bluuebunny/crossref_metadata_2025_split huggingface dataset:
Photodegradation of VOCs and Bad Smells in a TiO2 Coated Honeycomb Monolith Reactor
Authors: Son Geon Seog , Yun Seung Won , Ko Seong Hyuk , Song Jae Won , Lee Kwi Young 
Published: November 2016

AbstractPhotocatalyst has long been studied and used as a promising agent for reduction of air pollution, as it carries such useful characteristics as self-cleaning and powerful oxidation, and it leaves non-toxic by-products. Photocatalysis is a surface reaction and is initiated by absorbing light in the UV wavelength range, therefore the system efficiency is strongly dependent upon surface area and UV intensity. Until recently application of photocatalyst has been limited to low air flow rate with low concentration of pollutants since it has been very difficult for a compact system to provide the large surface area as well as the strong UV intensity. In this study, a very compact and innovative system with a honeycomb monolith substrate coated with photocatalyst and non- thermal plasma as an UV light generation source is suggested to obtain larger specific surface area and stronger UV intensity to effectively enhance the efficiency of photocatalysis. Using this system, parametric study has been made to determine the functional dependency of UV intensity and electric power consumption on such factors as supplied voltages, substrate lengths, air flow conditions and photocatalyst loading ratios.
Treatment of Liquid Waste Containing Ethylenediamine Tetraaceticaxid by Advanced Oxidation Processes
Authors: Chitra S. , Paramasivan K. , Sinha P. K. , Lai K. B. 
Published: November 2016

AbstractEthylenediaminetetraacetic acid (EDTA) is a chelating agent that has been used for decontamination purposes in nuclear industry. The presence of EDTA in decontamination wastes can cause complexation of the cations resulting into interferences in their removal by various treatment processes such as chemical pre­cipitation, ion exchange etc. Further, it might also impart elevated leachability and higher mobility of cationic contaminants from the conditioned wastes i.e. waste immobilized in cement or other matrices and can negatively influence the quality of the final form of waste. Advanced Oxidation Processes (AOP) using ozone, H
High Temperature Pulsed Corona Processing of Fuel Gas
Authors: Pemen A. J. M. , Nair S. A. , Yan K. , Heesch E. J. M. van , Ptasinski K. J. , Drinkenburg A. A. H. 
Published: November 2016

AbstractTo utilize fuel gas obtained from biomass gasification for the production of energy or chemicals, it is necessary to clean the fuel gas. Especially heavy aromatic hydrocarbons (“tars”) must be removed. This paper gives an overview of our work on tar removal from fuel gas by means of pulsed corona discharges. A setup for pulsed corona processing at fuel gas temperatures up to 850 °C will be described. Experiments were done at gas temperatures up to 400 °C. Effects of the gas temperature on the energization of a corona reactor and on tar removal will be discussed.
Dilute Trichloroethylene Decomposition in Air by the Non-Thermal Plasma Process Combined with the Manganese Oxide
Authors: Oda Tetsuji , Han SangBo , Ono Ryo 
Published: November 2016

AbstractThe non-thermal plasma is a very effective technique to decompose various kinds of gaseous organic compounds. The trichloroethylene (TCE) is one of the effective washing reagents to remove oily liquid materials or similar fatty materials from the solid surface but is harmful for human beings as the carcinogenic materials. The authors have been engaged in developing the non-thermal plasma technology to decompose that TCE efficiently. During the research on how to improve the decomposition efficiency of TCE, we found that the ozone generated in the air by the plasma can decompose TCE which is named as Indirect Process, comparing with the conventional plasma process named as Direct Process. We found that manganese oxide catalyst which can easily decompose the ozone and may generate oxygen radicals. The manganese oxide can improve the TCE decomposition efficiency, 20 or 80%, for Direct or Indirect Processes.
Evaluation of Four Kinds of Nonthermal Plasma Reactor for Abatement of Perfluorocompounds
Authors: Lee How Ming , Chang Moo Been , Chen Chih Wei 
Published: November 2016

AbstractPerfluorocompounds (PFCs) are widely used in the semiconductor manufacturing industry as etching gases and chamber cleaning gases. However, PFCs intensely absorb infrared radiation and aggravates global warming consequently. This study applies nonthermal plasma technologies to destroy PFCs including CF
Magnetic Energy Recovery Type Marx-Generator for High Repetition Plasma Discharge
Authors: Isobe Takanori , Takaku Taku , Narushima Jim , Tsuji-Iio Shunji , Shimada Ryuichi 
Published: November 2016

