Evaluation of Different Treatment Processes for Landfill Leachate Using Low-Cost Agro-Industrial Materials

Banch, Tawfiq J.H.; Hanafiah, Marlia Mohd; Alkarkhi, Abbas F.M.; Amr, Salem S. Abu; Nizam, Nurul Umairah M.

doi:10.3390/pr8010111

Cited by 22 publications

(13 citation statements)

References 28 publications

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“…According to Sa'at et al [22], I. aquatica can reduce 92.6% of total suspended solids (TSS) and 82.7% of ammoniacal nitrogen (NH 3 -N) from palm oil mill wastewater. C. asiatica is able to trap 100% of TSS from water body and S. molesta's leaves and roots are highly efficient in accumulating and removing pollutants, especially heavy metals [22][23][24]. Akhtar et al [25] stated that E. crassipes and P. stratiotes efficiently removed heavy metals without showing any kind of damage or bad reactions to the metals.…”

Section: Phytoremediation Of Aquaculture Wastewatermentioning

confidence: 99%

“…However, C. asiatica does not possess fibrous roots but effectively reduced TSS because it can be physically and biologically removed through filtration and sedimentation. TSS are trapped and accumulated when passing through the plant roots and eventually sink to the bottom by gravitational force or metabolized by microorganism [23]. The sedimentation process also helps to reduce TSS concentration by 60% in the control tank after 14 days, however, there was an increased TSS concentration for four days due to some disturbance to the tank on day 1 of experiment.…”

Section: Reduction Rate Of Tssmentioning

confidence: 99%

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Efficiency of Five Selected Aquatic Plants in Phytoremediation of Aquaculture Wastewater

et al. 2020

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The lack of clean water sources, due to the presence of pollutants in water, is a major issue in many countries, including Malaysia. To overcome this problem, various methods have been introduced, including phytoremediation treatment. Therefore, this phytoremediation study examined the ability of five aquatic plants—Centella asiatica, Ipomoea aquatica, Salvinia molesta, Eichhornia crassipes, and Pistia stratiotes—to remove three pollutants—total suspended solids (TSS), ammoniacal nitrogen (NH3-N), and phosphate—from aquaculture wastewater. Using wastewater samples, each containing 50 g of one of the plants, the pollutant levels were measured every two days for 14 days. The results showed a drastic decline in the concentration of pollutants, where C. asiatica was able to remove 98% of NH3-N, 90% of TSS, and 64% of phosphate, while I. aquatica showed the potential to eliminate up to 73% of TSS and NH3-N, and 50% of phosphate. E. crassipes drastically removed 98% of phosphate, 96% of TSS, and 74% of NH3-N, while P. stratiotes was able to eliminate 98% of TSS, 78% of NH3-N, and 89% of phosphate. S. molesta was efficient in removing 89.3% of TSS and 88.6% of phosphate, but only removed 63.9% of NH3-N.

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Section: Phytoremediation Of Aquaculture Wastewatermentioning

confidence: 99%

Section: Reduction Rate Of Tssmentioning

confidence: 99%

Efficiency of Five Selected Aquatic Plants in Phytoremediation of Aquaculture Wastewater

et al. 2020

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“…They also bioaccumulate in the food chain and, hence, the human body 3 , 4 . In recent studies, numerous toxic chemicals have been detected in drinking water at dangerous levels in many parts of the world 5 – 14 . The most common toxic pollutants are harmful chemicals and dyes in wastewater produced by heavy industries and other human activities that must be treated before discharged to the environment.…”

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

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239

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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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“…Wastewater is generated from the industrial, domestic, commercial and agricultural sectors [1,2]. Untreated wastewater contains various types of pollutants consisting of organic and inorganic materials with different concentrations [3], depending on the type of human activity that produces the wastewater. The water body can be contaminated when exposed to a high volume of wastewater and high concentration of contaminants [4].…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation of TSS, NH3-N and COD from Sewage Wastewater by Lemna minor L., Salvinia minima, Ipomea aquatica and Centella asiatica

et al. 2020

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The rapid growth of industries has resulted in wastewater generation containing different organic and chemical substances channeled into the water body. This causes the arising of water pollution issues in many regions. The phytoremediation method was introduced in the process of treating water pollution as it is low cost and environmentally friendly. Lemna minor, Salvinia minima, Ipomoea aquatica and Centella asiatica were chosen in this study because they have tolerance to various pollution conditions and are able to remove organic pollutants and heavy metals. The objectives of this study were to determine the water quality before and after treatment, to determine the rate of reduction in total suspended solids (TSS), ammoniacal nitrogen (NH3-N), and chemical oxygen demand (COD) in sewage water through the phytoremediation method and to assess the effectiveness of the plants in the phytoremediation of sewage wastewater. It was found that, Lemna minor, Salvinia minima, Ipomoea aquatica and Centella asiatica were able to reduce TSS by 50.8%, 77.6%, 85.6% and 67.6%, respectively; NH3-N by 80.4%, 89.9, 97.3% and 79.1%, respectively; and COD by 75%, 82%, 44.8% and 36.46%, respectively. In this study, it was found that sewage wastewater treatment using Ipomoea aquatica was more efficient in reducing NH3-N and Salvinia minima was more efficient in reducing TSS and COD values.

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Evaluation of Different Treatment Processes for Landfill Leachate Using Low-Cost Agro-Industrial Materials

Cited by 22 publications

References 28 publications

Efficiency of Five Selected Aquatic Plants in Phytoremediation of Aquaculture Wastewater

Efficiency of Five Selected Aquatic Plants in Phytoremediation of Aquaculture Wastewater

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

Phytoremediation of TSS, NH3-N and COD from Sewage Wastewater by Lemna minor L., Salvinia minima, Ipomea aquatica and Centella asiatica

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