Photo-Fenton process for removal of polycyclic aromatic hydrocarbons from hazardous waste landfill leachate

Singa, Pradeep Kumar; Isa, Mohamed Hasnain; Lim, Jun-Wei; Ho, Yeek‐Chia; Krishnan, S.

doi:10.1007/s13762-020-03010-6

Cited by 17 publications

(3 citation statements)

References 43 publications

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“…[53] While utilising less energy (3.10 KWhr/m 3 ), the hybrid photo-electro-Fenton process provided superior colour and COD removal efficiency of around 100% and 97%, respectively, than the photo and electro-Fenton methods alone [54]. Similar to this, a study using the Photo-Fenton method revealed that the procedure produced the best removal efficiency for COD and total PAHs, 84.43% and 92.54%, respectively, under an acidic pH of 6.5 [55] . The COD and NH 3 -N from the MSW leachate are treated using advanced oxidation processes (AOP) like ozonation, the peroxone process, and photolytic ozonation.…”

Section: Advanced Oxidation Process (Aop)supporting

confidence: 65%

Landfill Leachate: Review of various treatment approaches

Lokesh Sapkota,

Rajendra Joshi,

Anish Ghimire

et al. 2023

Jnl Innov. Engin. Educ.

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The burning issue of Solid waste management has become more prevalent in municipals of emerging nations as a combined effort of population growth, economic expansion, and rising living standards. In Nepal, 48.6% of municipalities choose to pile rubbish in landfills, while the remaining municipalities choose to burn their waste or pile it up along rivers. Leachate, a hazardous pollutant that harms soil, ground and surface water, human health, hygiene, and aquatic life, is a liquid produced from the bottom of solid waste disposal facilities.Leachate is treated via three processes: physical, chemical, and biological in landfills. The goal of the current paper is to review the leachate treatment options currently on the market. Instead of adopting a single treatment procedure, with physical and chemical process in combination of biological treatment has shown the effective performance. The onsite leachate solution is given an appropriate low cost option via land treatment of the landfill leachate. Cover soil can be thought of as a primary component of landfill operating strategy for separating trash from the environment and employed as a medium for the reduction of organic loads and specific toxic metals in leachate. This paper will be helpful in examining the many alternatives for treating landfill leachate.

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Section: Advanced Oxidation Process (Aop)supporting

confidence: 65%

Landfill Leachate: Review of various treatment approaches

Lokesh Sapkota,

Rajendra Joshi,

Anish Ghimire

et al. 2023

Jnl Innov. Engin. Educ.

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“…As outlined beforehand, toxic organic pollutants are widespread in the environment, thus, it is highly recommended to eliminate or reduce the concentration of such pollutants in the aquatic environment to safe levels [53,[80][81][82][83]. Numerous conventional treatment processes have been applied and tested for wastewater treatment, such as adsorption, coagulation, precipitation, biodegradation, ozonation, electrochemical oxidation, and advanced oxidation processes [43,47,[83][84][85][86][87][88]. Besides that, combining some of these processes, such as the biological-physical, or chemical processes, has been successfully applied in many wastewater treatment plants [89][90][91][92].…”

Section: Methods Of Treatmentmentioning

confidence: 99%

TiO2 Photocatalysis for the Transformation of Aromatic Water Pollutants into Fuels

