scholarly journals ADVANCED OXIDATION PROCESS (AOPS) FOR MICROPOLLUTANT TREATMENT: A REVIEW

2017 ◽  
Vol 14 (27) ◽  
pp. 65-74
Author(s):  
Fernando J. M. KUFFEL ◽  
Cassiano R. BRANDT ◽  
Daniel KUHN ◽  
Clarice STEFFENS ◽  
Simone STULP ◽  
...  
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Complex Structure ◽  
Advanced Oxidation ◽  
New Order ◽  
Oxidation Processes ◽  
Rivers And Lakes ◽  
Application Characteristics ◽  
Made In

The growing preoccupation about drinking water quality available on earth, a new order of emergent pollutants in rivers and lakes has called the attention of the scientific community, the micropollutants. These compounds come from the irregular or involuntary ejectment of substances such as pesticides, drugs, insecticides and other into the nature. By having a complex structure, the micropollutants have high resistance over the traditional water treatment to human consume. Thus, alternatives methodologies to their degradation have been studied, such as advanced oxidation process (AOPs). The AOPs are based in the formation of hydroxyls radicals (OH-) highly reactive that degrade complexes substances into lesser aggressive products as CO2 and water. Even though many methods to generate hydroxyls radicals from advanced oxidation processes exist, they differentiate on the application and viability. This review shows different methodologies using AOPs and their respective application characteristics, also some works already made in complexes substances treatment, which prove their efficiency.

An insight into the effective advanced oxidation process for treatment of simulated textile dye waste water

RSC Advances ◽  
2014 ◽  
Vol 4 (75) ◽  
pp. 39941-39947 ◽  
Author(s):  
Jhimli Paul Guin ◽  
D. B. Naik ◽  
Y. K. Bhardwaj ◽  
Lalit Varshney
Keyword(s):  
Waste Water ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Textile Dye ◽  
Oxidation Processes ◽  
Insight Into

The comparison in the extent of % mineralization of Simulated Textile Dye Waste Water (STDWW) in three Advanced Oxidation Processes.

scholarly journals Decomplexation of electroplating wastewater by ozone-based advanced oxidation process

2018 ◽  
Vol 79 (3) ◽  
pp. 589-596 ◽  
Author(s):  
Zhuoyue Wang ◽  
Ji Li ◽  
Wei Song ◽  
Xiaolei Zhang ◽  
Jiangyu Song
Keyword(s):  
Citric Acid ◽  
Advanced Oxidation Processes ◽  
Heavy Metal Contamination ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Ethylenediaminetetraacetic Acid ◽  
Advanced Oxidation ◽  
Electroplating Wastewater ◽  
Oxidation Processes ◽  
Terrestrial Life

Abstract Heavy metal contamination from electroplating wastewater is a serious risk to terrestrial life and public health. The complexed metal cannot be effectively removed by traditional precipitation without decomplexing. In this work, four ozone-based advanced oxidation processes, O3, O3/H2O2, O3/UV and O3/H2O2/UV to decomplex electroplating wastewater were investigated and their performance compared. Ethylenediaminetetraacetic acid (EDTA) and citric acid are the most common components of electroplating wastewater. They were used as representatives to study the decomplexation and mineralization of complexes in the ozone-based advanced oxidation processes. Among all, the highest degradation and mineralization efficiency of EDTA occurred in O3/UV and was 65% and 53% in 60 min, respectively. For citric acid, the highest degradation (77%) and mineralization (56%) efficiency was observed in the O3/H2O2/UV process. This indicates that selection of the advanced oxidation process is determined by the target contaminant.

Advanced oxidation process–biological system for wastewater containing a recalcitrant pollutant

2007 ◽  
Vol 55 (12) ◽  
pp. 229-235 ◽  
Author(s):  
I. Oller ◽  
S. Malato ◽  
J.A. Sánchez-Pérez ◽  
M.I. Maldonado ◽  
W. Gernjak ◽  
...  
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation Process ◽  
Catalyst Concentration ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Ozone Treatment ◽  
Saline Wastewater ◽  
Oxidation Processes ◽  
Oxidative Processes ◽  
Parabolic Collector

