An Eco-Innovative Solution for Reuse of Leachate Chemical Precipitation Sludge: Application to Sanitary Landfill Coverage

Martínez-Cruz, Alfredo; Fernandes, Annabel; Ramos, Fernando Wagner da Silva; Soares, Sofia F.; Correia, Pedro Miguel Nobre; Baía, Ana; Lopes, Ana; Carvalho, Fátima

doi:10.12912/27197050/133329

Cited by 7 publications

(2 citation statements)

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“…The sludge generated during the operation of the two-stage pre-treatment of leachates can be pumped by a sludge pump into specially prepared cells on the territory of the landfill for final disposal. It is possible also to use the sludge in the mix with natural soil to cover the solid waste at landfill [Martínez-Cruz et al, 2021].…”

Section: Time Minmentioning

confidence: 99%

Integrated Aerobic-Reagent Technology for the Pre-Treatment of Leachates from Municipal Solid Waste Landfills

Malovanyy¹,

Zhuk²,

Boichyshyn³

et al. 2022

Ecol. Eng. Environ. Technol.

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Section: Time Minmentioning

confidence: 99%

Integrated Aerobic-Reagent Technology for the Pre-Treatment of Leachates from Municipal Solid Waste Landfills

Malovanyy¹,

Zhuk²,

Boichyshyn³

et al. 2022

Ecol. Eng. Environ. Technol.

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“…Landfill leachate is defined as a highly contaminated liquid that percolates through waste mass and is infused with dissolved and suspended matters (Ghani et al, 2017). It is well known that the inadequate treatment of leachates, together with poor operation of landfills and the resulting infiltration can lead to health and environmental issues (Martínez-Cruz et al, 2021;Yusoff et al, 2018). Table 1 reviews the classification of landfill leachate according to the composition changes.…”

Section: Introductionmentioning

confidence: 99%

Leachate treatment: comparison of a bio-coagulant (Opuntia ficus mucilage) and conventional coagulants using multi-criteria decision analysis

Martínez-Cruz

Valencia

Araiza-Aguilar

et al. 2021

Heliyon

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The main aim of this research was to compare a bio-coagulant, organic coagulant, and a conventional coagulant applied to the treatment of leachates. Coagulant options were Stage 1 FeCl 3 , Stage 2 Polyamine, and Stage 3 Opuntia ficus mucilage (OFM). Optimal conditions for maximum chemical oxygen demand (COD) removal were determined by experimental data and Response Surface Methodology. The application of Multiple Criteria Decision Analysis using Multi-Criteria Matrix (MCM) was explored by evaluating the Coagulation-Flocculation processes. Maximum COD removal (%) and the best MCM scores (on a scale from 0 to 100) were: Stage 1: 69.2AE0.9 and 48.50, Stage 2: 37.8AE1.1 and 79.0, and Stage 3: 71.1AE1.7, and 81.5. Maximum COD removal using FeCl 3 and OFM was not statistically different (p 0.15 < 0.05). OFM extraction process was evaluated (yield 0.70 AE 1.17%, carbohydrate content 32.6 AE 1.18%). MCM allows the evaluation of additional technical aspects, besides oxygen COD removal, as well as economic aspects, permitting a more comprehensive analysis. Significant COD removals indicate that the use of OFM as a coagulant in the treatment of stabilized leachate was effective. Opuntia ficus cladodes, a residue, were used to treat another residue (leachates).

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Landfill leachate treatment by immediate one-step lime precipitation, carbonation, and phytoremediation fine-tuning

Ramalho

Jovanović

Afonso

et al. 2022

Environ Sci Pollut Res

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An Eco-Innovative Solution for Reuse of Leachate Chemical Precipitation Sludge: Application to Sanitary Landfill Coverage

Cited by 7 publications

References 0 publications

Integrated Aerobic-Reagent Technology for the Pre-Treatment of Leachates from Municipal Solid Waste Landfills

Integrated Aerobic-Reagent Technology for the Pre-Treatment of Leachates from Municipal Solid Waste Landfills

Leachate treatment: comparison of a bio-coagulant (Opuntia ficus mucilage) and conventional coagulants using multi-criteria decision analysis

Landfill leachate treatment by immediate one-step lime precipitation, carbonation, and phytoremediation fine-tuning

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