AOPs enhance the migration of polystyrene nanoparticles in saturated quartz sand

2021 ◽  
Author(s):  
Kai-Xin Zhang ◽  
Chao Song ◽  
Shan Zhao ◽  
Zhen Yan ◽  
Li-Juan Feng ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Quartz Sand ◽  
Advanced Oxidation Processes ◽  
Wastewater Treatment Plants ◽  
Advanced Oxidation ◽  
Point Sources ◽  
Polystyrene Nanoparticles ◽  
Oxidation Processes ◽  
Treatment Processes ◽  
Significant Point

Wastewater treatment plants are suspected to be significant point sources of microplastic and nanoplastic particles (NPs) into the environment. As one of the main wastewater treatment processes, advanced oxidation processes...

scholarly journals COMPARISON OF FLUTAMIDE DEGRADATION VIA UV/TIO2, UV/H2O2 AND UV/H2O2/TIO2 SYSTEMS

2020 ◽  
Vol 2 (1) ◽  
pp. 4-10
Author(s):  
Lucian Alexandru Constantin ◽  
Mirela Alina Constantin ◽  
Ines Nitoi ◽  
Toma Galaon ◽  
Valeriu Robert Badescu ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Organic Pollutants ◽  
Advanced Oxidation Processes ◽  
Degradation Kinetics ◽  
Advanced Oxidation ◽  
Optimum Conditions ◽  
Oxidation Processes ◽  
Treatment Processes ◽  
Good Potential ◽  
Conventional Wastewater Treatment

Synthetic solutions of flutamide were subject to degradation using three advanced oxidation systems, namely UV/TiO2, UV/H2O2 and UV/H2O2/TiO2. Optimum conditions and degradation kinetics has been established for all three systems. The experimental results showed that all three systems can be successfully used for flutamide degradation with efficiencies higher than 99% and that advanced oxidation processes are showing good potential for degradation of organic pollutants that cannot be suitable removed/degraded using conventional wastewater treatment processes.

scholarly journals Effectiveness of Advanced Oxidation Processes in Wastewater Treatment: State of the Art

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2094
Author(s):  
Laura Antiñolo Bermúdez ◽  
Jaime Martín Pascual ◽  
María del Mar Muñio Martínez ◽  
Jose Manuel Poyatos Capilla
Keyword(s):  
Wastewater Treatment ◽  
Advanced Oxidation Processes ◽  
Wastewater Treatment Plants ◽  
State Of The Art ◽  
Advanced Oxidation ◽  
Natural Environments ◽  
Tertiary Treatment ◽  
Oxidation Processes ◽  
Different Types ◽  
Degradation Of Pollutants

In recent years, many scientific studies have focused their efforts on quantifying the different types of pollutants that are not removed in wastewater treatment plants. Compounds of emerging concern (CECs) have been detected in different natural environments. The presence of these compounds in wastewater is not new, but they may have consequences in the future. These compounds reach the natural environment through various routes, such as wastewater. This review focuses on the study of tertiary treatment with advanced oxidation processes (AOPs) for the degradation of CECs. The main objective of the different existing AOPs applied to the treatment of wastewater is the degradation of pollutants that are not eliminated by means of traditional wastewater treatment.

scholarly journals Kinetic Modeling of Advanced Oxidation Processes Using Microreactors: Challenges and Opportunities for Scale-Up

2021 ◽  
Vol 11 (3) ◽  
pp. 1042
Author(s):  
Danilo Russo
Keyword(s):  
Advanced Oxidation Processes ◽  
Wastewater Treatment Plants ◽  
Scale Up ◽  
Advanced Oxidation ◽  
Future Research ◽  
Great Opportunity ◽  
Oxidation Processes ◽  
Treatment Processes ◽  
Intrinsic Kinetics ◽  
Challenges And Opportunities

