COD removal from biologically stabilized landfill leachate using Advanced Oxidation Processes (AOPs)

Xu, Qian; Siracusa, G.; Gregorio, Simona Di; Yuan, Qiuyan

doi:10.1016/j.psep.2018.09.014

Cited by 67 publications

(24 citation statements)

References 24 publications

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“…That is why strategies adopted to reduce the organic and inorganic loads in LFLs are generally chemical-physical processes, which might be expensive and not always effective in removing all the toxic and recalcitrant compounds. Physical-chemical treatments such as classic Fenton or combined Fenton processes, evaporation, and/or Advanced Oxidation Processes (AOPs) applied on LFLs are energy-intensive processes and often generate matrices with a residual level of toxicity [11], causing the accumulation of secondary metabolites, often more toxic than the initial pollutants [11][12][13], that impede the safe discharge of the treated LFLs.…”

Section: Introductionmentioning

confidence: 99%

Mycoremediation of Old and Intermediate Landfill Leachates with an Ascomycete Fungal Isolate, Lambertella sp.

Siracusa

Yuan

Chicca

et al. 2020

Water

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In the present study, an Ascomycete fungal strain, Lambertella sp., isolated from environmental polluted matrices, was tested for the capacity to reduce the contamination and the toxicity of intermediate and old landfill leachates. Batch tests in flasks, under co-metabolic conditions, were performed with two different old leachates, with suspended and immobilized Lambertella sp. biomass, resulting in a soluble chemical oxygen demand depletion of 70% and 45%, after 13 and 30 days, respectively. An intermediate landfill leachate was treated in lab-scale reactors operating in continuous conditions for three months, inoculated with immobilized Lambertella sp. biomass, in absence of co-substrates. The Lambertella sp. depleted the corresponding total organic carbon by 90.2%. The exploitability of the Lambertella sp. strain was evaluated also in terms of reduction of phyto-, cyto-, and mutagenicity of the different Landfill Leachates at the end of the myco-based treatment, resulting in an efficient depletion of leachate clastogenicity.

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Section: Introductionmentioning

confidence: 99%

Mycoremediation of Old and Intermediate Landfill Leachates with an Ascomycete Fungal Isolate, Lambertella sp.

Siracusa

Yuan

Chicca

et al. 2020

Water

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“…The end of life of municipal solid waste (MSW) in landfills has always been expected because of its cost and operational efficiency [1]. Landfill leachate results from percolated rainwater and moisture passing through the layers of wastes in landfills [2].…”

Section: Introductionmentioning

confidence: 99%

Impact of Salinity on Stabilized Leachate Treatment from Ozonation Process

Septiariva¹,

Suryawan²,

Sari³

et al. 2020

Adv. sci. technol. eng. syst. j.

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“…The worldwide wastewater discharge regulations and standards have become stricter; hence, there is an urgent need to find an effective LL treatment method. Many researchers are investigating new and effective methods for LL treatment, such as sorption on magnetic particles [2] and other sorbents [8], reactive granular filters [9], the use of metallic iron [4,10,11] and other heterogeneous catalysts [12,13], Fenton (classical and solar) [14][15][16][17], electro-Fenton [18,19], and other electrochemical processes [11,[20][21][22][23][24], usage of different oxidants and their combination [25,26], microwaves [10], ultrasounds [27], membrane processes [28], hydrodynamic cavitation [29], microalgae [30], biofiltration [21,31], supercritical water oxidation [32], oscillating biological membrane photoreactors [33], anaerobic digestion [27,34], dynamic membrane bioreactors [35], bio-electro-Fenton [36], upflow sludge bed reactors [37], moving bed biofilm reactors [38], and the sequencing batch reactor [39]. Moreover, a few review articles have summarized the LL treatment methods [40][41][42]…”

Section: Introductionmentioning

confidence: 99%

Treatment of Landfill Leachates with Combined Acidification/Coagulation and the Fe0/H2O2 Process

Bogacki

Marcinowski

El-Khozondar

2019

Water

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One of the major environmental concerns associated with waste disposal is the large amount of generated landfill leachates (LL), which are considered a type of wastewater with a complex composition. There is an urgent need to find an effective LL treatment method. LL were subjected to pretreatment followed by the Fe0/H2O2 process. Pretreatment efficiency was coagulation at pH 6.0 >> coagulation at pH 9.0 > acidification at pH 3.0. Coagulation at pH 6.0 in an optimal Fe3+ dose of 1000 mg/L decreased total organic carbon (TOC) from the initial concentration of 1061 mg/L to 491 mg/L while acidification to pH 3.0 decreased TOC to 824 mg/L. After acidification, the Fe0/H2O2 process with 8000/9200 mg/L Fe0/H2O2 reagent doses decreased TOC to 499 mg/L after a processing time of 60 min. Performance of the Fe0/H2O2 process after coagulation at pH 6.0 for optimal Fe0/H2O2 8000/5540 mg/L reagent doses decreased TOC to 268 mg/L (75% TOC removal). Treatment of landfill leachates with combined process coagulation and Fe0/H2O2 also increased their susceptibility to biodegradation, expressed as the biochemical oxygen demand/chemical oxygen demand (BOD5/COD) ratio from 0.13 to 0.43, allowing LL to be considered as susceptible to biodegradation. Fe0/H2O2 process kinetics was described. A statistical analysis confirmed the obtained results. The proposed method can be successfully applied for LL treatment.

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COD removal from biologically stabilized landfill leachate using Advanced Oxidation Processes (AOPs)

Cited by 67 publications

References 24 publications

Mycoremediation of Old and Intermediate Landfill Leachates with an Ascomycete Fungal Isolate, Lambertella sp.

Mycoremediation of Old and Intermediate Landfill Leachates with an Ascomycete Fungal Isolate, Lambertella sp.

Impact of Salinity on Stabilized Leachate Treatment from Ozonation Process

Treatment of Landfill Leachates with Combined Acidification/Coagulation and the Fe0/H2O2 Process

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