Optimization of Fenton process for the treatment of landfill leachate

Zhang, Hui; Choi, Heung Jin; Huang, Chin‐Pao

doi:10.1016/j.jhazmat.2005.05.025

Cited by 357 publications

(214 citation statements)

References 31 publications

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“…In comparison with other studies (Deng and Engelhardt 2006, Gogate and Pandit 2004, Lau et al 2001, Zhang et al 2005) sludge settling characteristic was excellent at the COD/H 2 O 2 ratio 1:1, but became poor for 1:2 ratio. It seemed • OH by acoustic cavitation.…”

Section: Methodscontrasting

confidence: 46%

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Automotive fleet repair facility wastewater treatment using air/ZVI and air/ZVI/H2O2 processes

Bogacki¹,

Al‐Hazmi²

2017

Archives of Environmental Protection

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Advanced automotive fleet repair facility wastewater treatment was investigated with Zero-Valent Iron/Hydrogen Peroxide (Air/ZVI/H2O2) process for different process parameters: ZVI and H2O2doses, time, pH. The highest Chemical Oxygen Demand (COD) removal efficiency, 76%, was achieved for ZVI/H2O2doses 4000/1900 mg/L, 120 min process time, pH 3.0. COD decreased from 933 to 227 mg/L. In optimal process conditions odor and color were also completely removed. COD removal efficiency was increasing with ZVI dose. Change pH value below and over 3.0 causes a rapid decrease in the treatment effectiveness. The Air/ZVI/H2O2process kinetics can be described as d[COD]/dt = −a [COD]tm, where ‘t’ corresponds with time and ‘a’ and ‘m’ are constants that depend on the initial reagent concentrations. H2O2influence on process effect was assessed. COD removal could be up to 40% (560 mg/L) for Air/ZVI process. The FeCl3coagulation effect was also evaluated. The best coagulation results were obtained for 700 mg/L Fe3+dose, that was slightly higher than dissolved Fe used in ZVI/H2O2process. COD was decreased to 509 mg/L.

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Section: Methodscontrasting

confidence: 46%

“…Oxygen is paramagnetic and can be effectively introduced to wastewater by a magnetic fi eld (Kim et al 2011, Zhang et al 2005. Reactions of oxygen with dissolving Fe, creation of H 2 O 2 are the most important comparing differences in COD.…”

Section: Methodsmentioning

confidence: 99%

Automotive fleet repair facility wastewater treatment using air/ZVI and air/ZVI/H2O2 processes

Bogacki¹,

Al‐Hazmi²

2017

Archives of Environmental Protection

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“…Partial oxidation of intermediate compounds could minimize the consumption of chemical reagents and result in substantial reduction of COD and toxicity. Additionally, higher biological activity of degradable low molecular weight components was in favor of the further biological treatment [9,22]. So the optimal reaction time should be 2 h when both the COD removal and B/C value were taken into consideration.…”

Section: Effect Of Reaction Timementioning

confidence: 99%

“…A wide variety of Fenton's reagent applications have been reported, such as treatment of textile wastewater [4,5], reduction of Polynuclear Aromatic Hydrocarbons (PAHs) in water [6], removal of Adsorbable Organic Halogens (AOXs) from pharmaceutical wastewater [7], treatment of paper pulp manufacturing effluent [8], treatment of leachate [9], removal of citrate and hypophosphite binary components [10], or treatment of wastewater containing nitroaromatic compounds [11].…”

Section: Introductionmentioning

confidence: 99%

Pretreatment of acrylic fiber manufacturing wastewater by the Fenton process

Zhang

et al. 2012

Desalination

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“…According to Table 4, the optimal pH was in a range 2.0-4.0. The pH value affects the activity of both the oxidant and the substrate, the speciation of iron, and hydrogen peroxide decomposition [44]. Higher •OH radical product yields in the pH range of 2.0-4.0 by a reaction involving in the organometallic complex where either hydrogen peroxide is regenerated or reaction rates are increased [45].…”

Section: Fenton Oxidationmentioning

confidence: 99%

Removal of Organic Matter from Landfill Leachate by Advanced Oxidation Processes: A Review

Zhou

Hua

2010

International Journal of Chemical Engineering

126

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In most countries, sanitary landfill is nowadays the most common way to eliminate municipal solid wastes (MSWs). However, sanitary landfill generates large quantity of heavily polluted leachate, which can induce ecological risk and potential hazards towards public health and ecosystems. The application of advanced oxidation processes (AOPs) including ozone-based oxidation, Fenton oxidation, electrochemical oxidation, and other AOPs to treatment of landfill leachate was reviewed. The treatment efficiency in term of chemical oxygen demand (COD) of various AOPs was presented. Advantages and drawbacks of various AOPs were discussed. Among the AOPs reviewed, Fenton process should be the best choice, not only because it can achieve about 49∼89% of COD removal with COD ranging from 837 to 8894 mg/L, but also because the process is cost-effective and simple in technological aspect, there is no mass transfer limitation (homogeneous nature) and both iron and hydrogen peroxide are nontoxic.

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Optimization of Fenton process for the treatment of landfill leachate

Cited by 357 publications

References 31 publications

Automotive fleet repair facility wastewater treatment using air/ZVI and air/ZVI/H2O2 processes

Automotive fleet repair facility wastewater treatment using air/ZVI and air/ZVI/H2O2 processes

Pretreatment of acrylic fiber manufacturing wastewater by the Fenton process

Removal of Organic Matter from Landfill Leachate by Advanced Oxidation Processes: A Review

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