Landfill leachate treatment by a combination of a multiple plant hybrid constructed wetland system with a solar photoFenton process in a raceway pond reactor

Spiniello, Ivano; Carluccio, Marco De; Castiglione, Stefano; Amineva, Enzhe; Kostryukova, Natalia; Cicatelli, Angela; Rizzo, Luigi; Guarino, Francesco

doi:10.1016/j.jenvman.2022.117211

Cited by 20 publications

(5 citation statements)

References 49 publications

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“…This increases the concentration of heavy metals in the syngas, making the recovery of methane expensive and challenging. As a result, it's critical to properly separate inorganic waste from biodegradable waste in waste reclamation facilities 44 . Inorganic substances emit more carbon than organic substances, resulting in a higher CO 2 content in waste that contains a higher quantity of inorganic matter.…”

Section: Discussionmentioning

confidence: 99%

Experimental investigation and multi-performance optimization of the leachate recirculation based sustainable landfills using Taguchi approach and an integrated MCDM method

Khan,

Mufazzal,

Sherwani

et al. 2023

Sci Rep

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Landfill leachates contain harmful substances viz. chemicals, heavy metals, and pathogens, that pose a threat to human health and the environment. Unattended leachate can also cause ground water contamination, soil pollution and air pollution. This study focuses on management of leachate, by recirculating the rich, nutrient-filled fluid back into the landfills, turning it to a bioreactor, thereby maximising the performance parameters of landfills favourable for electricity production by the waste to energy plants. This study demonstrates a sustainable alternative method for utilising the fluid, rather than treating it using an extremely expensive treatment process. Further, it also experimentally investigates the effect of varying levels of five input parameters of the landfill including waste particle size, waste addition, inorganic content in waste, leachate recirculation rate, and landfill age, each at five levels, on the multiple performance of the landfill using Taguchi’s L25 standard orthogonal array. Experimental results are analysed using an integrated MCDM approach i.e. MEREC-PIV method and statistical techniques such as analysis of mean (ANOM) and analysis of variance (ANOVA). The results indicate that the optimal setting of the input parameters is waste particle size at 9 ppm, waste addition at 80 Ktoe, inorganic content in waste at 2%, leachate recirculation rate at 250 l/day and landfill age at 3 years. Further, inorganic content waste is found to be the most significant parameter for the multiple performance of the landfill. This study presents a novel approach to produce input parameters for power plants which may enhance their profitability and sustainability.

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Section: Discussionmentioning

confidence: 99%

Experimental investigation and multi-performance optimization of the leachate recirculation based sustainable landfills using Taguchi approach and an integrated MCDM method

Khan,

Mufazzal,

Sherwani

et al. 2023

Sci Rep

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“…The literature shows that CWs can treat different effluents with removal results reaching 90% for the main parameters associated with solids and organic matter, obtaining effluents that meet most of the requirements for the different types of reuse [10][11][12][13][14][15]. However, when a more efficient removal of nutrients (N, P) and pathogens is required, hybrid and combined systems are the most recommended [16][17][18].…”

Section: Constructed Wetlandsmentioning

confidence: 99%

“…However, when a more efficient removal of nutrients (N, P) and pathogens is required, hybrid and combined systems are the most recommended [16][17][18]. In this way, there are also many studies reporting the possibility of associating CWs with advanced oxidative processes for the removal of emergent contaminants [12][13][14], even if many of these harmful substances have not been included in the parameters for effluent reuse yet (Table 1).…”

Section: Constructed Wetlandsmentioning

confidence: 99%

The Use of Constructed Wetlands to Treat Effluents for Water Reuse

de Campos,

Soto

2024

Environments

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Constructed wetland systems (CWs) are technologies based on natural processes for pollutant removal and have been more and more accepted in the treatment of domestic and industrial wastewater. This study selected and reviewed articles published in the last six years involving the use of different CW conceptions and their association with other technologies to treat different effluents and evaluated the quality of the effluents for reuse. From a total of 81 articles reviewed, 41 presented quantitative data on the quality of the treated effluent in relation to the requirements of the reuse regulations in different countries of the world. CWs can be used to treat gray water and runoff water, as well as domestic and industrial effluents with the purpose of reusing them. While studies on the removal of new chemical and biological substances have increased, challenges are associated with the optimization of CWs to improve the removal of pathogens and new contaminants that have appeared more recently. The potential for the improved removal of those pollutants lies in the association of CWs with conventional and advanced technologies in new configurations. We concluded that studies related to the reuse of effluents using CWs are in constant evolution, with experiments at different scales. The perspectives are promising since CWs are an economic, environmentally friendly, and efficient technology to help in the mitigation of water scarcity problems imposed by climate changes.

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“…Biological leachate treatment has the advantage of being costeffective, such as using fungi as a biological method, showing promising results (14). In addition, biological methods categorized as green treatment have significant efficiency removal, such as the use of constructed wetlands and solar Photo-Fenton in leachate treatment which reaches 75%-95% efficiency for organic and inorganic compounds (15).…”

Section: Cite This Asmentioning

confidence: 99%

Potential Sequencing Batch Reactor in Leachate Treatment for Organic and Nitrogen Removal Efficiency

Viareco,

Adriansyah,

Sufra

2023

JKL

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Introduction: Landfill wastewater or leachate has unique characteristics. Several conventional methods need a few treatment tanks to cover the treatment process. A Sequencing Batch Reactor (SBR) is a biological treatment method that uses a single tank with few-cycle phases. This study aims to determine the potential of a Sequencing Batch Reactor (SBR) that can be used to treat landfill leachate. Methods: A Sequencing Batch Reactor (SBR) was used in this study. The characteristics of leachate served as the basis for the design of the SBR reactor. The synthetic leachate was used to create the reactor feed based on the actual landfill leachate compositions. The reactor's influent and effluent were analyzed based on a few parameter changes, such as Suspended Solid (SS), Chemical Oxygen Demand (COD), ammonia nitrogen (NH3-N), and Total Kjeldahl Nitrogen (TKN). Results and Discussion: While the experiment was running, 84% of SS were removed, 88% of COD were removed, a -28% efficiency rate for NH3-N removal, and a -172% efficiency rate for TKN removal. After the withdrawal phase, the supernatant showed promising results with 99% COD removal, 97% SS removal, and 65% TKN removal. Unfortunately, the removal of NH3-N reaches -130%. It indicates insufficient concentrations of MLSS and SRT, as well as the presence of a eutrophication process. Conclusion: SBR shows a promising result for leachate treatment. Few changes in the cycling process were needed for further study, so the treatment process becomes optimal to reach its full potential.

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Landfill leachate treatment by a combination of a multiple plant hybrid constructed wetland system with a solar photoFenton process in a raceway pond reactor

Cited by 20 publications

References 49 publications

Experimental investigation and multi-performance optimization of the leachate recirculation based sustainable landfills using Taguchi approach and an integrated MCDM method

Experimental investigation and multi-performance optimization of the leachate recirculation based sustainable landfills using Taguchi approach and an integrated MCDM method

The Use of Constructed Wetlands to Treat Effluents for Water Reuse

Potential Sequencing Batch Reactor in Leachate Treatment for Organic and Nitrogen Removal Efficiency

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