AbstractIn this paper, a power supply which can generate pulsed high voltage with high repetition rate is proposed. It can generate pulsed high voltage up to several kilovolts even from several volts dc. This circuit is the Marx-generator which consists of multi-staged magnetic energy recovering switches. A magnetic energy recovering switch is made of four IGBTs and one capacitor. Two IGBTs in reverse-series are connected in anti-parallel. Their terminals are connected to the capacitor. It generates high voltage by absorbing the magnetic energy of an inductor to the capacitor. In order to generate high voltage, this Marx-generator utilizes the inductor. While all the switches are turned on, current flows through the switches and the inductor. When the switches are turned off, the magnetic energy which stored in the inductor is charged in the capacitors in parallel. Next, by turning on the switches, the capacitors discharge in series and high voltage is applied to the inductor. Experiments were carried out. A pulsed voltage of 1.5 kV with a repetition rate of 5 kHz was generated from 36 V dc. It was confirmed that this circuit can be applied to a power supply for high repetition plasma discharge.
Hydrogen Peroxide Formation by Discharges in Argon/Water Vapor Mixtures at Atmospheric Pressure
Authors: Dodet B. , Odic E. , Goldman A. , Goldman M. , Renard D. 
Published: November 2016

AbstractHydrogen peroxide production was studied in an atmospheric pressure dielectric barrier discharge device. The discharge atmosphere was an argon/oxygen gas mixture of variable ratio with water vapor adjunction; H
Enhancement of Propane Flame Stability by Dielectric Barrier Discharges
Authors: Kim Yongho , Stange Sy M. , Rosocha Louis A. , Ferreri Vincent W. 
Published: November 2016

AbstractNon-thermal plasmas have recently found novel applications in improving fuel combustion. Typical electron temperatures in such plasmas are of order a few electron volts. Such electrons are sufficient to break down fuel molecules and to produce free radicals which may significantly affect combustion efficiency. In this work, we use a dielectric barrier discharge (DBD) to activate propane (C3H8) fuel before it is mixed with air and ignited. The use of activated propane enables us to operate combustion in very lean-burn conditions; for 0.2 lpm propane, air flow was 38 lpm, compared with an air flow of 26 lpm in the absence of a plasma. A residual gas analyzer (RGA) measures the decomposition products of the propane discharge, indicating that atomic and molecular hydrogen are produced in the plasma and that their concentrations depend on the DBD energy density. Based on the observations discussed in this work, we have shown that by activating propane, the DBD increases combustion stability.
After-Treatment of NOx Using Combination of Non-Thermal Plasma and Oxidative Catalyst Prepared by Novel Impregnation
Authors: Matsui Y. , Sawada J. , Koyamoto I. , Takashima K. , Katsura S. , Mizuno A. 
Published: November 2016

AbstractNOx removal process based on the combination of pulsed discharge plasma and catalyst was investigated in this study. Five types of catalyst pellets (γAl
Decolouration of Dye Solutions Using Photoelectrocatalysis and Photocatalysis
Authors: Egerton Terry A , Purnama Herry , Purwajanti Swasmi , Zafar Muhammad 
Published: November 2016

AbstractThis paper compares the photocatalytic and photoelectrocatalytic decolouration of dilute solutions of two dyes, one, methylene blue, cationic and one, reactive orange, anionic. For both methylene blue and reactive orange there is evidence that, as in photocatalytic decolouration, the initial stage in photoelectrocatalytic degradation is the destruction of the chromophore responsible for absorption in the visible region of the spectrum. For both dyes, both photoelectrocatalysis and photocatalysis were more efficient at pH > 9 than at pH 4. For the cationic dye, methylene blue, photoelectrocatalytic degradation was slower than photocatalytic degradation - indeed even though photocatalytic decolouration of 0.2 mM methylene blue solutions could be achieved photoelectrocatalytic degradation was negligible under the conditions used by us. However, photoelectrocatalytic decolouration of 0.1 mM methylene blue solution was achieved. The reduced efficiency of photoelectrocatalysis probably occurs because adsorption of the dye molecules on the TiO
Electrochemical Treatment of Trace Endocrine Disrupting Chemicals with a Three-Dimensional Electrode System
Authors: Nagata Ryuta , Prosnansky Michal , Sakakibara Yutaka 
Published: November 2016

