Effect of time variation of banana (Musa acuminate) leaf waste on lead metal adsorption

Wardani, Gatut Ari; Wulandari, Winda Trisna; Khoirunnisa, Rifa; Ningsih, Widar Rahayu

doi:10.1063/1.5082513

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…The imperfect carbonization process caused the low iodine number. The results of the iodine number were in accordance with research that activated carbon from banana stems has an iodine number value below the specified minimum limit (15).…”

Section: Characterization Test Of Banana Stem Activated Carbonsupporting

confidence: 88%

Adsorption Kinetics of Banana Stem Activated Carbon in Reducing Phosphate Levels

Namira Kholifatul Pramudinta,

Lilis Sulistyorini,

Iva Rustanti Eri W

2024

JKL

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Introduction: High levels of phosphate in water are caused by wastewater pollution such as laundry waste water causing eutrophication. Adsorption is a method that can be used to reduce phosphate level. Banana stem that contains high levels of cellulose can be used as the main ingredient for making activated carbon. The aims of this study were to analyze the adsorption capacity and adsorption kinetics of banana stem activateld carbon in relducing phosphatel lelvells. Methods: The design of this research was true experiment with a pretest-posttest controlled group. Adsorption process was carried out with batch method that used three variations of adsorbate concentration and four variations of mixing time. Adsorption took place at pH 3 and 30 rpm of mixing time. Adsorption capacity was analyzed using the Langmuir isotherm and Freundlich isotherm models. Adsorption kinetic was analyzed using pseudo-first-order and pseudo-second-order kinetic models. Results and Discussion: The X-Ray Diffraction (XRD) difactogram and Scanning Electron Microscopy (SEM) results prove that the activateld carbon was successfully made. The iodine number of banana stelm activateld carbon was 698.12 mg/g. The results showed that activated carbon from banana stem successfully reduced phosphate levels in water with adsorption capacity 0.10708 mg/g and following the Langmuir isotherm model. The kinetics adsorption of banana stem activated carbon was validated by the pseludo-selcond-ordelr kinetics model with a kinetics constant of 0.17137 g/mg.min. Conclusion: The Langmuir models indicated that adsorption of phosphate occurred in monolayer. Modifications of activated carbon were needed based on characterization results.

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Section: Characterization Test Of Banana Stem Activated Carbonsupporting

confidence: 88%

Adsorption Kinetics of Banana Stem Activated Carbon in Reducing Phosphate Levels

Namira Kholifatul Pramudinta,

Lilis Sulistyorini,

Iva Rustanti Eri W

2024

JKL

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“…Therefore, smaller peaks at 1,115.83 and 771.08 cm −1 for control sample can be predictable. Finally, the smaller peak of the control sample at 2,124.94 cm −1 can indicate the breaking a triple bond (alkyne) into a single bond (alkanes) (Wardani, Wulandari, Khoirunnisa, & Ningsih, ). It can be due to the lack of the protective effect of the coating pretreatment during the drying process of banana slices.…”

Section: Resultsmentioning

confidence: 99%

Influence of coating pretreatment with carboxymethyl cellulose in an electrohydrodynamic system on convective drying of banana slices

Dehsheikh

Dinani

2019

J Food Process Engineering

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For the first time, a carboxymethyl cellulose (CMC) coating pretreatment was used in an electrohydrodynamic (EHD) system to produce convectively dried banana slices with improved quality and nutritional attributes. To this end, the impacts of the sample to CMC solution ratio (S:CSR) parameter at two levels of 1:1 and 1:2 and the EHD voltage parameter at four levels of 0, 16, 18, and 20 kV were investigated. The results showed that an increase in the EHD voltage from 0 to 20 kV significantly increased the water absorption capacity (WAC) (117.86%) and the total phenolic content (TPC) (20.83%) of the dried banana slices and significantly reduced their total energy consumption (SE Total ) (30.03%), the drying time (27.9%), the shrinkage (74.52%), the shear stress (SS) (76.48%), and the total color difference (ΔE) (78.74%).Moreover, an increase in the S:CSR from 1:1 to 1:2 significantly reduced the shrinkage (20.62%), the SS (21.93%), and ΔE (33.02%) of the dried banana slices and significantly increased their WAC (24.40%) and TPC (16.88%). Practical applicationsAccording to the results obtained in this study, carboxymethyl cellulose coating pretreatment in an EHD system can be introduced as an innovative and practical pretreatment technique for production of convectively dried products. This approach improves both the quality indexes and nutritional attributes while increasing the performance of the convective drying process.

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“…Hasil Pengaruh Variasi Waktu Pengadukan terhadap Adsorpsi Logam Kadmium (pH=3; massa=1,5 gram) Variasi waktu yang diamati pada penelitian ini yaitu 10, 20, 30, 35 dan 45 menit (Gambar 1). Dasar pemilihan variasi waktu 10 menit ditentukan sebagai titik awal pengamatan karena pada penelitian yang telah dilakukan sebelumnya oleh Mohd Salim et al, (2016); Wardani & Wulandari (2018), dimana bahwa pada waktu pengadukan dibawah 10 menit diperoleh tingkat adsorpsi masih rendah, yaitu berkisar 40% karena diperkirakan adsorben belum sepenuhnya berinteraksi dengan adsorbat.…”

Section: Hasil Dan Pembahasan Pengaruh Variasi Waktu Pengadukanunclassified

Adsorpsi Logam Kadmium dalam Limbah Cair Buatan Menggunakan Biosorben Kulit Pisang Mas (Musa acuminate colla)

Arifiyana¹,

Wardani²

2021

Rekayasa

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Mas banana (Musa acuminata Colla) peel is a type of household waste as well as agricultural waste whose utilization still needs to be improved. In addition, among various types of heavy metals that are dangerous as contaminants in the environment, cadmium metal is a metal that is very dangerous to health even in very small amounts. Therefore, this study aims to not only utilize the waste of Mas banana peel (Musa acuminata Colla) as a biosorbent, but also to determine the optimum conditions needed to reduce cadmium metal which involves several test parameters, namely stirring time, pH and mass of biosorbent. Variations of stirring time used include 10, 20, 30, 35, and 45 minutes; variations in pH used include 1, 2, 3, 4, and 5, while variations in the mass of biosorbent used include 0.5; 1; 1.5; 2 and 2.5 grams. The results showed that the optimum conditions were obtained at a mixing time of 35 minutes, pH 5, and a mass of 2 grams of biosorbent with a reduction percentage value of 78.45%. This percentage indicates that Mas banana peel can be used as a natural adsorbent for cadmium metal. In addition, the results of the FT-IR analysis of the Mas banana peel biosorbent showed that Mas banana peel has a functional group that plays a role in the heavy metal adsorption process

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Effect of time variation of banana (Musa acuminate) leaf waste on lead metal adsorption

Cited by 3 publications

References 6 publications

Adsorption Kinetics of Banana Stem Activated Carbon in Reducing Phosphate Levels

Adsorption Kinetics of Banana Stem Activated Carbon in Reducing Phosphate Levels

Influence of coating pretreatment with carboxymethyl cellulose in an electrohydrodynamic system on convective drying of banana slices

Adsorpsi Logam Kadmium dalam Limbah Cair Buatan Menggunakan Biosorben Kulit Pisang Mas (Musa acuminate colla)

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