Electrochemical Oxidation of Landfill Leachate: Investigation of Operational Parameters and Kinetics Using Graphite-PVC Composite Electrode as Anode

Mussa, Zainab Haider; Othman, Mohamed Rozali; Abdullah, Pauzi

doi:10.5935/0103-5053.20150055

Cited by 21 publications

(21 citation statements)

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“…The results may be attributed to the increase of ClO − against applied voltage as confirmed by our previous study [33]. Hypochlorite (ClO − ) can be generated by electrolysis in media containing chloride ions to become the dominant oxidant during electrochemical oxidation process as described in section (3.1.2) and Fig.…”

Section: Influence Of Applied Voltagesupporting

confidence: 76%

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Removal of caffeine from aqueous solution by indirect electrochemical oxidation using a graphite-PVC composite electrode: A role of hypochlorite ion as an oxidising agent

Al-Qaim

Mussa

Othman

et al. 2015

Journal of Hazardous Materials

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Section: Influence Of Applied Voltagesupporting

confidence: 76%

“…The anode was graphite-PVC composite electrode. The preparation of anode was described elsewhere [33]. In summary, the graphite PVC electrode was prepared by mixing a weighed portion of graphite powder (100 mesh in size and 99.9% purity, Aldrich Chemical Company) and PVC in 4 mL tetrahydrofuran solvent.…”

Section: Electrolytic Oxidation Experimentsmentioning

confidence: 99%

Removal of caffeine from aqueous solution by indirect electrochemical oxidation using a graphite-PVC composite electrode: A role of hypochlorite ion as an oxidising agent

Al-Qaim

Mussa

Othman

et al. 2015

Journal of Hazardous Materials

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“…Therefore, advanced treatment methods are necessary prior to discharge. Several treatment applications have been applied to leachate, such as coagulation and electrocoagulation [14,15], Fenton, photo-Fenton and Electro-Fenton reaction [16,17,18,19], ozonation-based advanced oxidation processes [20,21,22], adsorption and ion exchange [23,24]. In spite of the potential or promise demonstrated by certain treatment processes; questions about treatment cost, sludge production and chemical residues in treated effluent remain unanswered.…”

Section: Introductionmentioning

confidence: 99%

Factorial Design and Optimization of Landfill Leachate Treatment Using Tannin-Based Natural Coagulant

et al. 2019

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In this study, tannin-based natural coagulant was used to treat stabilized landfill leachate. Tannin modified with amino group was utilized for the treatment process. Central composite design (CCD) was used to investigate and optimize the effect of tannin dosage and pH on four responses. The treatment efficiency was evaluated based on the removal of four selected (responses) parameters; namely, chemical oxygen demand (COD), color, NH3–N and total suspended solids (TSS). The optimum removal efficiency for COD, TSS, NH3–N and color was obtained using a tannin dosage of 0.73 g at a pH of 6. Moreover, the removal efficiency for selected heavy metals from leachate; namely, iron (Fe2+), zinc (Zn2+), copper (Cu2+), chromium (Cr2+), cadmium (Cd2+), lead (Pb2+), arsenic (As3+), and cobalt (Co2+) was also investigated. The results for removal efficiency for COD, TSS, NH3–N, and color were 53.50%, 60.26%, and 91.39%, respectively. The removal of selected heavy metals from leachate for Fe2+, Zn2+, Cu2+, Cr2+, Cd2+, Pb2+, As3+ and cobalt Co2+ were 89.76%, 94.61%, 94.15%, 89.94%, 17.26%, 93.78%, 86.43% and 84.19%, respectively. The results demonstrate that tannin-based natural coagulant could effectively remove organic compounds and heavy metals from stabilized landfill leachate.

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“…The two methods are used either individually or combined together for the contaminates removal from wastewater. These techniques might have economic and environmental advantages compared with other conventional techniques that include the use of chemicals (Mussa et al ., 2015).…”

Section: Introductionmentioning

confidence: 99%

Electro‐oxidation of phenol in petroleum wastewater using a novel pilot‐scale electrochemical cell with graphite and stainless‐steel electrodes

Abou‐Taleb

Hellal

Kamal

2020

Water & Environment J

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This work investigated the removal of phenol from petroleum wastewater by the electro‐oxidation process. The experimental design was developed on a pilot‐scale electro‐oxidation system equipped with a cylindrical shape of graphite electrodes as an anode and stainless‐steel electrodes as a cathode. An initial study was performed based on operating variables such as current density and time on real petroleum wastewater. The optimum conditions were obtained as a current density of 3 mA/cm2 and time 15 min. Under these applied optimum conditions, complete phenol removal from an initial concentration of about 6.8 mg/L was achieved. Also, 50–60% removal of organic matter in terms of chemical oxygen demand (COD) and biological oxygen demand (BOD). The removal of organic matter using electro‐oxidation requires a long reaction time. Also, the economic study indicated that the energy consumption was determined to be 0.79 kWh/m3 and the operating cost was 0.051 $/m3 which is very economical compared with conventional methods.

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Electrochemical Oxidation of Landfill Leachate: Investigation of Operational Parameters and Kinetics Using Graphite-PVC Composite Electrode as Anode

Cited by 21 publications

References 0 publications

Removal of caffeine from aqueous solution by indirect electrochemical oxidation using a graphite-PVC composite electrode: A role of hypochlorite ion as an oxidising agent

Removal of caffeine from aqueous solution by indirect electrochemical oxidation using a graphite-PVC composite electrode: A role of hypochlorite ion as an oxidising agent

Factorial Design and Optimization of Landfill Leachate Treatment Using Tannin-Based Natural Coagulant

Electro‐oxidation of phenol in petroleum wastewater using a novel pilot‐scale electrochemical cell with graphite and stainless‐steel electrodes

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