Author(s):  
Andrea Capodaglio
Keyword(s):  
Emerging Contaminants ◽  
Advanced Oxidation ◽  
High Energy ◽  
Water Radiolysis ◽  
Primary Role ◽  
Oxidation Processes ◽  
Rapid Decomposition ◽  
Reduction Processes ◽  
Free Process ◽  
Complex Solutions

The presence of ‘emerging contaminants’, i.e., chemicals yet without a regulatory status and poorly understood impact on human health and environment, in wastewater and aquatic environments is widely reported. No established technology, to date, can simultaneously and completely remove all these contaminants, even though some Advanced Oxidation Processes (AOPs,) have demonstrated capacity for some degradation of these compounds. High-energy, radiolytic processing of water matrices using various sources: electron beam (EB), ɣ-rays or non-thermal plasma (NTP) have shown excellent results in many applications, although these remain at the moment isolated examples and scarcely known. High-energy irradiation constitutes an additive-free process that uses short-lived, highly reactive radicals (both oxidating and reducing) generated by water radiolysis, which can instantaneously decompose organic pollutants. Several studies have demonstrated its effectiveness, as a stand-alone process or combined with others, in the rapid decomposition (up to complete mineralization) of organic compounds in pure and complex solutions, and in the removal or inactivation of microorganisms and parasites, without production of leftover residual compounds in solution. High-energy oxidation processes (a.k.a. Advanced Oxidation & Reduction Processes—AORPs) could have a primary role in future strategies addressing emerging contaminants.

As(III) and Cr(VI) oxyanion removal from water by advanced oxidation/reduction processes—a review

2018 ◽  
Vol 26 (3) ◽  
pp. 2203-2227 ◽  
Author(s):  
Belisa A. Marinho ◽  
Raquel O. Cristóvão ◽  
Rui A. R. Boaventura ◽  
Vítor J. P. Vilar
Keyword(s):  
Advanced Oxidation ◽  
Reduction Processes ◽  
Oxidation Reduction

Removing Estrogenic Steroids from Waters: The Role of Reducing Hydrated Electron Reactions

2011 ◽  
Vol 14 (1) ◽  
Author(s):  
Kimberly A. Rickman ◽  
Stephen P. Mezyk
Keyword(s):  
Water Treatment ◽  
Rate Constants ◽  
Advanced Oxidation ◽  
Hydrated Electron ◽  
Treatment Methods ◽  
Reduction Processes ◽  
Oxidation Reduction

AbstractThe presence of both synthetic and natural steroids in waters is currently one of the most pressing concerns to water treatment utilities. The use of radical-based advanced oxidation/reduction processes (AO/RPs) to augment standard water treatment methods may be of interest. In support of the application of these AO/RP rate constants have been determined for the reaction of the reducing hydrated electron (e

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