Treatment of Taman Beringin landfill leachate using the column technique

Ashraf, Muhammad Aqeel; Balkhair, Khaled S.; Chowdhury, Ahmad Jalal Khan; Hanafiah, Marlia Mohd

doi:10.5004/dwt.2019.23839

Cited by 18 publications

(9 citation statements)

References 24 publications

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“…Slabbert [59] characterized and identified five metal complexes formed by iron (Fe +2 ), aluminum (Al +3 ), titanium (Ti), and molybdenum (Mo) ions. The metal complexes increased the charged transfer and enhanced the adsorption and deposition of dissolved heavy metals in water [59,60,61,62,63]. The removal of selected heavy metals from leachate under the obtained optimum experimental conditions (tannin dosage 0.75 g, pH 6, 250 rpm for 15 min followed by 60 rpm for 30 min and settling for 30 min) was investigated, and the results are presented in Table 6.…”

Section: Resultsmentioning

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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Section: Resultsmentioning

confidence: 99%

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

et al. 2019

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“…Worldwide, environmental scientists’ focus has been developing efficient and sustainable technologies for water and wastewater management 2 , 21 , 22 . To overcome the shortcomings of more traditional approaches, cheaper and more efficient techniques to improve the quality of treated effluent have been proposed.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, interest in lower-cost alternatives to commercially available activated carbon that would still provide safe and economical methods of removing dyes from contaminated water has increased. For this reason, low-cost by-products of agriculture that able to act as an adsorbent have been recognized as a sustainable solution for wastewater treatment that minimizes waste, recovery, and reuse 6 , 15 , 17 , 21 – 24 , 38 . To support the sustainable option for removing dyes, PAC has been synthesized from rubber seed (RS) and its shell (RSS).…”

Section: Introductionmentioning

confidence: 99%

The removal of anionic and cationic dyes from an aqueous solution using biomass-based activated carbon

Nizam

Hanafiah

Mahmoudi

et al. 2021

Sci Rep

220

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In this study, two biomass-based adsorbents were used as new precursors for optimizing synthesis conditions of a cost-effective powdered activated carbon (PAC). The PAC removed dyes from an aqueous solution using carbonization and activation by KOH, NaOH, and H2SO4. The optimum synthesis, activation temperature, time and impregnation ratio, removal rate, and uptake capacity were determined. The optimum PAC was analyzed and characterized using Fourier-transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), a field emission scanning electron microscope (FESEM), Zeta potential, and Raman spectroscopy. Morphological studies showed single-layered planes with highly porous surfaces, especially PAC activated by NaOH and H2SO4. The results showed that the experimental data were well-fitted with a pseudo-second-order model. Based on Langmuir isotherm, the maximum adsorption capacity for removing methylene blue (MB) was 769.23 mg g−1 and 458.43 mg g−1 for congo red (CR). Based on the isotherm models, more than one mechanism was involved in the adsorption process, monolayer for the anionic dye and multilayer for the cationic dye. Elovich and intraparticle diffusion kinetic models showed that rubber seed shells (RSS) has higher α values with a greater tendency to adsorb dyes compared to rubber seed (RS). A thermodynamic study showed that both dyes’ adsorption process was spontaneous and exothermic due to the negative values of the enthalpy (ΔH) and Gibbs free energy (ΔG). The change in removal efficiency of adsorbent for regeneration study was observed in the seventh cycles, with a 3% decline in the CR and 2% decline in MB removal performance. This study showed that the presence of functional groups and active sites on the produced adsorbent (hydroxyl, alkoxy, carboxyl, and π − π) contributed to its considerable affinity for adsorption in dye removal. Therefore, the optimum PAC can serve as efficient and cost-effective adsorbents to remove dyes from industrial wastewater.

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“…Natural materials such as aquifer sand, peat, and the commercial material (Burgess Iron Removal Media (BIRM)) were evaluated for the treatment of leachate resulted from the Taman Beringin Landfill/ Malaysia using the column tests. The results signified that the BIRM sorbent has a higher adsorption capacity for Fe, Cr, Ni, and Cu compared with aquifer sand and peat [9]. The removal efficiencies of ammonia nitrogen from simulated waste water by waste foundry sand based on 120 batch experiments were modeled by a three-layer artificial neural network technique.…”

Section: Introductionmentioning

confidence: 99%

Using different materials as a permeable reactive barrier for remediation of groundwater contaminated with landfill’s leachate

Faisal¹,

Ali²,

Naji³

et al. 2020

Desalination and Water Treatment

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The present study investigates the utilization of the waterworks sludge by-product that generated from water supply treatment plant for the remediation of simulated groundwater contaminated with leachate spilled from the sanitary landfill by permeable reactive barrier (PRB) technology. Batch sorption experiments were conducted for describing the interaction between the acetogenic phase (pH = 5.5 ± 0.1) of leachate contaminated with cadmium (Cd(II)), ammonia nitrogen (NH 3 -N) or dissolved organic matter (COD) and waterworks sludge. Also, conventional sorbents such as the activated carbon and amberlite ion-exchange resin were tested to evaluate their ability in comparison with waterworks sludge in the remediation process. Results proved that the Langmuir model describes well the sorption data with maximum sorption capacities of 5.634, 14.908 and 3.938 mg/g for Cd(II) onto sludge, NH 3 -N onto resin and COD onto activated carbon, respectively. The batch and column tests signified that the sludge, resin, and carbon can be used for removing Cd(II), NH 3 -N, and COD, respectively. The multi-layered bed of sorbents under consideration has a remarkable ability in the remediation of a leachate contaminated with Cd(II), NH 3 -N, and COD. Finally, the Yan model is more representative than Thomas and Belter models for characterization of the contaminants propagation in the column packed with single sorbent.

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Treatment of Taman Beringin landfill leachate using the column technique

Cited by 18 publications

References 24 publications

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

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

The removal of anionic and cationic dyes from an aqueous solution using biomass-based activated carbon

Using different materials as a permeable reactive barrier for remediation of groundwater contaminated with landfill’s leachate

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