scholarly journals Recent Developments in Advanced Oxidation Processes for Organics-Polluted Soil Reclamation

Catalysts ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 64
Author(s):  
Crina Calenciuc ◽  
Antía Fdez-Sanromán ◽  
Gabriela Lama ◽  
Sivasankar Annamalai ◽  
Angeles Sanromán ◽  
...  
Keyword(s):  
Advanced Oxidation Processes ◽  
Environmental Problem ◽  
Advanced Oxidation ◽  
Influential Factors ◽  
Coupled Processes ◽  
Soil Reclamation ◽  
Polluted Soils ◽  
Oxidation Processes ◽  
The Status ◽  
Recent Developments

Soil pollution has become a substantial environmental problem which is amplified by overpopulation in different regions. In this review, the state of the art regarding the use of Advanced Oxidation Processes (AOPs) for soil remediation is presented. This review aims to provide an outline of recent technologies developed for the decontamination of polluted soils by using AOPs. Depending on the decontamination process, these techniques have been presented in three categories: the Fenton process, sulfate radicals process, and coupled processes. The review presents the achievements of, and includes some reflections on, the status of these emerging technologies, the mechanisms, and influential factors. At the present, more investigation and development actions are still desirable to bring them to real full-scale implementation.

Phenol wastewater remediation: advanced oxidation processes coupled to a biological treatment

2007 ◽  
Vol 55 (12) ◽  
pp. 221-227 ◽  
Author(s):  
A. Rubalcaba ◽  
M.E. Suárez-Ojeda ◽  
F. Stüber ◽  
A. Fortuny ◽  
C. Bengoa ◽  
...  
Keyword(s):  
Biological Treatment ◽  
Advanced Oxidation Processes ◽  
Treatment Plant ◽  
Advanced Oxidation ◽  
Industrial Effluents ◽  
Coupled Processes ◽  
Catalytic Wet Air Oxidation ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Oxidation Processes

Nowadays, there are increasingly stringent regulations requiring more and more treatment of industrial effluents to generate product waters which could be easily reused or disposed of to the environment without any harmful effects. Therefore, different advanced oxidation processes were investigated as suitable precursors for the biological treatment of industrial effluents containing phenol. Wet air oxidation and Fenton process were tested batch wise, while catalytic wet air oxidation and H2O2-promoted catalytic wet air oxidation processes were studied in a trickle bed reactor, the last two using over activated carbon as catalyst. Effluent characterisation was made by means of substrate conversion (using high liquid performance chromatography), chemical oxygen demand and total organic carbon. Biodegradation parameters (i.e. maximum oxygen uptake rate and oxygen consumption) were obtained from respirometric tests using activated sludge from an urban biological wastewater treatment plant (WWTP). The main goal was to find the proper conditions in terms of biodegradability enhancement, so that these phenolic effluents could be successfully treated in an urban biological WWTP. Results show promising research ways for the development of efficient coupled processes for the treatment of wastewater containing toxic or biologically non-degradable compounds.

scholarly journals Recent Developments in Homogeneous Advanced Oxidation Processes for Water and Wastewater Treatment

2014 ◽  
Vol 2014 ◽  
pp. 1-21 ◽  
Author(s):  
M. Muruganandham ◽  
R. P. S. Suri ◽  
Sh. Jafari ◽  
M. Sillanpää ◽  
Gang-Juan Lee ◽  
...  
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Process Efficiency ◽  
Solution Ph ◽  
Water And Wastewater Treatment ◽  
Experimental Conditions ◽  
Oxidation Processes ◽  
Oxidant Concentration ◽  
Recent Developments ◽  
Water And Wastewater

This paper reports on recent developments in homogeneous Advanced Oxidation Processes (AOPs) for the treatment of water and wastewater. It has already been established that AOPs are very efficient compared to conventional treatment methods for degradation and mineralization of recalcitrant pollutants present in water and wastewater. AOPs generate a powerful oxidizing agent, hydroxyl radical, which can react with most of the pollutants present in wastewater. Therefore, it is important to discuss recent developments in AOPs. The homogeneous AOPs such as O3, UV/O3, UV/O3/H2O2, and UV/H2O2, Fe2+/H2O2, UV/Fe2+/H2O2on the degradation of pollutants are discussed in this paper. The influence on the process efficiency of various experimental parameters such as solution pH, temperature, oxidant concentration, and the dosage of the light source is discussed. A list of contaminants used for degradation by various AOPs and the experimental conditions used for the treatment are discussed in detail.

Recent advances in single-atom catalysts for advanced oxidation processes in water purification

2021 ◽  
Vol 412 ◽  
pp. 125253
Author(s):  
Bingkun Huang ◽  
Zelin Wu ◽  
Hongyu Zhou ◽  
Jiayi Li ◽  
Chenying Zhou ◽  
...  
Keyword(s):  
Water Purification ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Single Atom ◽  
Oxidation Processes ◽  
Recent Advances
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