Treatment of hazardous waste landfill leachate using Fenton oxidation process

Singa, Pradeep Kumar; Isa, Mohamed Hasnain; Ho, Yeek‐Chia; Lim, Jun-Wei

doi:10.1051/e3sconf/20183402034

Cited by 15 publications

(4 citation statements)

References 9 publications

(7 reference statements)

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“…Singa et al [40] observed that the maximum COD removal from landfill leachate by using photo Fenton was 68% under optimum operating conditions. Also, Singa et al [41] found that under favorable experimental conditions, maximum COD removal from landfill leachate by using Fenton process was 56.49%. Sruthi et al [42] indicated that heterogeneous Fenton process was capable of removing 88.6% COD from landfill leachate at the optimal conditions.…”

Section: Response Optimisation and Validation Of The Experimental Modelmentioning

confidence: 99%

Removal of COD from landfill leachate by Predication and Evaluation of Multiple Linear Regression (MLR) Model and Fenton process

et al. 2019

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M UNICIPAL Solid Waste (MSW) landfill leachate contains highly concentrated organic substances which are hazardous to the environment. Therefore, it must be treated before discharged into water bodies and suitable techniques are essential for effective treatment. In this regard, multiple linear regression (MLR) model has shown to be a favorable technique for optimization of landfill leachate treatment. In this study, four operational variables, H 2 O 2 :Fe 2+ ratio, pH, reaction time, and Fe 2+ concentration, were assessed using the model. The chemical oxygen demand (COD) removal was 96.43% by experiment, while the predicted assessment was 100% under the optimized settings; time = 33.87 min, concentration of Fe 2+ = 749.64 mg/L, pH = 3, and ratio of H 2 O 2 :Fe 2+ = 2 during Fenton treatment. The high value of the coefficient of determination, R 2 = 0.896, designates a resilient relationship between the experimental and model values. The residual study (residual plot) specified that the points were randomly distributed, confirming the appropriateness of the model. The MLR model established may possibly be used for assessment of other landfill leachate treatment.

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Section: Response Optimisation and Validation Of The Experimental Modelmentioning

confidence: 99%

Removal of COD from landfill leachate by Predication and Evaluation of Multiple Linear Regression (MLR) Model and Fenton process

et al. 2019

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“…UV radiation improves the usage of H2O2 concentration and speeds up the photolysis process on each small organic molecule, but the visible light photo Fenton process requires a long processing time and higher energy consumption. Using 14 W UV lamps at 1.1 g/L Fe ion and 5.5 g/L H2O2 concentration, 84.43% of COD and 92.54% of total PAHs were removed from landfill leachate wastewater (Singa et al, 2018). The three treatment methods virtually always used the ideal Fenton dose concentration.…”

Section: Comparative Analysis Ofmentioning

confidence: 99%

Optimization Approach to Evaluate the Solar, UV and LED Visible Light Fenton Processes for Pollutant Degradation in Landfill Leachate

2022

Global NEST: The International Journal

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<p>In the current study, three different photo-assisted sources were used to evaluate the photo-Fenton oxidation process for the pollutant degradation of mature landfill leachate. Solar, UV, and LED visible light photo sources were adopted in this Fenton process. Fenton dosages (FeSO4 : H2O2) 1:30, 1.5:30, 2:30, and 2.5:30g/L were used in the investigation, which was conducted under a variety of pH settings (2 to 3.5) and at experimental reaction duration of 30, 60, 90, and 120 minutes. To analyze and compare the efficiency of the solar, UV, and LED visible light photo Fenton processes for pollutant degradation, Taguchi experimental design orthogonal arrays (L16) was employed. To analyse the significance of this experimental design for landfill leachate treatment, Larger the Better was selected. The highest levels of pollutant degradation in the Solar Photo Fenton method was identified when compared to UV, and LED visible light photo Fenton processes. The maximum removal of 95% color, 83% COD, 89% TSS, 94% Cr, 86% Cd, and 93% Cu was achieved in Solar Photo Fenton process at pH-3, Fenton dosage 1.5:30 g/L and reaction period 60 minutes.</p>

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“…Industries employ different techniques to dispose of different types of organic wastes. Organic waste is considered dangerous for several reasons, which include, but are not limited to, its non-biodegradability, chemical inertness, and bioaccumulation in the human body (Ahmed et al, 2011;Papić et al, 2009;Singa et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Study the influence of experimental conditions on the removal of organic compound in the Fenton process

Al-Kaabi

2023

ECB

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The oxidation of cyclohexylamine (CHA) was carried out in a batch reactor, using Fenton's reagent. The effects of the following parameters were investigated: residence time, pH level, ferrous ion concentration, and hydrogen peroxide concentration. Residence time ranged from 30 min to 2 h, and its effect was found to be significantly positive. A pH of 3 for the medium was observed to be optimum. Ferrous ion and hydrogen peroxide concentrations ranged from 0.1 g/l to 0.265 g/l and from 0.5 g/l to 1.3 g/l, respectively. The influence of hydrogen peroxide was significant at 0.16 g/l of ferrous ions and a pH of 3. CHA removal efficiency was measured by calculating chemical oxygen demand (COD). The maximum COD removal efficiency was 62%, and the minimum yield of ammonia was 14%. The yields of nitrite and nitrate were negligible. Overall, the results proved the effectiveness of the Fenton process for the treatment of CHA.

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Treatment of hazardous waste landfill leachate using Fenton oxidation process

Cited by 15 publications

References 9 publications

Removal of COD from landfill leachate by Predication and Evaluation of Multiple Linear Regression (MLR) Model and Fenton process

Removal of COD from landfill leachate by Predication and Evaluation of Multiple Linear Regression (MLR) Model and Fenton process

Optimization Approach to Evaluate the Solar, UV and LED Visible Light Fenton Processes for Pollutant Degradation in Landfill Leachate

Study the influence of experimental conditions on the removal of organic compound in the Fenton process

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