et al. 2021

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The growing world energy consumption, with reliance on conventional energy sources and the associated environmental pollution, are considered the most serious threats faced by mankind. Heterogeneous photocatalysis has become one of the most frequently investigated technologies, due to its dual functionality, i.e., environmental remediation and converting solar energy into chemical energy, especially molecular hydrogen. H2 burns cleanly and has the highest gravimetric gross calorific value among all fuels. However, the use of a suitable electron donor, in what so-called “photocatalytic reforming”, is required to achieve acceptable efficiency. This oxidation half-reaction can be exploited to oxidize the dissolved organic pollutants, thus, simultaneously improving the water quality. Such pollutants would replace other potentially costly electron donors, achieving the dual-functionality purpose. Since the aromatic compounds are widely spread in the environment, they are considered attractive targets to apply this technology. In this review, different aspects are highlighted, including the employing of different polymorphs of pristine titanium dioxide as photocatalysts in the photocatalytic processes, also improving the photocatalytic activity of TiO2 by loading different types of metal co-catalysts, especially platinum nanoparticles, and comparing the effect of various loading methods of such metal co-catalysts. Finally, the photocatalytic reforming of aromatic compounds employing TiO2-based semiconductors is presented.

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“…Fenton's reagent removes or degrades a wide variety of contaminants in an aqueous solution either alone or in combination with other processes. Fenton process was successfully used in textile (Arslan-Alaton et al, 2007;Liu et al, 2007;Nadeem et al, 2020), pharmaceutical (Martıńez et al, 2003;Molina et al, 2020), dyeing (Gulkaya et al, 2006;Wang, 2008;Salgado et al, 2020), olive oil mills (Rivas et al, 2001;Beltrań-Heredia et al, 2001;RuÃz-Delgado et al, 2020), oil (Sivagami et al, 2019;Gamaralalage et al, 2019), and cosmetics industries (Bautista et al, 2007;De Andrade et al, 2020), as well as in the reduction of polynuclear aromatic hydrocarbons (Beltrań et al, 1998;Singa et al, 2021), the treatment of brines (Rivas et al, 2003), the degradation of phenol and bisphenols (Carriazo et al, 2005;Zulfiqar et al, 2021), the treatment of effluent from herbicides and pesticides production industry (Sangami and Manu, 2017;Zhao and Zhang, 2021), the treatment of landfill leachates (Tejera et al, 2021;Filho et al, 2021), the degradation of recalcitrant oil spill components anthracene and pyrene (Sekar and DiChristina, 2017;RuÃz-Delgado et al, 2020), the inactivation of Escherichia coli K12 (Rivas et al, 2001), the treatment of recalcitrant industrial wastewater (Cai et al, 2021), and the treatment of high-molecular-weight melanoidin molecules (Raji et al, 2021). More details about Fenton technology for the treatment of recalcitrant organic molecules in several industries can be checked out in our recently published book chapter (Hamd and Dutta, 2020).…”

Section: Application Of Aops For Degradation Of Microplasticsmentioning

confidence: 99%

Recent Advances in Photocatalytic Removal of Microplastics: Mechanisms, Kinetic Degradation, and Reactor Design

Hamd

Daher

Tofa³

et al. 2022

Front. Mar. Sci.

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Plastic products are used in almost all aspects of our daily life. Due to their low cost, portability, durability, and resistance to degradation, these products are affecting the health of the environment and biota on a global scale. Thus, the removal and mineralization of microplastics is an important challenge in the 21st century. Advanced oxidation processes (AOPs) have recently been identified as a viable treatment technique for tackling recalcitrant organic molecules and polymers. However, information on kinetic degradation mechanisms and photocatalytic reactor design is insufficient. This review discusses the fundamentals of photocatalysis and photo-Fenton processes in addition to the photocatalytic degradation mechanisms. We also introduce different characterization techniques of the major microplastic pollutants such as PE, PP, PVC, PS, PMMA, and PA66. In addition, a detailed overview of the major existing photocatalytic plants and the scaling-up methods of photoreactors are discussed.

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Photo-Fenton process for removal of polycyclic aromatic hydrocarbons from hazardous waste landfill leachate

Cited by 17 publications

References 43 publications

Landfill Leachate: Review of various treatment approaches

Landfill Leachate: Review of various treatment approaches

TiO2 Photocatalysis for the Transformation of Aromatic Water Pollutants into Fuels

Recent Advances in Photocatalytic Removal of Microplastics: Mechanisms, Kinetic Degradation, and Reactor Design

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