Advanced Oxidation Processes for Wastewater Treatment: State of the Art

Poyatos, J. M.; Muñío, María M.; Almécija, M. Carmen; Torres, J. C.; Hontoria, E.; Osorio, Francisco

doi:10.1007/s11270-009-0065-1

Cited by 401 publications

(177 citation statements)

References 64 publications

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“…In this wavelength, the excitation coefficient for gas-phase ozone is 3,300\M\cm, a value much greater than that of hydrogen peroxide (18.6\M\cm) Poyatos et al (2010). The Fig.…”

Section: Uv-ozone Processmentioning

confidence: 78%

“….76 %, respectively. Increasing of pH yielded two opposing effects: one the generation of more hydroxyl radical since the molar extinction coefficient of hydroperoxide anion (HO 2 -), the ionic form of H 2 O 2 at high pH, was higher than that of H 2 O 2 and the other the hydroperoxide anion (HO 2 -) could also scavenge the hydroxyl radicals by the following equation (Poyatos et al 2010).…”

Section: Methodsmentioning

confidence: 99%

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Comparison of treatment and energy efficiency of advanced oxidation processes for the distillery wastewater

Asaithambi

Saravanathamizhan²,

Matheswaran

2014

Int. J. Environ. Sci. Technol.

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The treatment of distillery effluent was investigated experimentally by various advanced oxidation processes such as Fenton and ozone with different combination of UV and H 2 O 2 system. The effect of operating parameters such as hydrogen peroxide concentration, initial effluent pH and Fe 2? concentration on Fenton system for the percentage color and chemical oxygen demand removal has been studied. The energy per order was also calculated for the advanced oxidation process. The ozone-photoFenton system has been observed that 100 % color and chemical oxygen demand removal compared with other process studied in the present investigation within 4 h of treatment time. Electrical energy per order has been calculated for all the process and found that ozone-photoFenton shows lesser energy consumption of about 0.01 kWh/m 3 order 1 , for the complete color and chemical oxygen demand removal.

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“…In this wavelength, the excitation coefficient for gas-phase ozone is 3,300\M\cm, a value much greater than that of hydrogen peroxide (18.6\M\cm) Poyatos et al (2010). The Fig.…”

Section: Uv-ozone Processmentioning

confidence: 78%

Section: Methodsmentioning

confidence: 99%

Comparison of treatment and energy efficiency of advanced oxidation processes for the distillery wastewater

Asaithambi

Saravanathamizhan²,

Matheswaran

2014

Int. J. Environ. Sci. Technol.

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“…Higher doses of H 2 O 2 produce more number of OH radicals which degrade the pollutants in the wastewater. Hydrogen peroxide decomposes in one way or another, depending on the type of reaction and the system conditions [28]. Efficiency of H 2 O 2 decreases with time due to the reasons that, it is consumed gradually and persistent intermediates remain in the system which hinders the performance of the system [26].…”

Section: E Hydrogen Peroxidementioning

confidence: 99%

Combined Biological and Advanced Oxidation Treatment Processes for COD and Color Removal of Sewage Water

Mehmood¹,

Batool²,

Qazi³

2013

IJESD

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Abstract-Wastewater (WW) generation is inevitable in rapidly growing and urbanizing societies resulting in significant damage to the quality and quantity of fresh water resources. The study was intended to harness the reuse potential of sewage WW using integrated wastewater treatment process. Composite sample of sewage WW was collected from inlet of sewage wastewater treatment plant. The WW sample was batch wise subjected to activated sludge process (ASP), ozonation, UV irradiation, H 2 O 2 oxidation and sand filtration separately for different time intervals (i.e. 0 to 60 min) and concentrations of H 2 O 2 (0.1 to 1.0 mlL -1 ), followed by the integration of all the processes at their optimum conditions. Batch experiments were performed in pyrex containers using 1.5L sample except for ASP that is 20L. Efficiencies were measured in terms of COD, color and TSS removal along with changes in pH and temperature. Biological diversity of WW was also determined using cultural techniques followed by biochemical tests. Color reduction was much higher and faster than COD in all the tested treatment processes. Ozonation was the fastest process to remove 78% color in 30 minutes however, ASP was more economical for the same efficiency but requires high hydraulic retention time (HRT). Increase in UV irradiation time reduced COD and color by 54 and 69% after 60min respectively. Sand filter efficiently removed 97% TSS with marginal reduction in COD. Integration of 4 hr ASP, 24 min ozonation and 10 min UV exposure with 1 ml L -1 H 2 O 2 dose yielded 98 and 100% COD and Color reduction respectively.

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“…TiO2/UV) and chemical oxidation processes (e.g. O3) (17). TiO2 is certainly the most studied photocatalyst used to degrade organics in water.…”

Section: Introductionmentioning

confidence: 99%

Towards the use of metal–organic frameworks for water reuse: a review of the recent advances in the field of organic pollutants removal and degradation and the next steps in the field

2015

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Water reuse is becoming increasingly important as more and more areas in the world are facing water stress issues. Treatment of wastewater to attain the purity required for various usages from culture irrigation to drinking water is therefore key. Several water treatment options are already in place and while we will continue to use them, parallel efforts are required to: (i) address the removal of the most persistent chemicals in water and (ii) provide solutions for local communities. Recently, several studies on the use of metal-organic frameworks (MOFs) for the adsorption and photocatalytic degradation of organics in water have been reported. This enthusiasm originates from the large porosity and chemical tunability of MOFs -beneficial for adsorption -as well as their catalytic nature -beneficial for degradation. The present reviews proposes a comprehensive and critical analysis of the most recent studies on the use of MOFs for organics adsorption and photocatalytic degradation. The potential to use MOFs to catalyze the production of H2 from organic molecules, like water contaminants, is also addressed. Overall, the discussion is organised based on the type of organic pollutants targeted and encompasses those released in industrial, domestic and agricultural wastewater streams.3

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Advanced Oxidation Processes for Wastewater Treatment: State of the Art

Cited by 401 publications

References 64 publications

Comparison of treatment and energy efficiency of advanced oxidation processes for the distillery wastewater

Comparison of treatment and energy efficiency of advanced oxidation processes for the distillery wastewater

Combined Biological and Advanced Oxidation Treatment Processes for COD and Color Removal of Sewage Water

Towards the use of metal–organic frameworks for water reuse: a review of the recent advances in the field of organic pollutants removal and degradation and the next steps in the field

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