Degradation of Artificial Sweetener Saccharin Sodium by Advanced Oxidation Technology

2013 ◽  
Vol 448-453 ◽  
pp. 7-10 ◽  
Author(s):  
Sheng Wen Chen ◽  
Wen Chao Li ◽  
Zhi Guo Sun ◽  
Hong Yong Xie
Keyword(s):  
Photocatalytic Oxidation ◽  
Advanced Oxidation ◽  
Degradation Process ◽  
Fenton Oxidation ◽  
Artificial Sweetener ◽  
First Order ◽  
Saccharin Sodium ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology ◽  
Oxidation System

In this paper, the advanced oxidation processes of photocatalytic oxidation and Photo-Fenton oxidation were used in degradation of emerging pollutants saccharin sodium. The concentration of saccharin sodium was determined by HPLC. The results showed both photocatalytic oxidation and Photo-Fenton oxidation had an effective degradation of saccharin sodium. The degradation process was followed the first-order reaction. The best conditions of photocatalytic oxidation system: 500W mercury lamp, 0.04 g TiO2, pH=7 and the best ratio of photo-Fenton was SAC:H2O2:Fe2+=5:60:1. The total organic carbon (TOC) of sample has significantly reduced to about 93% by the two systems.

Supercritical Fenton Oxidation: New Advanced Oxidation Technology

2020 ◽  
Vol 146 (4) ◽  
pp. 04020019
Author(s):  
Junru Bu ◽  
Xinkai Zhou ◽  
Huan Liu ◽  
Chunmian Lin
Keyword(s):  
Advanced Oxidation ◽  
Fenton Oxidation ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology

Research Progress of Water Treatment by Advanced Oxidation Technology

2013 ◽  
Vol 864-867 ◽  
pp. 2096-2099
Author(s):  
Yang Lai ◽  
Long Yun Yang
Keyword(s):  
Water Treatment ◽  
Water Oxidation ◽  
Photocatalytic Oxidation ◽  
Advanced Oxidation ◽  
Development Trend ◽  
Research Progress ◽  
Air Oxidation ◽  
Water Treatment Process ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology

Advanced Oxidation Technology (AOPs) is a new water treatment process, especially, for refractory organic wastewater treatment. This paper emphatically introduced the mechanism and research progress of Fenton oxidation method and Fenton method, ozone oxidation, photocatalytic oxidation, wet air oxidation, supercritical water oxidation, electrochemical oxidation, and ultrasonic oxidation technology. The cheaper and more effective catalyst and oxidant is the main development trend in the future AOPs.

Optimization of Removal of 2-methylisoborneol from Drinking Water using UV/H2O2

2016 ◽  
Vol 19 (1) ◽  
Author(s):  
Fengxun Tan ◽  
Haihan Chen ◽  
Daoji Wu ◽  
Nan Lu ◽  
Zhimin Gao
Keyword(s):  
Drinking Water ◽  
Conventional Treatment ◽  
Advanced Oxidation ◽  
Odor Threshold ◽  
Treatment Processes ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology

Abstract2-methylisoborneol (2-MIB) is a common odor-causing compound in drinking water with a low odor threshold (10 ng/L). Since conventional treatment processes cannot effectively remove it, this study investigated an advanced oxidation technology: UV/H

scholarly journals Degradation of the pharmaceuticals lamivudine and zidovudine using advanced oxidation processes

2020 ◽  
Vol 42 ◽  
pp. e9
Author(s):  
Alex Leandro Andrade de Lucena ◽  
Daniella Carla Napoleão ◽  
Hélder Vinícius Carneiro da Silva ◽  
Rayany Magali da Rocha Santana ◽  
Beatriz Galdino Ribeiro ◽  
...  
Keyword(s):  
Lactuca Sativa ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Kinetic Studies ◽  
Degradation Process ◽  
Oxidation Processes ◽  
First Order ◽  
Input Variables ◽  
Pharmaceutical Degradation ◽  
Uv C