Two advanced oxidation processes (AOPs), ozonation and photo-Fenton, combined with a pilot aerobic biological reactor at field scale were employed for the treatment of industrial non-biodegradable saline wastewater (TOC around 200 mg L−1) containing a biorecalcitrant compound, α-methylphenylglycine (MPG), at a concentration of 500 mg L−1. Ozonation experiments were performed in a 50-L reactor with constant inlet ozone of 21.9 g m−3. Solar photo-Fenton tests were carried out in a 75-L pilot plant made up of four compound parabolic collector (CPC) units. The catalyst concentration employed in this system was 20 mg L−1 of Fe2 +  and the H2O2 concentration was kept in the range of 200–500 mg L−1. Complete degradation of MPG was attained after 1,020 min of ozone treatment, while only 195 min were required for photo-Fenton. Samples from different stages of both AOPs were taken for Zahn–Wellens biocompatibility tests. Biodegradability enhancement of the industrial saline wastewater was confirmed (>70% biodegradability). Biodegradable compounds generated during the preliminary oxidative processes were biologically mineralised in a 170-L aerobic immobilised biomass reactor (IBR). The global efficiency of both AOP/biological combined systems was 90% removal of an initial TOC of over 500 mg L−1.

The performance of a sulfate-radical mediated advanced oxidation process in the degradation of organic matter from secondary effluents

2018 ◽  
Vol 4 (6) ◽  
pp. 773-782 ◽  
Author(s):  
Dayang Wang ◽  
Lirong Cheng ◽  
Mingming Wang ◽  
Xuezhen Zhang ◽  
Dong Xue ◽  
...  
Keyword(s):  
Organic Matter ◽  
Transition Metal ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Sulfate Radical ◽  
Oxidation Processes ◽  
Secondary Effluents ◽  
Energy Activation

The effects of sulfate radical-mediated advanced oxidation processes with transition metal and energy activation methods were investigated during effluent organic matter (EfOM) degradation.

Effects of bromide on UV/chlorine advanced oxidation process

2009 ◽  
Vol 9 (6) ◽  
pp. 627-634 ◽  
Author(s):  
Q. Zhao ◽  
C. Shang ◽  
X. Zhang
Keyword(s):  
Natural Organic Matter ◽  
Hydroxyl Radicals ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Quantum Yields ◽  
High Quantum Yield ◽  
Considerable Decrease ◽  
Oxidation Processes

High quantum yield (1.4 mol Es−1) of hydroxyl radicals (∙OH) from photolysis of chlorine under typical disinfection conditions indicates the potential of UV/chlorine coexposure in serving as both disinfection and advanced oxidation processes (AOP). In this study, photolysis of chlorine and bromine was explored in buffer and simulated natural water solutions under low-pressure UV (LPUV) and medium-pressure UV (MPUV) lamps. At pH 6.5 and 8.5, the quantum yields of bromine photolysis were 3.8 and 0.6 for MPUV, and 4.4 and 0.8 for LPUV, respectively. At pH 6.5, the photolysis of bromine was faster than that of chlorine under either MPUV or LPUV source, while at a higher pH of 8.5, the contrary was found. For all conditions tested, the presence of bromide did not significantly change the observed photolysis rate of total free halogen during the UV/chlorine process in the presence or absence of natural organic matter. Upon UV irradiation, chlorine always produces higher ∙OH concentration than bromine does. The presence of bromide results in considerable decrease of ∙OH concentration at pH 6.5, compared to that obtained from the UV/chlorine process in the absence of bromide.

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.

scholarly journals Degradation Efficiency and Kinetics Analysis of an Advanced Oxidation Process Utilizing Ozone, Hydrogen Peroxide and Persulfate to Degrade the Dye Rhodamine B

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 974
Author(s):  
Piotr Zawadzki ◽  
Małgorzata Deska
Keyword(s):  
Hydrogen Peroxide ◽  
Rhodamine B ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation Process ◽  
Dye Degradation ◽  
Advanced Oxidation ◽  
Degradation Process ◽  
Oxidation Processes ◽  
First Order Kinetics ◽  
Ozonation Process

