Adsorptive treatment of stabilized landfill leachate using activated palm oil fuel ash (POFA)

Abuabdou, Salahaldin M.A.; Teng, Ong Wei; Bashir, Mohammed J.K.; Aun, Ng Choon; Sethupathi, Sumathi

doi:10.1063/1.5126537

Cited by 8 publications

(5 citation statements)

References 22 publications

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“…The NH 3 -N removal were gradually increased with the increasing of PAC concentration to some extent, which means that the incorporated PAC has enhanced the membrane performance in terms of NH 3 -N removal, in addition to the main separation action gained by the membrane texture itself. This good result might be ascribed to the high adsorption characteristics of the used PAC, which significantly improved the fabricated membrane efficiency [5,52].…”

Section: Pure Flux and Transmembrane Pressure Studiesmentioning

confidence: 93%

A New Polyvinylidene Fluoride Membrane Synthesized by Integrating of Powdered Activated Carbon for Treatment of Stabilized Leachate

Abuabdou

Jaffari

et al. 2021

Water

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Stabilized landfill leachate contains a wide variety of highly concentrated non-biodegradable organics, which are extremely toxic to the environment. Though numerous techniques have been developed for leachate treatment, advanced membrane filtration is one of the most environmentally friendly methods to purify wastewater effectively. In the current study, a novel polymeric membrane was produced by integrating powdered activated carbon (PAC) on polyvinylidene fluoride (PVDF) to synthesize a thin membrane using the phase inversion method. The membrane design was optimized using response surface methodology (RSM). The fabricated membrane was effectively applied for the filtration of stabilized leachate using a cross-flow ring (CFR) test. The findings suggested that the filtration properties of fabricated membrane were effectively enhanced through the incorporation of PAC. The optimum removal efficiencies by the fabricated membrane (14.9 wt.% PVDF, 1.0 wt.% PAC) were 35.34, 48.71, and 22.00% for COD, colour and NH3-N, respectively. Water flux and transmembrane pressure were also enhanced by the incorporated PAC and recorded 61.0 L/m2·h and 0.67 bar, respectively, under the conditions of the optimum removal efficiency. Moreover, the performance of fabricated membranes in terms of pollutant removal, pure water permeation, and different morphological characteristics were systematically analyzed. Despite the limited achievement, which might be improved by the addition of a hydrophilic additive, the study offers an efficient way to fabricate PVDF-PAC membrane and to optimize its treatability through the RSM tool.

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Section: Pure Flux and Transmembrane Pressure Studiesmentioning

confidence: 93%

A New Polyvinylidene Fluoride Membrane Synthesized by Integrating of Powdered Activated Carbon for Treatment of Stabilized Leachate

Abuabdou

Jaffari

et al. 2021

Water

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“…In essence, the bonding between the two forms of adsorption varies. Van der Waals forces of attraction among the adsorbent and adsorbate produced physical bonding in the process of physisorption; meanwhile, adsorbate and adsorbent in chemisorption were attracted to one another with force comparable to chemical bonding [36].…”

Section: Adsorptionmentioning

confidence: 99%

Physicochemical Technique in Municipal Solid Waste (MSW) Landfill Leachate Remediation: A Review

Aziz

Ramli

Hung

2023

Water

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Leachate generation is among the main challenging issues that landfill operators must handle. Leachate is created when decomposed materials and rainwater pass through the waste. Leachate carries many harmful pollutants, with high concentrations of BOD, COD, colour, heavy metals, ammoniacal nitrogen (NH3-N), and other organic and inorganic pollutants. Among them, COD, colour, and NH3-N are difficult to be completely eliminated, especially with a single treatment. They should be handled by appropriate treatment facilities before being safely released into the environment. Leachate remediation varies based on its properties, the costs of operation and capital expenditures, as well as the rules and regulations. Up until now, much scientific and engineering attention was given to the development of comprehensive solutions to leachate-related issues. The solutions normally demand a multi-stage treatment, commonly in the form of biological, chemical, and physical sequences. This review paper discussed the use of contemporary techniques to remediate landfill leachate with an emphasis on concentrated COD, colour, and NH3-N levels with low biodegradability that is normally present in old landfill or dumping grounds in developing countries. A semi-aerobic type of landfill design was also discussed, as this concept is potentially sustainable compared to others. Some of the challenges and future prospects were also recommended, especially for the case of Malaysia. This may represent landfills or dumpsites in other developing countries with the same characteristics.