AbstractThe wide pollution of Endocrine Disrupting Chemicals (EDCs) in the aquatic environment is of great concern to aquatic organisms and human health. Previous researches indicated that the main sources of the EDCs were sewage treatment plants (STPs). In this paper, we reported treatment results of synthetic wastewater containing several EDCs by a three-dimensional electrode system. Pt/Ti granular electrodes were used to enlarge the effective surface area of the anode. Concentrations of EDCs were prepared in the range of 1-1000 μg/l. In batch and continuous treatments, EDCs were successfully removed by the present system. Electric current and recycling flow rate played important roles for removal efficiency and reactor design. Energy consumptions were in the range of 0.1-10 Wh/m
Phenol Oxidation in Aqueous Solution by Gas Phase Corona Discharge
Authors: Dors Mirosław , Mizeraczyk Jerzy , Mok Y. S. 
Published: November 2016

AbstractIn this paper, results of phenol degradation in water induced by a DC corona discharge run in air-like gas mixture above the water surface are presented. The DC positive corona discharge was generated between a stressed hollow needle and the water surface. Air with 1.5% CO
A New Type of Reactor with a Combination of Surface Discharge and Advanced Oxidation Process in Air and its Applications
Authors: Shimosaki Mitsuaki , Yamabe Chobei 
Published: November 2016

AbstractA new type of reactor which is operated with a combination of surface discharge and UV radiation emitted by a lamp discharge is studied for both its fundamental characteristics and the treatment of volatile organic compounds (VOCs). The surface discharge occurs along the wire electrode which surrounds on the outer tube of reactor and generates ozone from the air. It seems that the UV emission has an effect on the initiation and uniformity of the surface discharge. The toluene treatment in oxygen or air and argon mixture gas was carried out and the decomposition of almost 100% was established at the applied voltage of 4 kV (peak to peak). The toluene in oxygen was converted into CO
Adsorption and Photodegradation of Humic Acids by Nano-Structured TiO2 for Water Treatment
Authors: Lee P. F. , Sun D. D. , Leckie J. O. 
Published: November 2016

AbstractRemoval of natural organic matter (NOM) is always a concern in water treatment, particularly the formation of chlorinated organic compounds such as trihalomethane (THM) - toxic by-products resulting from the chlorination and disinfection of residual organic compound. TiO
Glycerol Transformation Through Photocatalysis: A Possible Route to Value Added Chemicals
Authors: Maurino Valter , Bedini Andrea , Minella Marco , Rubertelli Francesca , Pelizzetti Ezio , Minero Claudio 
Published: November 2016

AbstractThe photocatalytic process is a possible way for obtaining value-added chemicals from glycerol (Gly). The kinetic and mechanism of transformation of glycerol are explored as a function of several operating parameters (type of the catalyst, pH, substrate concentration, fluorination of the catalyst surface). Different transformation rates are observed for glycerol on pristine P25 and Merck powders. By use of Degussa P25, the phototransformation rate shows a sharp maximum at low glycerol concentration, thus deviating from Langmuir-Hinshelwood behavior. These results are qualitatively rationalized with a kinetic model that includes substrate mediated carrier recombination (back reaction) and invokes two reactive sites on P25 TiO
Super-Hydrophilic and Photocatalytic Properties of Ag-TiO2 Thin Films Prepared by Sol–Gel Technique
Authors: Patil Suhas R. , Štangar Urška Lavrenčič , Gross Silvia , Schubert Ulrich 
Published: November 2016

AbstractA comparative study of photocatalytic degradation of methyl orange (liquid-solid interface) and methyl stearate (solid-solid interface) was performed with three different kinds of transparent pure and Ag-doped TiO
Photochemical Reactivity of Iron(III)-Doped Ruthenium(II)-tris- Bipyridine/Titanium Dioxide Zeolite Y Photocatalysts at High Substrate Concentrations
Authors: Pokhrel Megh Raj , Janik Katharine , Bossmann Stefan H. 
Published: November 2016

AbstractRuthenium(II)-tris-bipyridine/titanium dioxide codoped zeolite Y (Ru(bpy)
Oxidation of Higher Alkanes at Moderate Reaction Conditions with Ozone in Presence of Mesoporous Materials
Authors: Pullabhotla V. S. R. Rajasekhar , Jonnalagadda S. B. 
Published: November 2016

AbstractThe scope of mesoporous molecular sieves, Al-MCM-41, as catalysts in the ozone initiated fuctionalisation of higher n-alkanes at 20 ± 1 °C and ~1 atm conditions is investigated. Oxygen is introduced into carbonaceous site in the product molecule forming 2-, 3- and 4- keto- isomers as main products and carboxylic acids as minor products. The % conversion, reaction products and selectivity for the catalysed reactions are compared. In presence of catalysts, the relative selectivity towards 4-ketone is increased.
Enhancement of the Photodegradation of Methylene Blue by Combined Titania Photocatalyst and Photo-Fenton
Authors: Bouras Panagiotis , Lianos Panagiotis , Dionysiou Dionysios D. 
Published: November 2016

