Influence of processing conditions on the synergism between UV irradiation and chlorine toward the degradation of refractory organic pollutants in UV/chlorine advanced oxidation system

2020 ◽  
Vol 736 ◽  
pp. 139623 ◽  
Author(s):  
Aouattef Belghit ◽  
Slimane Merouani ◽  
Oualid Hamdaoui ◽  
Abdulaziz Alghyamah ◽  
Mohammed Bouhelassa
Keyword(s):  
Organic Pollutants ◽  
Uv Irradiation ◽  
Advanced Oxidation ◽  
Processing Conditions ◽  
Refractory Organic Pollutants ◽  
Oxidation System

H2O2/periodate (IO4−): a novel advanced oxidation technology for the degradation of refractory organic pollutants

2019 ◽  
Vol 5 (6) ◽  
pp. 1113-1123 ◽  
Author(s):  
Nor Elhouda Chadi ◽  
Slimane Merouani ◽  
Oualid Hamdaoui ◽  
Mohammed Bouhelassa ◽  
Muthupandian Ashokkumar
Keyword(s):  
Organic Pollutants ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology ◽  
Refractory Organic Pollutants

H2O2/periodate: a novel advanced oxidation process.

Removal of biological effects of organic pollutants in municipal wastewater by a novel advanced oxidation system

2021 ◽  
Vol 280 ◽  
pp. 111855
Author(s):  
Yuhe He ◽  
Laura Patterson-Fortin ◽  
Jenny Boutros ◽  
Richard Smith ◽  
Greg G. Goss
Keyword(s):  
Organic Pollutants ◽  
Municipal Wastewater ◽  
Biological Effects ◽  
Advanced Oxidation ◽  
Oxidation System

scholarly journals Enhanced UV Direct Photolysis And UV/H2O2 For Oxidation of Triclosan And Ibuprofen In Synthetic Effluent: An Experimental Study

2021 ◽  
Author(s):  
Vilson Conrado da Luz ◽  
Suzana Fatima Bazoti ◽  
Laura Behling ◽  
Clarissa Dalla Rosa ◽  
Gean Delise Leal Pasquali
Keyword(s):  
Experimental Study ◽  
Uv Radiation ◽  
Uv Irradiation ◽  
Chemical Species ◽  
Advanced Oxidation ◽  
Contaminant Concentration ◽  
Direct Photolysis ◽  
Uv Lamp ◽  
Oxidation System

Abstract This study aimed to evaluate the implementation of an advanced oxidation system based on UV radiation and UV/H2O2 for degradation of TCS and IBU in synthetic effluent. The assays occurred in a 2L reactor, protected from external light and equipped with a UV lamp (λ = 254nm). The effect of contaminant concentration, fractions of chemical species present, and mineralization were evaluated. In the UV/ H2O2 system, different concentrations of H2O2 were studied for oxidation of the contaminants. The kinetic experiments took place between 75 - 270 min of UV irradiation. The results showed > 99% oxidation of TCS in the direct photolysis system at pH 9.4 after 12 min. The degradation of IBU in the UV/H2O2 system, when 10mg L-1 of H2O2 was used, obtained 97.39% oxidation. We obtained k' values of 0.189 min-1 for TCS when its highest oxidation occurred, and k' values of 0.0219 min-1 for IBU. The system was not able to completely mineralize the contaminants, presenting high values of TOC and COD after treatment, thus suggesting the occurrence of phototransformation.

In-situ chemical oxidation: peroxide or persulfate coupled with membrane technology for wastewater treatment

2021 ◽  
Author(s):  
Huchuan Yan ◽  
Cui Lai ◽  
Dongbo Wang ◽  
Shiyu Liu ◽  
Xiaopei Li ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Organic Pollutants ◽  
Health And Safety ◽  
Chemical Oxidation ◽  
Membrane Technology ◽  
In Situ Chemical Oxidation ◽  
Refractory Organic Pollutants

Refractory organic pollutants in wastewater have the characteristics of persistence and toxicity, which seriously threaten the health and safety of humans and other organisms. Many researchers have committed to developing...

Oxygen vacancy induced peroxymonosulfate activation by Mg-doped Fe2O3 composites for advanced oxidation of organic pollutants

Chemosphere ◽  
2021 ◽  
pp. 130482
Author(s):  
Sheng Guo ◽  
Mengdie Liu ◽  
Liming You ◽  
Gang Cheng ◽  
Jun Li ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Organic Pollutants ◽  
Advanced Oxidation ◽  
Mg Doped

Prolonged persulfate activation by UV irradiation of green rust for the degradation of organic pollutants

2018 ◽  
Vol 17 (2) ◽  
pp. 1017-1021 ◽  
Author(s):  
Yiqun Chen ◽  
Shuxian Gao ◽  
Zizheng Liu ◽  
Senlin Shao ◽  
Weizhao Yin ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Uv Irradiation ◽  
Green Rust ◽  
Persulfate Activation

scholarly journals Comparison of Various Advanced Oxidation Processes for the Degradation of Bisphenol A

2017 ◽  
pp. 147
Author(s):  
Naser Jamshidi ◽  
Farzad Nezhad Bahadori ◽  
Ladan Talebiazar ◽  
Ali Akbar Azimi
Keyword(s):  
Bisphenol A ◽  
Uv Irradiation ◽  
Advanced Oxidation Processes ◽  
Irradiation Time ◽  
Advanced Oxidation ◽  
Chemical Oxidation ◽  
Photochemical Oxidation ◽  
Input Concentration ◽  
Oxidation Processes ◽  
Ph Range

Today, advanced oxidation processes (AOPs) is considered as a key and effective method for environment preservation from pollutions. In this study , advanced photochemical oxidation processes using O3/H2O2 and O3/H2O2/UV systems were investigated batch photolytic reactor in lab-scale for the degradation of bisphenol A (BPA). In ozone generator source, air, as of the initial instrument feed, changes to ozone after electrical action and reaction. The UV irradiation source was a medium-pressure mercury lamp 300 W that was immerse in the wastewater solution with in 1.5 liter volume reactor. The reaction was influenced by the pH, the input concentration of H2O2, the input concentration of BPA, ozone dosage, chemical oxidation demand (COD) and UV irradiation time. Results showed that at initial bisphenol A concentration of 100 mg/l will completely degrade after 60 minutes by using O3/H2O2 in the pH range from 9.8 to 10 and by adding UV, it will happen in less than 36 minutes in the pH range of 3 to 10. The O3/H2O2/UV process reduced COD to 75 percents.

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