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“…Large volume of POME can be a threat to the environment if released directly, therefore, effective treatment system like anaerobic digestion is recommended to reduce the organic matter in POME [12]. Meanwhile, the production of palm oil also produces a great amount of oil palm biomass waste which then incinerated to support the power plant creating ash known as palm oil fuel ash (POFA) [4,5]. The amount of POFA is massive and worrisome as every ton of crude palm oil produces around 9 tons of biomass that burnt into ash [4].…”

Section: Introductionmentioning

confidence: 99%

“…The amount of POFA is massive and worrisome as every ton of crude palm oil produces around 9 tons of biomass that burnt into ash [4]. Usage of POFA in wastewater treatment as adsorbents are most favored due to its low operation cost and efficient removal of inorganic water contaminants [5]. Activated POFA materials have been also used to remove heavy metals like mercury up to 91.18% within 5 h from industrial wastewater, as well as COD, color and ammonia removal up to 59%, 25% and 17% respectively [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…For POFA sample, the absorption bands take place at 3434, 1426, 1074, 796 and 463 cm -1 . Peaks at 3428 cm -1 (TPOFA) and 3434 cm -1 (POFA) may indicate the presence of OH group (hydroxyl group)[5]. The peak at 1426 cm -1 for both samples might attribute to the carbonate ions (O-C-O), as well as the sharp peaks at 469 cm -1 (TPOFA) and 463 cm -1 (POFA) might be resulted from the symmetric and asymmetric stretching of Si-O-Si bonding.…”

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confidence: 99%

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Anaerobic digestion of palm oil mill effluent (POME) and impact of incorporation with palm oil fuel ash (POFA)

Soo,

Wong,

Bashir

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Anaerobic digestion is a favourable technology for the treatment of palm oil mill effluent (POME) and production of biogas. Biological treatment using an anaerobic batch reactor (ABR) augmented with palm oil fuel ash (POFA) was implemented to investigate the impact of POFA on their performances. Two ABRs are fabricated in this study: Control and POFA ABRs, where POFA ABR was operated at 2g/L of pre-treated POFA with potassium hydroxide (KOH) to increase its porosity. Both reactors are kept at room temperature and a daily feed with neutralized raw POME. Treated samples were collected daily to test for chemical oxygen demand (COD) and pH, whereas weekly tests for mixed liquor volatile suspended solids (MLVSS). Results showed that the control ABR is able to reduce up to 94.4% of COD as compared to the POFA added ABR with only 63.3% in 50 days. The addition of POFA into the anaerobic digestion resulted in lower performance in terms of COD removal efficiency by 20.5%. Economic analysis evidenced that with 85,500 m3 of POME, up to 863 tons of biomethane can be produced, showing a large amount of energy can be utilized from the anaerobic digestion of POME as an alternative energy source.

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Adsorptive treatment of stabilized landfill leachate using activated palm oil fuel ash (POFA)

Cited by 8 publications

References 22 publications

A New Polyvinylidene Fluoride Membrane Synthesized by Integrating of Powdered Activated Carbon for Treatment of Stabilized Leachate

A New Polyvinylidene Fluoride Membrane Synthesized by Integrating of Powdered Activated Carbon for Treatment of Stabilized Leachate

Physicochemical Technique in Municipal Solid Waste (MSW) Landfill Leachate Remediation: A Review

Anaerobic digestion of palm oil mill effluent (POME) and impact of incorporation with palm oil fuel ash (POFA)

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