MSW stabilization in an anaerobic bioreactor landfill and evaluation of in-situ leachate treatment potential with the help of quadric model

Nain, Anil; Lohchab, Rajesh Kumar; Singh, Kulbir; Kumari, Mikhlesh; Saini, Jitender Kumar

doi:10.1007/s10163-021-01287-4

Cited by 9 publications

(2 citation statements)

References 65 publications

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“…Among them, pH is a significant parameter in AD since the microbial activities are extremely sensitive to changes in pH levels. According to Nain et al [68], the optimal pH for AD of LFL should be in a range of 5.56-7.58. Thus, precise control of pH levels in LFL treating anaerobic digesters is a top requirement [2].…”

Section: Design Parameters In Lfl Anaerobic Treatmentmentioning

confidence: 99%

State of the Art in Anaerobic Treatment of Landfill Leachate: A Review on Integrated System, Additive Substances, and Machine Learning Application

Zamrisham

Wahab

Zainal

et al. 2023

Water

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Leachates from landfills are highly polluted with a considerable content of organic and inorganic pollutants which pose severe deterioration to environment including soil, groundwater, surface water and air. Several mitigative measures have been applied for effective management of leachate such as biological treatment, engineering device control leachate migration, physical/chemical treatment, and membrane technology. Among the alternatives, anaerobic digestion (AD) is promising, with effective removal of pollutants and high potential for renewable energy production and nutrient recovery. Landfill leachate (LFL) is an excellent source as a substrate in an AD system, with its high content of organic matters. The advantages and disadvantages of AD of LFL were extensively discussed in this review in terms of its potential as a co-substrate, pre-treatment application, and the types and design parameters of the digester. The review critically evaluated the previous studies on leachate treatment using an AD system as well as potential factors which can enhance the treatment efficiency, including the application of an integrated system, additive substances as well as potential inhibition factors. Pre-treatment methods have the potential to meet desired effluent quality of LFL before discharging into receiving bodies. The review also highlighted the application of kinetic modelling and machine learning practices, along with the potential of energy generation in AD of LFL. Additionally, the review explored the various strategies, and recent advances in the anaerobic treatment of LFL, which suggested that there is a requirement to further improve the system, configuration and functioning as a precursor in selecting suitable integrated LFL-treatment technology.

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Section: Design Parameters In Lfl Anaerobic Treatmentmentioning

confidence: 99%

State of the Art in Anaerobic Treatment of Landfill Leachate: A Review on Integrated System, Additive Substances, and Machine Learning Application

Zamrisham

Wahab

Zainal

et al. 2023

Water

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“…The Municipal Solid Waste (MSW) disposal trends in developing countries in the last decade showed a modest increase in engineered landfills use regardless of overall progress such as the MSW collection service growth. Nonetheless, proper management still a challenging task due to poor operating conditions, lack of budget, and inappropriate standards [1,2]. Particularly in Brazil, the final disposal in sanitary landfills increased by 2,7% between 2010 -2019 and the collection service available for the population increased from 88% to 92%, as well as the quantity of MSW landfilled in irregular areas -uncontrolled landfills and dumpsites (2010: 25 x 10 6 tons; 2019: 29 x 10 6 tons) [3].…”

Section: Introductionmentioning

confidence: 99%

A System Dynamic Model to Estimate Leachate and Biogas Production in MSW Irregular Disposal Areas Aided by Digital Terrain Model

Lopes¹,

Fernandes²,

Freire³

2021

AJEP

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Interactions between several parameters to estimate leachate and biogas production are very complex especially in irregular disposal areas without operational control and with few climate information. Nevertheless, the modeling challenges can be overcome using a System Dynamics (SD) approach that allows measure long term dynamics of a complex system. The proposed model is based upon a computer simulation to understand circular causality among soil water balance model and modified first-order decay methane generation aided by MSW landfilled volume calculation from Digital Terrain Model. The leachate accumulated is considered as targets for the calibration and validation. A model test run demonstrated that measured and calculated values of the leachate flow rate, applied in Volta Redonda's uncontrolled landfill (Brazil) with a spatial resolution of 4,3 cm, were similar (RMSE = 0.10013 and SD = 0.0994). The SD model fitted with higher accuracy with the real data, indicating differences less than 8% for leachate production. After landfill methane generation parameters translating among first-order decay model it was found k = 0.28 1/yr and the L 0 = 62,18 (m 3 CH 4 /ton waste). The obtained result were compared to the LandGEM modified model results and shows that the proposed method was capable of predicting the final productivity without overestimating the methane yield and was also able to capture the system behavior.

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Portland cement solidified construction waste using MSW leachate and phosphate admixtures

Falamaki

Homaee

Eskandari

et al. 2022

J Mater Cycles Waste Manag

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MSW stabilization in an anaerobic bioreactor landfill and evaluation of in-situ leachate treatment potential with the help of quadric model

Cited by 9 publications

References 65 publications

State of the Art in Anaerobic Treatment of Landfill Leachate: A Review on Integrated System, Additive Substances, and Machine Learning Application

State of the Art in Anaerobic Treatment of Landfill Leachate: A Review on Integrated System, Additive Substances, and Machine Learning Application

A System Dynamic Model to Estimate Leachate and Biogas Production in MSW Irregular Disposal Areas Aided by Digital Terrain Model

Portland cement solidified construction waste using MSW leachate and phosphate admixtures

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