AbstractThe decolorization of Methylene Blue has been studied in aqueous solutions in the presence of Titania nanocrystalline films alone or with added Fe
Application of Response Surface Methodology to Optimise C.I. Acid Orange 7 Azo Dye Mineralization by UV/H2O2 Process
Authors: Olya Mohammad E. , Kasiri Masoud B. , Aleboyeh Hamid , Aleboyeh Azam 
Published: November 2016

AbstractThe mineralization of C.I. Acid Orange 7 (AO7) azo dye by UV/H2O2 Advanced Oxidation Process was studied in a flux through annular photoreactor. An experimental design based on Response Surface Methodology (RSM) was applied to evaluate the simple and combined effects of influencing independent parameters on mineralization efficiency and optimising the operating conditions of the treatment process. A 2
Electro-Fenton Treatment of TNT in Aqueous Media in Presence of Cyclodextrin. Application to Ex-situ Treatment of Contaminated Soil
Authors: Murati Minir , Oturan Nihal , Hullebusch Eric D. van , Oturan Mehmet A. 
Published: November 2016

AbstractThis preliminary study aims to examine, at laboratory scale, the mechanisms and performances provided by coupling the enhanced solubility abilities of cyclodextrin solutions for removal of 2,4,6-Trinitrotoluene (TNT) from contaminated soil with advanced oxidation processes (AOPs) that are regarded as the most effective approaches in treatment of wastewater contaminated with persistent and toxic organic pollutants. In recent years, different Fenton technologies have turned out to be quite appealing to eliminate recalcitrant organic pollutants. Among the different Fenton-like technologies currently available, indirect electrochemical treatment, namely electro-Fenton process, has appeared to be quite efficient in eliminating refractory organic compounds from aqueous media. HPLC/DAD was employed to monitor the TNT degradation and to identify the aromatic intermediates formed during the electro-Fenton oxidation of TNT. Absolute rate constant of TNT hydroxylation by hydroxyl radicals was determined as 2.06 × 10
Reactivity of Peroxyl Radicals towards Hydrogen Donors: A Kinetic ESR Investigation
Authors: Criqui A. , Lalevée J. , Allonas X. , Fouassier J. P. 
Published: November 2016

AbstractPeroxyl radicals are usually assumed as key intermediates in oxidation or autoxidation processes rendering important a better understanding of their associated reactivity. Kinetic ESR is proposed here as an efficient technique for the determination of their reaction rate constants. The interactions between peroxyl radicals and a large variety of hydrogen donors Y-H are reported. The role of the Y-H bond dissociation energy is outlined.
Hydrothermal Preparation and Photocatalytic Performance of (I2)n Sensitized and I(V) Doped TiO2 Supported on SiO2
Authors: Deng Peichang , Wang Haizeng , Sun Baowei , Fan Lixia , Li Ling 
Published: November 2016

AbstractA mild hydrothermal route for preparing highly photocatalytic activity (I
Integrated Strategy for Treatment of Winery Wastewaters Using Flocculation, Ozonation and Fenton’s Oxidation
Authors: Martins Rui C. , Abegão Fernando J.R. , Silva Adrián M.T. , Quinta-Ferreira Rosa M. 
Published: November 2016

AbstractThe present research is based on a case-study involving the development of an adequate treatment for agro-effluents originating from wineries. Flocculation, Fenton’s oxidation and ozonation processes were investigated in order to define the best integration strategy that may conduce to optimal efficiency of degradation and operational cost. Chemical oxygen demand (COD), total suspended solids (TSS), and total organic carbon (TOC) were some of the parameters used to analyze the performance of these technologies. The higher COD and TSS removals (73% and 94% respectively) were achieved combining the ozonation treatment with the Fenton process. In addition, the respective cost of COD reduction is lower in this case, when compared with other alternatives. Flocculation revealed not to be needed since in the ozonation process the suspended solids are able to be degraded.
H2O2/UV-C Treatment of the Economically Important Naphthalene Sulfonate J-Acid: Process Optimization, Kinetic Evaluation and Activated Sludge Inhibition
Authors: Arslan-Alaton Idil , Olmez-Hanci Tuğba , Kartal Zeynep 
Published: November 2016

