Ozonation in view of micropollutant removal from biologically treated landfill leachate: Removal efficiency,  OH exposure, and surrogate-based monitoring

Yang, Yongyuan; Liu, Ze; Demeestere, Kristof; Hulle, Stijn Van

doi:10.1016/j.cej.2021.128413

Cited by 36 publications

(21 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The obtained MW fractions were subjected to COD measurements. MPs concentrations were measured with gas chromatography mass spectrometry after extraction with dichloromethane, according to (Yang et al, 2021c). The details of measurement procedures and method validation were given in Text 1, SI.…”

Section: Methodsmentioning

confidence: 99%

“…A Shimadzu 1600 spectrophotometer equipped with a 1 cm quartz cuvette was used to measure the absorbance at a wavelength of 254 nm (UVA 254 ), which is widely used as a surrogate of aromatic compounds in wastewater. (Yang et al, 2021c). Fluorescence excitation and emission matrices (EEM) were determined on diluted landfill leachate samples (UVA 254 < 0.1 cm −1 ) using a RF-5301 PC Shimadzu spectrofluorometer.…”

Section: Methodsmentioning

confidence: 99%

“…The obtained biologically treated sample was then subjected to ozonation in a lab-scale semi-batch reactor. The details of both the biological and ozonation reactors as well as the operational settings can be found in our previous studies (Yang et al, 2021c(Yang et al, , 2021d. In the ozonation treatment step, the applied ozone dose was optimized at 0.60 g O 3 /g COD, corresponding to an ozone consumption of 0.39 g O 3 /g COD, based on the COD removal in preliminary experiments.…”

Section: Leachate Sample and Pretreatmentsmentioning

confidence: 99%

“…carbamazepine and bisphenol A) in leachate, but a high ozone dose (up to 2.0 g O 3 /g DOC) was required for a 90% removal of ozone-recalcitrant compounds (k O3 < 10 M −1 s −1 , e.g. atrazine and alachlor) (Yang et al, 2021c). Furthermore, during the ozonation of leachate, some oxidation by-products might be formed, e.g., bromide and aliphatic compounds, posing a potential risk to the receiving aquatic ecosystem (Ateş and Argun, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Our previous study indicates that spectral parameters, e.g. UVA 254 can be applied to predict the percentage removal of MPs during ozonation of landfill leachate, based on developed correlation models (Yang et al, 2021c). Yet, correlation models for making predictions of the adsorption of MPs in landfill leachate are not available so far.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Surrogate-based follow-up of activated carbon adsorption preceded by ozonation for removal of bulk organics and micropollutants from landfill leachate

Yang

Ricoveri

Demeestere

et al. 2022

Science of The Total Environment

Self Cite

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Leachate Sample and Pretreatmentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Surrogate-based follow-up of activated carbon adsorption preceded by ozonation for removal of bulk organics and micropollutants from landfill leachate

Yang

Ricoveri

Demeestere

et al. 2022

Science of The Total Environment

Self Cite

View full text Add to dashboard Cite

Herbicide risks to non-target species and the environment: A review

Bamal,

Duhan,

Pal

et al. 2024

Environ Chem Lett

View full text Add to dashboard Cite

Performance investigation of electrochemical assisted HClO/Fe2+ process for the treatment of landfill leachate

Miao

Zhang

2022

Environ Sci Pollut Res

View full text Add to dashboard Cite

The feasibility of removal of COD and ammonia nitrogen (NH4 + -N) from landfill leachate by electrochemical assisted HClO/Fe 2+ process is demonstrated for the first time. The performance of active chlorine generation at the anode was evaluated in Na2SO4/NaCl media, and a higher amount of active chlorine was produced at greater chloride concentration and higher current density. The probe experiments confirmed the coexistence of hydroxyl radical (  OH) and Fe(IV)oxo complex (Fe IV O 2+ ) in the HClO/Fe 2+ system. The influence of initial pH, Fe 2+ concentration and applied current density on COD and NH4 + -N abatement was elaborately investigated. The optimum pH was found to be 3.0, and the proper increase in Fe 2+ dosage and current density resulted in higher COD removal due to the accelerated accumulation of  OH and Fe IV O 2+ in the bulk liquid phase. Whereas, the NH4 + -N oxidation was significantly affected by the applied current density because of the effective active chlorine generation at high current, but was nearly independent of Fe 2+ concentration. The reaction mechanism of electrochemical assisted HClO/Fe 2+ treatment of landfill leachate was finally proposed. The powerful  OH and Fe IV O 2+ , in concomitance with active chlorine and M(  OH) were responsible for COD abatement and active chlorine played a key role in NH4 + -N oxidation. The proposed electrochemical assisted HClO/Fe 2+ process is a promising alternative for the treatment of refractory landfill leachate.

show abstract

Ozonation in view of micropollutant removal from biologically treated landfill leachate: Removal efficiency, OH exposure, and surrogate-based monitoring

Cited by 36 publications

References 38 publications

Surrogate-based follow-up of activated carbon adsorption preceded by ozonation for removal of bulk organics and micropollutants from landfill leachate

Surrogate-based follow-up of activated carbon adsorption preceded by ozonation for removal of bulk organics and micropollutants from landfill leachate

Herbicide risks to non-target species and the environment: A review

Performance investigation of electrochemical assisted HClO/Fe2+ process for the treatment of landfill leachate

Contact Info

Product

Resources

About