With the increasing number of recalcitrant pollutants in wastewater treatment plants, there will be a stringent need for rapid and convenient development of tertiary treatment processes such as advanced oxidation processes (AOPs). Microreactors offer a great opportunity for ultrafast and safe intrinsic kinetic parameters determination, by-products identification, and ecotoxicity assessment. Despite the considerable potential of these devices, they have been mostly used for catalyst screening or pseudo-first order kinetics determination, not allowing for knowledge transfer across scales. This work offers an overview of the adoption of micro- and photo-microreactors for intrinsic kinetics investigations in the field of AOPs to guide future research efforts.

scholarly journals Albendazole Degradation Possibilities by UV-Based Advanced Oxidation Processes

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Davor Ljubas ◽  
Mirta Čizmić ◽  
Katarina Vrbat ◽  
Draženka Stipaničev ◽  
Siniša Repec ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Advanced Oxidation Processes ◽  
New Technologies ◽  
Wastewater Treatment Plants ◽  
Degradation Products ◽  
Advanced Oxidation ◽  
Degradation Process ◽  
Nontarget Organisms ◽  
Uv Photolysis ◽  
Oxidation Processes

Pharmaceuticals are present in an aquatic environment usually in low (ng/L) concentrations. Their continuous release can lead to unwanted effects on the nontarget organisms. The main points of their collection and release into the environment are wastewater treatment plants. The wastewater treatment plants should be upgraded by new technologies, like advanced oxidation processes (AOPs), to be able to degrade these new pollutants. In this study, the degradation of albendazole (ALB), a drug against parasitic helminths, was investigated using four UV-based AOPs: UV photolysis, UV photocatalysis (over TiO2 film), UV + O3, and UV + H2O2. The ranking of the degradation process degree of the ALB and its degradation products for studied processes is as follows: UV photolysis < UV photocatalysis with TiO2 < UV + O3 < UV + H2O2. The fastest degradation of ALB and its degradation products was obtained by UV-C + H2O2 process with a degradation efficiency of 99.95%, achieved in 15 minutes.

Textile Wastewater Treatment by Advanced Oxidation Processes

2018 ◽  
pp. 93-116 ◽  
Author(s):  
Gamallo Maria ◽  
Moldes-Diz Yolanda ◽  
Taboada-Puig Roberto ◽  
Lema Juan Manuel ◽  
Feijoo Gumersindo ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Textile Wastewater ◽  
Oxidation Processes ◽  
Textile Wastewater Treatment

scholarly journals Recent Advances in Dynamic Modeling and Process Control of PVA Degradation by Biological and Advanced Oxidation Processes: A Review on Trends and Advances

Environments ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 116
Author(s):  
Yi-Ping Lin ◽  
Ramdhane Dhib ◽  
Mehrab Mehrvar
Keyword(s):  
Wastewater Treatment ◽  
Process Control ◽  
Dynamic Modeling ◽  
Reaction Mechanisms ◽  
Industrial Wastewater ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Oxidation Processes ◽  
Treatment Technologies ◽  
And Control

Polyvinyl alcohol (PVA) is an emerging pollutant commonly found in industrial wastewater, owing to its extensive usage as an additive in the manufacturing industry. PVA’s popularity has made wastewater treatment technologies for PVA degradation a popular research topic in industrial wastewater treatment. Although many PVA degradation technologies are studied in bench-scale processes, recent advancements in process optimization and control of wastewater treatment technologies such as advanced oxidation processes (AOPs) show the feasibility of these processes by monitoring and controlling processes to meet desired regulatory standards. These wastewater treatment technologies exhibit complex reaction mechanisms leading to nonlinear and nonstationary behavior related to variability in operational conditions. Thus, black-box dynamic modeling is a promising tool for designing control schemes since dynamic modeling is more complicated in terms of first principles and reaction mechanisms. This study seeks to provide a survey of process control methods via a comprehensive review focusing on PVA degradation methods, including biological and advanced oxidation processes, along with their reaction mechanisms, control-oriented dynamic modeling (i.e., state-space, transfer function, and artificial neural network modeling), and control strategies (i.e., proportional-integral-derivative control and predictive control) associated with wastewater treatment technologies utilized for PVA degradation.

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