AbstractJ-acid (2-amino-5-naphthol-7-sulfonic acid) is an economically important naphthalene sulfonate having a highly polar, aromatic structure that renders it a difficult-to-oxidize, coagulate or adsorb pollutant. In the present study, the treatability of aqueous J-acid employing H2O2/UV-C oxidation and the effect of H
Comparison of Photocatalytic Activities of Commercial Titanium Dioxide Powders Immobilised on Glass Substrates
Authors: Dunlop Patrick S. M. , Galdi Americo , McMurray Trudy A. , Hamilton Jeremy W. J. , Rizzo Luigi , Byrne J. Anthony 
Published: November 2016

AbstractSemiconductor photocatalysis is an advanced oxidation technology reported to be effective for the degradation of a wide range of organic pollutants found in water. Titanium dioxide is the most suitable photocatalyst for water treatment as it is insoluble under normal pH conditions, is photoactive, photostable, readily available and inexpensive. In this work Millennium Chemicals PC500, PC105, PC100, PC50, PC10 and Evonik Degussa P25 powders were immobilised onto borosilicate glass, via dip-coating and spray coating, producing thick films ranging from 0.2 to 1.4 mg catalyst per square cm of glass substrate. The photocatalytic activity of the immobilised films was compared under back-face UVA irradiation in a stirred-tank reactor using formic acid and phenol as model pollutants. Based upon the rate constant derived from the removal of the parent compound, and using the optimum catalyst loading determined under the experimental conditions employed, the order of photocatalytic activity for the degradation of formic acid was found to be P25 > PC100 > PC50 > PC105 ≥ PC500 > PC10, while for phenol degradation the order was P25 > PC50 > PC105 > PC100 ≥ PC500 > PC10.
The Role of Oxidative Treatment on the Trivalent Cation Complexation Properties of Natural Organic Matter
Authors: Kavurmaci Sibel Sen , Bekbolet Miray 
Published: November 2016

AbstractHumic acids (HA) which constitute the major subgroup of natural organic matter (NOM) are mainly composed of heterogeneous and polydisperse macromolecules. Considering the reactivities of the humic moieties towards the common coagulants during physico-chemical treatment of drinking water, different pre-oxidation conditions could exhibit various changes in humic acid structure leading to diverse reactivities towards the trivalent cations. The aim of this study was to evaluate the effects of the oxidative pre-treatment schemes applied by ozonation, TiO
Combined Biological and Chemical Treatment of Anaerobically Digested Distillery Wastewater
Authors: Vasudevan Namasivayam , Kanimozhi Ramalingam 
Published: November 2016

AbstractThe present study investigates the treatment of anaerobically digested distillery wastewater (ANDDW) with biological treatment followed by ozonation process. The aerobic biological system (SBR) used in this study was able to treat the distillery wastewater (ANDDW) containing high COD to the extent of 73% and BOD to the extent of 98%, respectively at an optimized OLR of 3.6 kgCOD/m
Distillery Wastewater Treated by Electrochemical Oxidation with Boron-Doped Diamond Electrodes
Authors: Alvarez-Pugliese Christian E. , Moreno-Wiedman Paola , Machuca-Martínez Fiderman , Marriaga-Cabrales Nilson 
Published: November 2016

AbstractElectrochemical oxidation of pretreated distillery wastewater was performed using a boron doped diamond anode (BDD). The role of direct oxidation of organic matter was assessed with experiments of linear sweep voltammetry, noting that the deactivation of the electrode surface occurs in the region of potentials below oxygen evolution. Then, galvanostatic bulk electrolyses were conducted during 4 hours at current densities (20 mAcm
Maleic Acid Oxidation Using A Heterogeneous Modified Polyacrylonitrile (PAN) Fibrous Catalyst
Authors: Chi George T. , Huddersman Katherine D. 
Published: November 2016

AbstractThe effectiveness, kinetics and mechanism of oxidation of maleic acid in solution using a novel modified polyacrylonitrile (PAN) catalyst/hydrogen peroxide system was studied. The modified PAN catalyst contains immobilised Fe
Application of Fenton and Solar Photo-Fenton Processes to the Treatment of a Sanitary Landfill Leachate in a Pilot Plant with CPCs
Authors: Vilar Vítor J. P. , Moreira José M. S. , Fonseca Amélia , Saraiva Isabel , Boaventura Rui A. R. 
Published: November 2016

AbstractThis paper reports on landfill leachate treatment by Fenton (Fe
Congo Red Degradation in Anode and Sunlight/derivative Persulfate Composite Oxidation System
Authors: Zhang Naidong , Zhu Zhengjiang , Luan Wanli 
Published: November 2016

AbstractAnodic oxidation and sulphate radical oxidation were combined in the study for degradation of refractory organics. The degradation reaction of organic compounds and persulfate generation reaction occur simultaneously in Pt anodic oxidation system with electrolyte of Na