The existence of pharmaceuticals in nature is a growing environmental problem, turning necessary the use of efficient treatments for the degradation of these substances, as the advanced oxidation processes (AOPs). In this work the AOPs UV/H2O2 and photo-Fenton were applied to degrade the pharmaceuticals lamivudine and zidovudine in an aqueous solution using a bench reactor, composed of three UV-C lamps. It was verified that the UV/H2O2 process presented a degradation of 97.33 ± 0.14% for lamivudine and 93.90 ± 0.33% for zidovudine, after 180 min of treatment and for an initial concentratin of each pharmaceutical of  5 mg.L-1 and [H2O2] of 600 mg.L-1.  A methodology by artificial neural networks (ANNs) was used to model the photocatalytic process, with the MLP 7-23-2 ANN representing it well, and determining the relative importance (%) of each of the input variables for the pharmaceutical’s degradation process. Kinetic studies for the pharmaceutical degradation and the conversion of organic matter showed good adjustments to the pseudo first-order models with R2 raging from 0.9705 to 0.9980. Toxicity assays for the before treatment solution indicated that the seeds Lactuca sativa and Portulaca grandiflora showed growth inhibition whereas the post-treatment solution inhibited only the growth of Lactuca sativa.

The Research with Advanced Oxidation Technology to Degrade Organic Matter in Micro-Polluted Water

2011 ◽  
Vol 219-220 ◽  
pp. 804-808
Author(s):  
Xia Zhao ◽  
He Ming Luo ◽  
Hui Xia Feng ◽  
Jian Qiang Zhang
Keyword(s):  
Organic Matter ◽  
Potassium Permanganate ◽  
Removal Rate ◽  
Water Environment ◽  
Pollution Index ◽  
Advanced Oxidation ◽  
Polluted Water ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology

Potassium permanganate process is an advanced oxidation technique that can provide a resolution removing organic matter in contaminated water. In this paper, the combination of composite potassium permanganate and a certain coagulant used in this process, which it was particularly suited to rapidly oxidize and degrade pollutants. It was an effective enhanced coagulation, advanced oxidation technique that could be conducted in a normal micro-polluted water environment. A series of experiment results demonstrated that the best adding quantity of composite potassium permanganate was 1.5-3.0mg/l, the best adding quantity of PFS as the coagulant was 25mg/l. Under the above conditions, potassium permanganate oxidation obviously reduced to each pollution index and greatly improved the water quality of purification of micro-polluted water. Furthermore, the organic removal rate with composite potassium permanganate was more than the unitary potassium permanganate process and the current traditional process.

EDTA destruction using the solar ferrioxalate advanced oxidation technology (AOT)

2002 ◽  
Vol 151 (1-3) ◽  
pp. 121-127 ◽  
Author(s):  
Carina A. Emilio ◽  
Wilson F. Jardim ◽  
Marta I. Litter ◽  
Héctor D. Mansilla
Keyword(s):  
Advanced Oxidation ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology

scholarly journals Application of advanced oxidation technology in the decontamination of wastewater from banana packing in Tumbes

Manglar ◽  
2018 ◽  
Vol 15 (2) ◽  
pp. 127-134
Author(s):  
John Rimaycuna ◽  
Jorge Alemán ◽  
Percy Neyra ◽  
Dorian Aguirre ◽  
Jose Solis ◽  
...  
Keyword(s):  
Advanced Oxidation ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology

scholarly journals Detoxification of Arsenic-Containing Copper Smelting Dust by Electrochemical Advanced Oxidation Technology

Minerals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1311
Author(s):  
Meng Li ◽  
Junfan Yuan ◽  
Bingbing Liu ◽  
Hao Du ◽  
David Dreisinger ◽  
...  
Keyword(s):  
Solid Waste ◽  
Arsenic Removal ◽  
Removal Rate ◽  
Advanced Oxidation ◽  
Copper Smelting ◽  
Lead And Zinc ◽  
Heavy Nonferrous Metals ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology ◽  
Smelting Dust

A large amount of arsenic-containing solid waste is produced in the metallurgical process of heavy nonferrous metals (copper, lead, and zinc). The landfill disposal of these arsenic-containing solid waste will cause serious environmental problems and endanger people’s health. An electrochemical advanced oxidation experiment was carried out with the cathode modified by adding carbon black and polytetrafluoroethylene (PTFE) emulsion. The removal rate of arsenic using advanced electrochemical oxidation with the modified cathode in 75 g/L NaOH at 25 °C for 90 min reached 98.4%, which was significantly higher than 80.69% of the alkaline leaching arsenic removal process. The use of electrochemical advanced oxidation technology can efficiently deal with the problem of arsenic-containing toxic solid waste, considered as a cleaner and efficient method.

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