Review on landfill leachate treatment methods

Anqi, Tu; Zhang, Zhiyong; Suhua, Hao; Li, Xia

doi:10.1088/1755-1315/565/1/012038

Cited by 12 publications

(7 citation statements)

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“…2023;15(1):56-66. https://doi.org/10.20473/jkl.v15i1.2023. [56][57][58][59][60][61][62][63][64][65][66] nitrogen, and other pollutants in the form of suspended particles and dissolved solid contaminants (8)(9)(10). Leachate has the potential to contaminate groundwater and the environment due to the high quantity of toxins it contains (8,11).…”

Section: Cite This Asmentioning

confidence: 99%

The Effect of Eco-Enzyme Spraying on Suwung Landfill Waste, Denpasar, on Changes in Leachate Characteristics

Muliarta

Sudita²,

Situmeang³

2023

JKL

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Introduction: Bali, as an international tourist destination, is still experiencing problems in waste management. Suwung Landfill, Denpasar, is one of the landfills for waste originating from the Denpasar, Badung, Gianyar, and Tabanan (Sarbagita) areas. Methods: This research was an experimental study, by watering eco-enzymes on garbage heaps and examining changes in leachate parameters. Watering was carried out daily at a dose of 1 L of eco-enzyme dissolved in 1000 L of water and used for watering a garbage pile of 1 ha. The area of piles of garbage watered with eco-enzymes reaches 5 ha. Measured leachate parameters include pH, BOD, COD, TSS, N, cadmium, and mercury. Results and Discussion: Eco-enzymes have the potential to become activators or decomposers in waste composting. The evidence is that eco-enzyme watering causes the average leachate temperature to range from 36.63 to 40.370C, where the increase in leachate temperature occurs due to the rise in the temperature of the garbage pile. An increase in temperature characterizes the activity of microbes increases, so the decomposition process becomes rapid. Conclusion: Eco-enzyme spraying leads to a characteristic change in the form of an increase in the value of leachate parameters. The increase in temperature value, pH, BOD, COD, and N content of leachate indicates that environmentally friendly enzymes accelerate the decomposition of organic matter. The rapid decomposition process causes the total suspended density of leachate to increase.

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Section: Cite This Asmentioning

confidence: 99%

The Effect of Eco-Enzyme Spraying on Suwung Landfill Waste, Denpasar, on Changes in Leachate Characteristics

Muliarta

Sudita²,

Situmeang³

2023

JKL

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“…Microorganisms that are crucial to the biodegradation of organic waste assist in eliminating the contaminants from landfill leachate during the biological treatment process. The biological procedure also eliminates leachate with a significant amount of BOD [8]. Treating the landfill leachate through a biological process can be done by following different processes like aerobic, anaerobic, nitrification/denitrification, the ANAMMOX process.…”

Section: Biological Treatmentmentioning

confidence: 99%

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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“…Under aerobic circumstances, microbial decomposition produces carbon dioxide and sludge, whereas anaerobic conditions yield carbon dioxide and methane. Nevertheless, one of the fundamental disadvantages of biological techniques is that they are ineffective at removing heavy metals (Anqi et al, 2020;Luo et al, 2020;Torretta et al, 2016).…”

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confidence: 99%

“…Successful application of several hybrid techniques is reported for the efficient removal of nitrogen and heavy metal from leachate. These approaches are supposed to lower treatment costs by combining several different techniques (Anqi et al, 2020;Lippi et al, 2018;Luo et al, 2020;Negi et al, 2020).…”

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“…Aerobic techniques include engineered wetlands, rotating biological contractors (RBCs), membrane bioreactors (MBR), and trickling filters. An upflow anaerobic sludge blanket (UASB) and anaerobic ammonium oxidation (Anammox) are the two components of the anaerobic process (Anqi et al, 2020). These procedures offer a simple, low-cost treatment that effectively removes significant quantities of organic and nitrogenous waste.…”

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The Potential of AHP-TOPSIS and Fuzzy-TOPSIS Hybrid MCDM Techniques for Evaluation of Mature Landfill Leachate Treatment Technologies

Nath,

Debnath

2024

Preprint

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Leachate is a noxious liquid with a high concentration of organic and inorganic substances produced by interactions of several environmental factors in a landfill. It is quite toxic to groundwater, surface water, and the environment; thus, it must be treated thoroughly before disposal. There are a few traditional and advanced technologies that exist for the treatment of landfill leachate, which are broadly categorized as biological, physicochemical, and hybrid technologies. According to the literature, every technology has pros and cons, and no single treatment method is sufficient to provide the required efficiency. Thus, selecting the optimal methodology for landfill leachate treatment requires a multi-criteria decision-making (MCDM) approach that incorporates several criteria and alternatives. In the research, integrated AHP-TOPSIS and integrated Fuzzy-TOPSIS approaches were employed to evaluate their potential to rank the available treatment options and to determine the optimal treatment strategy for optimal treatment of leachate. In this decision-making process, ten criteria (the removal efficiency of chemical oxygen demand (COD), biochemical oxygen demand (BOD), ammonia nitrogen, and heavy metals, operation and maintenance cost, installation time, treatment time, environmental effect, simplicity of operation and maintenance, and treatment plant flexibility with dependability) were considered. The weights of the considered criteria were determined using the AHP and Fuzzy techniques. A combination of two biological techniques, a combination of physical and biological methods, and an integration of the physicochemical method with biological methods were included among the considered alternatives (treatment approaches). The alternatives were prioritised with the help of integrated decision-making processes from a total of fifteen different treatment options. The findings indicate that membrane biological reactor (MBR) (A8), advanced oxidation process (AOPs) + MBR (A10), and coagulation-flocculation (A13) and up-flow anaerobic sludge blanket reactor (UASB) + Membrane filtration (MF) (A1) (A8>A10>A13>A1) are the first four treatment approaches as determined by only AHP, integrated AHP-TOPSIS, and Fuzzy-TOPSIS methodology. The calculated results indicate that the hybrid methods are better suited than conventional treatment approaches for toxic landfill leachate treatment.

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Review on landfill leachate treatment methods

Cited by 12 publications

References 5 publications

The Effect of Eco-Enzyme Spraying on Suwung Landfill Waste, Denpasar, on Changes in Leachate Characteristics

The Effect of Eco-Enzyme Spraying on Suwung Landfill Waste, Denpasar, on Changes in Leachate Characteristics

Landfill Leachate: Review of various treatment approaches

The Potential of AHP-TOPSIS and Fuzzy-TOPSIS Hybrid MCDM Techniques for Evaluation of Mature Landfill Leachate Treatment Technologies

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