In this study, the effectiveness of a rhodamine B (RhB) dye degradation process at a concentration of 20 mg/L in different advanced oxidation processes—H2O2/UV, O3/UV and PDS/UV—has been studied. The use of UV in a photo-assisted ozonation process (O3/UV) proved to be the most effective method of RhB decolorization (90% after 30 min at dye concentration of 100 mg/L). The addition of sulfate radical precursors (sodium persulfate, PDS) to the reaction environment did not give satisfactory effects (17% after 30 min), compared to the PDS/UV system (70% after 30 min). No rhodamine B decolorization was observed using hydrogen peroxide as a sole reagent, whereas an effect on the degree of RhB degradation was observed when UV rays strike the sample with H2O2 (33% after 30 min). The rhodamine B degradation process followed the pseudo-first-order kinetics model. The combined PDS/O3/UV process has shown 60% color removal after 30 min of reaction time at an initial dye concentration of 100 mg/L. A similar effectiveness was obtained by only applying ozone or UV-activated persulfate, but at a concentration 2–5 times lower (20 mg/L). The results indicated that the combined PDS/O3/UV process is a promising method for high RhB concentrations (50–100 mg/L) comparing to other alternative advanced oxidation processes.

Treatment of diglyme containing wastewater by advanced oxidation - process design and optimisation

2001 ◽  
Vol 44 (5) ◽  
pp. 287-293 ◽  
Author(s):  
D. Grossmann ◽  
H. Köser ◽  
R. Kretschmer ◽  
M. Porobin
Keyword(s):  
Hydrogen Peroxide ◽  
Process Design ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Synthetic Process ◽  
Oxidation Processes ◽  
Toc Removal ◽  
Irradiation Energy ◽  
H2o2 Oxidation

Diglyme (CAS No. 111-96-6), a biorefractive ether with teratogenic properties is of considerable importance as a solvent in the synthetic chemical industry. Results of lab-scale investigations into the optimal conditions for the oxidative mineralisation of 0.05 to 1 g/L of diglyme in synthetic process waters by hydrogen peroxide and ozone based advanced oxidation processes are presented. Fenton, photo-assisted Fenton and UV/H2O2 oxidation processes show acceptable TOC removals. At 50°C the initial TOC removal rates varies between 0.07 and 6g TOC/L*h. The rates increase with the initial diglyme and hydrogen peroxide concentration as well as with the UV irradiation energy intensity. For example at a 1g/l diglyme concentration a stoichiometric H2O2 addition resulted in TOC degradation of 60% to 70% after 30 minutes under the investigated conditions. Treatment with ozone/H2O2 at a pH of 8 and 25°C required at least 100 minutes to achieve comparable mineralisation results. Biodegradability can be reached in far shorter times. Ozone on its own cannot be recommended for diglyme treatment. If complete mineralisation of diglyme is the objective, the UV/H2O2 oxidation process should be favoured. The ozone/H2O2 process might offer a viable alternative in cases where the oxidation step is followed by biological wastewater treatment, so that biodegradability is aimed at.

scholarly journals Removal efficiency of anionic surfactants from water during UVC photolysis and advanced oxidation process in H2O2/UVC system

2017 ◽  
Vol 43 (1) ◽  
pp. 20-26 ◽  
Author(s):  
Francisco Ríos ◽  
Magdalena Olak-Kucharczyk ◽  
Marta Gmurek ◽  
Stanisław Ledakowicz
Keyword(s):  
Surface Waters ◽  
Aquatic Ecosystems ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Anionic Surfactants ◽  
Advanced Oxidation ◽  
Alkyl Benzene ◽  
Linear Alkyl Benzene Sulphonate ◽  
Influence Of Ph

AbstractSurfactants after their use are discharged into aquatic ecosystems. These compounds may be harmful to fauna and flora in surface waters or can be toxic for microorganisms of the activated sludge or biofilm in WWTP. In order to determine effectiveness of different advanced oxidation processes on the degradation of surfactants, in this study the degradation of anionic surfactants in aqueous solution using photolysis by 254 nm irradiation and by advanced oxidation process in a H2O2/UVC system was investigated. Two representatives of anionic surfactants, linear alkyl benzene sulphonate (LAS-R11–14) and ether carboxylic derivate (EC-R12–14E10) were tested. The influence of pH, initial surfactant concentration and dose of hydrogen peroxide on the degradation was also studied. Results show outstanding effectiveness of the H2O2/UVC system in the removal of surfactant from aqueous solutions.

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