Journal ArticleDOI
An Integrated Process, Fenton Reaction−Ultrafiltration, for the Treatment of Landfill Leachate: Pilot Plant Operation and Analysis
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In this paper, the treatment of a mature landfill leachate, from a municipal landfill located in northern Spain (Cantabria), by an integrated system [Fenton reaction−neutralization−ultrafiltration (UF)] was carried out in a pilot plant that operated either in batch and continuous mode.Abstract:
The treatment of a mature landfill leachate, from a municipal landfill located in northern Spain (Cantabria), by an integrated system [Fenton reaction−neutralization−ultrafiltration (UF)] was carried out in a pilot plant that operated either in batch and continuous mode. The initial average chemical oxygen demand (COD) concentration of the leachate was 2100 mg/L, with a biological oxygen demand (BOD5)/COD ratio of 0.08. The sequence of stages implemented was (i) Fenton oxidation, (ii) neutralization of Fenton's effluent to pH 7, and (iii) ultrafiltration with submerged membranes. The influence of different parameters, such as redox potential evolution, H2O2/COD mass ratio, and hydraulic retention time, was investigated in the Fenton oxidation process. The effect of neutralization and UF steps was also studied. COD reduction after the integrated treatment was up to 80%. The final effluent was free of solids, color, and iron. The results demonstrated the high potential of Fenton's reagent in combination wit...read more
Citations
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Journal ArticleDOI
Clays and oxide minerals as catalysts and nanocatalysts in Fenton-like reactions — A review
TL;DR: The use of clays and iron-oxide minerals as catalysts of Fenton-like reactions is a promising alternative for the decontamination of soils, groundwaters, sediments, and industrial effluents as discussed by the authors.
Journal ArticleDOI
An overview of the application of Fenton oxidation to industrial wastewaters treatment
TL;DR: A review of the application of the Fenton process as an advanced oxidation method for the treatment of industrial wastewaters can be found in this article, where the efficiency and flexibility of this technology has been proven with a wide diversity of effluents from chemical and other related industries or activities, including pharmaceutical, pulp and paper, textile, food, cork processing and landfilling among others.
Journal ArticleDOI
Critical review of advanced oxidation processes in organic wastewater treatment.
Dengsheng Ma,Huan Yi,Cui Lai,Xigui Liu,Xiuqin Huo,Ziwen An,Ling Li,Yukui Fu,Bisheng Li,Mingming Zhang,Lei Qin,Shiyu Liu,Lu Yang +12 more
TL;DR: The main direction in the future of AOPs are the modification of catalysts and the optimization of operating parameters, with the challenges focusing on industrial applications.
Journal ArticleDOI
Pilot scale performance of the electro-oxidation of landfill leachate at boron-doped diamond anodes.
TL;DR: Two mathematical models, previously applied to the oxidation of synthetic wastewaters in the literature, were able to predict the evolution of chemical oxygen demand and ammonia for low current density values.
Journal ArticleDOI
Advanced treatment of landfill leachate by a new combination process in a full-scale plant
TL;DR: This new combination process was proved to be highly compatible and efficient in a small-scale landfill leachate treatment plant and is recommended for small- scale landfill leachesate treatment plants.
References
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Photochemical processes for water treatment
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Advanced Oxidation Processes for Organic Contaminant Destruction Based on the Fenton Reaction and Related Chemistry
TL;DR: In this paper, the complex mechanisms of Fenton and Fenton-like reactions and the important factors influencing these reactions, from both a fundamental and practical perspective, in applications to water and soil treatment, are discussed.
Journal ArticleDOI
Advanced oxidation processes (AOP) for water purification and recovery
TL;DR: In this article, different advanced oxidation processes (AOPs) are considered and critically presented according to their specific features with reference, whenever possible, to their real applications for water pollution abatement.
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Comparison of different advanced oxidation processes for phenol degradation.
TL;DR: Of the tested processes, Fenton reagent was found to the fastest one for phenol degradation, and lower costs were obtained with ozonation in the ozone combinations, and UV/H2O2 showed the highest degradation rate.
Journal ArticleDOI
Landfill leachate treatment methods: A review
Jarosław Wiszniowski,Didier Robert,Joanna Surmacz-Górska,Korneliusz Miksch,Jean-Victor Weber +4 more
TL;DR: The main processes currently used for the landfill leachates treatments can be classified as biological methods, chemical methods, and physical methods as mentioned in this paper, and they can be divided into three categories: biological, chemical and physical.