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Berkant Kayan

Bio: Berkant Kayan is an academic researcher from Aksaray University. The author has contributed to research in topics: Solubility & Catalysis. The author has an hindex of 17, co-authored 51 publications receiving 1011 citations. Previous affiliations of Berkant Kayan include East Carolina University & Mersin University.


Papers
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TL;DR: The results of repeated applications of TiO2-BC in the sonocatalytic process verified its stability in long-term usage and could be explained by the mechanisms of hot spots and sonoluminescence.

130 citations

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TL;DR: The most efficient method for mineralization of RB4 was WPO, but in all methods TOC removal efficiency was above 75% after 60 min of treatment.

121 citations

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TL;DR: In this article, the degradation of azo dye solution of AR 274 by wet air oxidation conditions was investigated, and the central composite design matrix and response surface methodology were applied in designing the experiments to evaluate the interactive effects of the three most important operating variables.
Abstract: Background The present study is aimed at investigating the degradation of azo dye solution of AR 274 by wet air oxidation conditions. The central composite design matrix and response surface methodology were applied in designing the experiments to evaluate the interactive effects of the three most important operating variables. Thus, the interactive effects of oxygen pressure (3.0 to 5.0 MPa), temperature (100°C to 250°C), and time (30 to 90 min) on the degradation of dye were investigated.

105 citations

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TL;DR: The Fe3O4-loaded coffee waste hydrochar, synthesized using a simple precipitation method, exhibited good stability in the repeated adsorption-desorption cycles and was used for removal of Acid Red 17 (AR17) through ultrasound-assisted process.

97 citations

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TL;DR: The results showed that electro-Fenton process can lead to 70 and 95% mineralization of the dye solution after 3 and 5h giving carboxylic acids and inorganic ions as final end-products before mineralization.

91 citations


Cited by
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TL;DR: In this paper, a review of the electrochemical methods used at lab and pilot plant scale to decontaminate synthetic and real effluents containing dyes, considering the period from 2009 to 2013, as an update of our previous review up to 2008.
Abstract: As the environment preservation gradually becomes a matter of major social concern and more strict legislation is being imposed on effluent discharge, more effective processes are required to deal with non-readily biodegradable and toxic pollutants. Synthetic organic dyes in industrial effluents cannot be destroyed in conventional wastewater treatment and consequently, an urgent challenge is the development of new environmentally benign technologies able to mineralize completely these non-biodegradable compounds. This review aims to increase the knowledge on the electrochemical methods used at lab and pilot plant scale to decontaminate synthetic and real effluents containing dyes, considering the period from 2009 to 2013, as an update of our previous review up to 2008. Fundamentals and main applications of electrochemical advanced oxidation processes and the other electrochemical approaches are described. Typical methods such as electrocoagulation, electrochemical reduction, electrochemical oxidation and indirect electro-oxidation with active chlorine species are discussed. Recent advances on electrocatalysis related to the nature of anode material to generate strong heterogeneous OH as mediated oxidant of dyes in electrochemical oxidation are extensively examined. The fast destruction of dyestuffs mediated with electrogenerated active chlorine is analyzed. Electro-Fenton and photo-assisted electrochemical methods like photoelectrocatalysis and photoelectro-Fenton, which destroy dyes by heterogeneous OH and/or homogeneous OH produced in the solution bulk, are described. Current advantages of the exposition of effluents to sunlight in the emerging photo-assisted procedures of solar photoelectrocatalysis and solar photoelectro-Fenton are detailed. The characteristics of novel combined methods involving photocatalysis, adsorption, nanofiltration, microwaves and ultrasounds among others and the use of microbial fuel cells are finally discussed.

3,112 citations

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TL;DR: In this article, an exhaustive review on the treatment of various synthetic and real wastewaters by five key EAOPs, i.e., anodic oxidation (AO), anodic oxidation with electrogenerated H 2 O 2, electro-Fenton (EF), photoelectro-fenton (PEF), alone and in combination with other methods like biological treatment, electrocoagulation, coagulation and membrane filtration processes.
Abstract: Over the last decades, research efforts have been made at developing more effective technologies for the remediation of waters containing persistent organic pollutants. Among the various technologies, the so-called electrochemical advanced oxidation processes (EAOPs) have caused increasing interest. These technologies are based on the electrochemical generation of strong oxidants such as hydroxyl radicals ( OH). Here, we present an exhaustive review on the treatment of various synthetic and real wastewaters by five key EAOPs, i.e., anodic oxidation (AO), anodic oxidation with electrogenerated H 2 O 2 (AO-H 2 O 2 ), electro-Fenton (EF), photoelectro-Fenton (PEF) and solar photoelectro-Fenton (SPEF), alone and in combination with other methods like biological treatment, electrocoagulation, coagulation and membrane filtration processes. Fundamentals of each EAOP are also given.

1,457 citations

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TL;DR: In this paper, a review of the preparation, characterization, modification, and especially environmental application of biochar, based on more than 200 papers published in recent 10 year, to provide an overview of Biochar with a particular on its environmental application.

1,017 citations

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TL;DR: In this paper, the authors reviewed the fundamentals and recent developments in electro-fenton process and evaluated the effects of various operating parameters and their optimum ranges for maximum pollutant removal and mineralization.

804 citations

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TL;DR: The recent trends in the field of various Electrochemical Advanced Oxidation Processes (EAOPs) used for removing dyes from water medium are provided to indicate that EAOPs constitute a promising technology for the treatment of the dye contaminated effluents.

756 citations