scholarly journals Cross-comparison of advanced oxidation processes for remediation of organic pollutants in water treatment systems

2019 ◽  
Author(s):  
Emma Ambrogi ◽  
Emily Asenath-Smith ◽  
William Ballard ◽  
Lee Moores ◽  
Jonathon Brame
Keyword(s):  
Water Treatment ◽  
Organic Pollutants ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Oxidation Processes

Advanced Oxidation Processes for Wastewater Remediation: Fundamental Concepts to Recent Advances

2021 ◽  
pp. 37-86
Keyword(s):  
Water Treatment ◽  
Organic Pollutants ◽  
Large Scale ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Oxidation Potential ◽  
Wastewater Remediation ◽  
Oxidation Processes ◽  
Sludge Disposal ◽  
Different Types

Industrialization and modernization in recent times have led to a water crisis across the world. Conventional methods of water treatment like physical, chemical and biological methods which comprise of many commonly used techniques like membrane separation, adsorption, chemical treatment etc. have been in use for many decades. However, problems like sludge disposal, high operating costs etc. have led to increased focus on Advanced Oxidation Processes (AOPs) as alternative treatment methods. AOPs basically involve reactions relying on the high oxidation potential of the hydroxyl (OH•) free radical. They have the potential to efficiently treat various toxic, organic pollutants and complete degradation of contaminants (mineralization) of emerging concern. Many different types of homogenous as well as heterogenous AOPs have been studied viz: UV/H2O2, Fenton, Photo-Fenton, Sonolysis, Photocatalysis etc. for treatment of a wide variety of organic pollutants. Different AOPs are suitable for different types of wastewater and hence proper selection of the right technique for a particular type of pollutant is required. The inherent advantages offered by AOPs like elimination of sludge disposal problems, operability under mild conditions, ability to harness sunlight, non selective nature (ability to degrade all organic and microbial contamination) etc. have made it one of the most actively researched areas in recent times for wastewater treatment. Despite the benefits and intense research, commercial applicability of AOPs as a practical technique for treating wastewater on a large scale is still far from satisfactory. Nevertheless, positive results in lab scale and pilot plant studies make them a promising water treatment technique for the future. In the present chapter, an attempt has been made to discuss all aspects of AOPs beginning with the fundamental concepts, classification, underlying mechanism, comparison, commercialization to the latest developments in AOPs.

Advanced Oxidation Processes for Wastewater Remediation: Fundamental Concepts to Recent Advances

2021 ◽  
pp. 37-86
Keyword(s):  
Water Treatment ◽  
Organic Pollutants ◽  
Large Scale ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Oxidation Potential ◽  
Wastewater Remediation ◽  
Oxidation Processes ◽  
Sludge Disposal ◽  
Different Types

Industrialization and modernization in recent times have led to a water crisis across the world. Conventional methods of water treatment like physical, chemical and biological methods which comprise of many commonly used techniques like membrane separation, adsorption, chemical treatment etc. have been in use for many decades. However, problems like sludge disposal, high operating costs etc. have led to increased focus on Advanced Oxidation Processes (AOPs) as alternative treatment methods. AOPs basically involve reactions relying on the high oxidation potential of the hydroxyl (OH•) free radical. They have the potential to efficiently treat various toxic, organic pollutants and complete degradation of contaminants (mineralization) of emerging concern. Many different types of homogenous as well as heterogenous AOPs have been studied viz: UV/H2O2, Fenton, Photo-Fenton, Sonolysis, Photocatalysis etc. for treatment of a wide variety of organic pollutants. Different AOPs are suitable for different types of wastewater and hence proper selection of the right technique for a particular type of pollutant is required. The inherent advantages offered by AOPs like elimination of sludge disposal problems, operability under mild conditions, ability to harness sunlight, non selective nature (ability to degrade all organic and microbial contamination) etc. have made it one of the most actively researched areas in recent times for wastewater treatment. Despite the benefits and intense research, commercial applicability of AOPs as a practical technique for treating wastewater on a large scale is still far from satisfactory. Nevertheless, positive results in lab scale and pilot plant studies make them a promising water treatment technique for the future. In the present chapter, an attempt has been made to discuss all aspects of AOPs beginning with the fundamental concepts, classification, underlying mechanism, comparison, commercialization to the latest developments in AOPs.

Carbon nanotubes-ferrite-manganese dioxide micromotors for advanced oxidation processes in water treatment

2018 ◽  
Vol 5 (12) ◽  
pp. 2993-3003 ◽  
Author(s):  
Roberto Maria-Hormigos ◽  
Marta Pacheco ◽  
Beatriz Jurado-Sánchez ◽  
Alberto Escarpa
Keyword(s):  
Carbon Nanotubes ◽  
Water Treatment ◽  
Manganese Dioxide ◽  
Organic Pollutants ◽  
Water Oxidation ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Oxidation Processes

Multifunctional SW-Fe2O3/MnO2 tubular micromotors are used for ‘on-the-fly’ advanced water oxidation of industrial organic pollutants.

scholarly journals The Influence of Photoactive Heterostructures on the Photocatalytic Removal of Dyes and Pharmaceutical Active Compounds: A Mini-Review

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1766
Author(s):  
Alexandru Enesca ◽  
Luminita Andronic
Keyword(s):  
Organic Pollutants ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Pollutant Concentration ◽  
Synthesis Methods ◽  
Promising Candidate ◽  
Traditional Treatment ◽  
Active Compounds ◽  
Oxidation Processes ◽  
Photocatalytic Removal

The diversification of pollutants type and concentration in wastewater has underlined the importance of finding new alternatives to traditional treatment methods. Advanced oxidation processes (AOPs), among others, are considered as promising candidate to efficiently remove organic pollutants such as dyes or pharmaceutical active compounds (PhACs). The present minireview resumes several recent achievements on the implementation and optimization of photoactive heterostructures used as photocatalysts for dyes and PhACs removal. The paper is focused on various methods of enhancing the heterostructure photocatalytic properties by optimizing parameters such as synthesis methods, composition, crystallinity, morphology, pollutant concentration and light irradiation.

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