Advanced treatment of landfill leachate through combined Anammox-based biotreatment, O3/H2O2 oxidation, and activated carbon adsorption: technical performance, surrogate-based control strategy, and operational cost analysis

Yang, Yongyuan; Ricoveri, Alex; Demeestere, Kristof; Hulle, Stijn Van

doi:10.1016/j.jhazmat.2022.128481

Cited by 16 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is mainly due to the following related reactions, R (11)- (15), in solution [51][52][53]: hypothesis that the decrease in electron density is associated with electron consumption, leading to the generation of more active species. Several studies have reported that H2O2, O3, and, • OH are the main active species in the degradation process of ammonia nitrogen wastewater [21,[48][49][50]. Figure 8b demonstrates the effect of the applied voltage on the concentrations of these three active species in the liquid phase.…”

Section: Gas-liquid Discharge Plasma Active Speciesmentioning

confidence: 96%

Ammonia Nitrogen Removal by Gas–Liquid Discharge Plasma: Investigating the Voltage Effect and Plasma Action Mechanisms

Zheng,

Chang,

Liang

et al. 2023

Water

View full text Add to dashboard Cite

Atmospheric pressure gas–liquid discharge plasma has garnered considerable attention for its efficacy in wastewater contaminant removal. This study utilized atmospheric oxygen gas–liquid discharge plasma for the treatment of ammonia nitrogen wastewater. The effect of applied voltage on the treatment of ammonia nitrogen wastewater by gas–liquid discharge plasma was discussed, and the potential reaction mechanism was elucidated. As the applied voltage increased from 9 kV to 17 kV, the ammonia nitrogen removal efficiency rose from 49.45% to 99.04%, with an N2 selectivity of 87.72%. The mechanism of ammonia nitrogen degradation by gas–liquid discharge plasma under different applied voltages was deduced through electrical characteristic analysis, emission spectrum diagnosis, and further measurement of the concentration of active species in the gas–liquid two-phase system. The degradation of ammonia nitrogen by gas–liquid discharge plasma primarily relies on the generation of active species in the liquid phase after plasma–gas interactions, rather than direct plasma effects. Increasing the applied voltage leads to changes in discharge morphology, higher energy input, elevated electron excitation temperatures, enhanced collisions, a decrease in plasma electron density, and an increase in rotational temperatures. The change in the plasma state enhances the gas–liquid transfer process and increases the concentration of H2O2, O3, and, ⋅OH in the liquid phase. Ultimately, the efficient removal of ammonia nitrogen from wastewater is achieved.

show abstract

Section: Gas-liquid Discharge Plasma Active Speciesmentioning

confidence: 96%

Ammonia Nitrogen Removal by Gas–Liquid Discharge Plasma: Investigating the Voltage Effect and Plasma Action Mechanisms

Zheng,

Chang,

Liang

et al. 2023

Water

View full text Add to dashboard Cite

show abstract

“…These methods allow the removal of non-oxidizing humic and fulvic acids from the leachates, as well as other specific persistent contaminants, including heavy metal ions, organochlorine compounds, etc. [ 24 , 25 ]. Fenton method and its modifications is one of the most effective methods of reagent treatment of landfill leachates.…”

Section: Introductionmentioning

confidence: 99%

Optimal pre-treatment of moderately old landfill leachate at the pilot-scale treatment plant using the combined aerobic biochemical and reagent method

Malovanyy

Zhuk

Tymchuk

et al. 2023

Heliyon

View full text Add to dashboard Cite

“…The main deficiency of aerobic and anaerobic biological methods of landfill leachate treatment is the need for additional stages for more deep treatment to meet the requirements for discharge into open water courses (Lebron et al, 2021;Malovanyy et al, 2018). The most common solution is the use of combined multi-stage treatment methods, where biological methods are combined with reverse osmosis (Tałałaj et al, 2021), treatment with strong oxidants, including ozonation (Yang et al, 2022), and Fenton process (El Mrabet et al, 2020), followed by precipitation enhanced by coagulation and flocculation (De et al, 2019;Malovanyy et al, 2018). Oxidation and sorption are especially necessary and effective for the treatment of mature leachate and for the removal of heavy metal ions (Taghavi et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Pilot-Scale Modelling of Aerated Lagoon Technology for the Treatment of Landfill Leachate: Case Study Hrybovychi Plant

Malovanyy¹,

Zhuk²,

Tymchuk³

et al. 2022

Environ. Nat. Resour. J.

View full text Add to dashboard Cite

Results of experimental pilot-scale study of aerobic pre-treatment of the leachate of the Hrybovychi municipal solid waste (MSW) landfill (Ukraine) in batch reactor mode and in semi-continuous mode are presented. The dependencies of key pollution indicators, namely biological oxygen demand, chemical oxygen demand, pH, suspended solids, and total Kjeldahl nitrogen (TKN), during a 30-day periodical aeration process were obtained. The first 15 days treatment was in the batch reactor mode treating an initial volume of raw leachate. The second 15 days treatment was in a semi-continuous reactor mode: 400 L of aerobically pre-treated leachate were pumped to the next treatment stage and consequently the same volume of raw leachate was added in the bioreactor tank. Aerobic biological treatment of Hrybovychi landfill leachate using the developed method achieved significant treatment effects, namely 55.3% of the total Kjeldahl nitrogen, 27% of COD, 70.2% of BOD5 and 66.5% of BODtot. Time dependences of TKN, COD, BOD5, and BODtot are well fitted by simple exponential trends, which correspond to first-order reactions. Landfill leachate, aerobically pre-treated in the pilot-scale treatment unit, can be discharged for final treatment to the bio-plateau or to the wastewater treatment plant.

show abstract

Advanced treatment of landfill leachate through combined Anammox-based biotreatment, O3/H2O2 oxidation, and activated carbon adsorption: technical performance, surrogate-based control strategy, and operational cost analysis

Cited by 16 publications

References 29 publications

Ammonia Nitrogen Removal by Gas–Liquid Discharge Plasma: Investigating the Voltage Effect and Plasma Action Mechanisms

Ammonia Nitrogen Removal by Gas–Liquid Discharge Plasma: Investigating the Voltage Effect and Plasma Action Mechanisms

Optimal pre-treatment of moderately old landfill leachate at the pilot-scale treatment plant using the combined aerobic biochemical and reagent method

Pilot-Scale Modelling of Aerated Lagoon Technology for the Treatment of Landfill Leachate: Case Study Hrybovychi Plant

Contact Info

Product

Resources

About