Evaluation of electro-oxidation of biologically treated landfill leachate using response surface methodology

Zhang, Hui; Ran, Xiaoni; Wu, Xiaogang; Zhang, Daobin

doi:10.1016/j.jhazmat.2011.01.097

Cited by 115 publications

(36 citation statements)

References 49 publications

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“…The leachate samples for GC-MS analysis were prepared by following the procedure in the literature [24][25][26]. A 500 mL leachate sample was initially extracted with CH 2 Cl 2 (HPLC grade) under neutral condition, then in alkaline condition (pH 12) by adding drops of NaOH solution, and then in acidic condition (pH 2) by adding some 1/9 (in volume) H 2 SO 4 using separating funnel.…”

Section: Methodsmentioning

confidence: 99%

Electro-Fenton treatment of mature landfill leachate in a continuous flow reactor

Zhang

Ran

2012

Journal of Hazardous Materials

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Section: Methodsmentioning

confidence: 99%

Electro-Fenton treatment of mature landfill leachate in a continuous flow reactor

Zhang

Ran

2012

Journal of Hazardous Materials

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“…1,2 Due to the recalcitrant characteristics of this leachate, its treatment has been extensively studied and a vast amount of relevant literature is available. [3][4][5][6][7][8][9] According to environmental regulations, the conditions and standards established for the discharge of effluent to water bodies must be adhered to. Thus, leachate cannot be discharged to natural water bodies without appropriate treatment since it contains high concentrations of pollutants, such as organic substances (evaluated through the chemical oxygen demand (COD) and biochemical oxygen demand (BOD)), ammonia, heavy metals and inorganic salts.…”

Section: Introductionmentioning

confidence: 99%

Application of thermal plasma for inertization of sludge produced during treatment of landfill leachate

et al. 2016

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One of the outstanding issues of concern by governments and society in general relates to the final destination of solid waste, which can bring severe impacts on social, political, economic and environmental dimensions. The sustainable development of enterprises and industries goes for the care of the planet, thus ensuring the quality of life for future generations and the planet. The disposal of municipal waste in landfills is the technique most commonly employed for the remediation of solid residues. The residues undergo decomposition beneath the soil and in the presence of water this generates leachate, which percolates down to the bottom of the landfill through drainage. This drained liquid is collected from the landfill installations and subjected to treatment, which involves physico-chemical and biological processes. Landfill leachate commonly contains heavy metals due to the incorrect disposal of products such as fluorescent bulbs and batteries. In this context, a method for the treatment of sludge originating from the physicochemical remediation of leachate using thermal plasma is proposed in this paper. The efficiency of the method was verified by monitoring the total organic carbon content, water content and density of the sludge. The quantity of metals present in the samples was determined before and after pyrolysis by thermal plasma using flame atomic absorption spectroscopy (FAAS), scanning electron microscopy (SEM) and X-ray fluorescence (XRF) spectrometry techniques. The results show that the leachate treatment method used was efficient, presenting the best results for the samples of iron and zinc.

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“…All the externally studentized residual were randomly scattered across the graph and Furthermore, there is no significant distribution pattern for all the diagnostics plots graphs. The residuals are normally distributed if the points on the plot follow a straight line [25] Normal probability plot of the studentized residuals to check for normality of residuals. The red line was produced by the software based on the externally studentized to define outliers as shown in the diagnostics plots Fig.(1-5).…”

Section: Resultsmentioning

confidence: 99%

Optimization and Statistical Analysis of Binary Composite Y2O3/SiO2 Prepared by Wet Chemical Route

Kumari¹

2018

IJRASET

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Nanopowder binary oxides consisting of Yttrium oxide (Y2O3) and silicon dioxide (SiO2) was prepared by the chemical co precipitation method. The effect of process variables lattice strain of Y2O3:SiO2 was studied using Cental Composite design. The results revealed that the significant factors affecting lattice strain were concentrations and the rate/speed of addition/mixing of precoursors, value and duration of annealing temperature. The optimal calculated parameters were found to be annealing temperature -300 0 C, drop rate-20d/min, concentration of precursors1-1 (w/v), concentration of precursors2-40 mmol/l, lattice strain Ԑ≈.000121 . The formation of Y2O3:SiO2 was confirmed by Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) studies. The strain values are calculated from W-H plot for annealed samples.

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Evaluation of electro-oxidation of biologically treated landfill leachate using response surface methodology

Cited by 115 publications

References 49 publications

Electro-Fenton treatment of mature landfill leachate in a continuous flow reactor

Electro-Fenton treatment of mature landfill leachate in a continuous flow reactor

Application of thermal plasma for inertization of sludge produced during treatment of landfill leachate

Optimization and Statistical Analysis of Binary Composite Y2O3/SiO2 Prepared by Wet Chemical Route

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