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All Journal Jurnal Rekayasa Proses Reaktor JURNAL INTEGRASI PROSES IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Journal of Science and Applicative Technology Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring Jurnal Rekayasa Proses International Journal for Educational and Vocational Studies JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) International Journal of Engineering, Science and Information Technology Jurnal Pengabdian Kepada Masyarakat Abdi Putra Chemical Engineering Journal Storage (CEJS) Jurnal Teknologi Kimia Unimal Jurnal Malikussaleh Mengabdi Jurnal Rekayasa Proses Jurnal Bahan Alam Terbarukan

Meriatna Meriatna

Universitas Malikussaleh

Author-ID : 2637008

Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Title

Oyster Shell Waste (Crassostrea Gigas) as A Cheap Adsorbent for Adsorption Of Methylene Blue Dyes: Equilibrium and Kinetics Studies Muhammad Muhammad; Meriatna Meriatna; Nia Afriani; Rizka Mulyawan
International Journal of Engineering, Science and Information Technology Vol 1, No 4 (2021)
Publisher : Master Program of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

In this study, Oyster (Crassostrea gigas) shell powder which contains calcium carbonate (CaCO3) was converted into calcium oxide (CaO). The Oyster shell powder that had been activated was utilized for the adsorption of the methylene blue (MB) dyeing material, which is one of waste water concerns. Oyster shells were crushed and sieved into 100 mesh sized powder and then calcinated at a temperature of 600℃ and 800℃ both for 4 hours period. To determine the adsorption equilibrium, methylene blue (MB) solution was used with varying concentration from 10 to 50 mg/L in which the adsorbent weighing 3 g was put into a conical flash and shaken until the adsorption equilibrium was reached. As for the adsorption kinetics, 250 mL MB solution was used with initial concentrations of 10, 20 and 30 mg/L, with an adsorbent weight of 3 g and a solution at pH 11 for each concentration. The evaluation of the experimental data from the adsorption process is well explained by the Freundlich equation, with the correlation coefficient value (R2) found to be 0.9999, where the value of the adsorption intensity (n) is close to unity; this shows that the adsorption is multilayer or in other words the adsorption energy is heterogeneous. The kinetics study also shows that pseudo second-order model is the most applicable to the adsorption process. From the pseudo-second-order model, with the correlation coefficient between 0.9984 - 0.9999 can explain that the methylene blue (MB) adsorption process is chemically based sorption or in other words termed as chemisorption.

Methyl Orange Absorption Using Chitosan from Shrimp Skin as an Adsorbent Meriatna Meriatna; Sanda Mulia Utari; Rizka Mulyawan; Muhammad Muhammad; Zulmiardi Zulmiardi
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.431

In the coloring process, the textile industry generally uses synthetic (artificial) dyes, methyl orange (MO). In this study, the adsorption of methyl orange (MO) dye with chitosan was investigated in a series of batch laboratory studies. The adsorption equilibrium study used a MO solution with a concentration of 10 to 50 mg/L with an adsorbent weight of 3 g put into an Erlenmeyer and shaken until the adsorption reached an equilibrium condition. Meanwhile, the adsorption kinetics used a MO solution with an initial concentration of 10 and 20 mg/L with a volume of 100 mL with an adsorbent weight of 3 g and the solution was adjusted to pH 2. Effective operating parameters such as pH, initial concentration of dye (C0) and contact time at adsorption has been investigated. The results showed that the adsorption capacity of methyl orange (MO) dye from chitosan increased with an increasing acid content, and it was found that a solution of pH 2 was the optimal pH value for MO adsorption. The adsorption parameters for the Langmuir and Freundlich isotherms were determined by nonlinear regression and the equilibrium data were best explained by the Langmuir isotherm model, this was indicated by the high value of the correlation coefficient (R2), which was 0.9595. The maximum adsorption capacity was 0.1297 mg/g. Adsorption kinetics can be successfully applied to pseudo second-order kinetic models. The pseudo second-order model results show that the adsorption process is controlled by chemical sorption (chemisorption).

Study of Adsorption of Lead Metal (Pb) Using Chemically Acti-vated (Nypa Fruticans) Powder Biosorbent Meriatna Meriatna; Lukman Hakim; Masrullita Masrullita; Zulmiardi Zulmiardi; Suri Atika
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.443

Heavy metal contamination in the environment is now quite concerning, and it is hazardous if it enters the body. Continuous human interaction with heavy metal lead (Pb) will result in various health problems. Nipa palm is a palm (Palma) thrives in mangrove forest habitats or along the seashore, with a cellulose content of 35.1%, 26.4% hemicellulose, and 17.8% lignin. This research aims to see if palm fronds (Nypa fruticans) can be used as a biosorbent to remove the heavy metal Pb in artificial solutions. The analysis was carried out in phases, beginning with the creation of biosorbents from Nipah fronds by decreasing their size to powder and drying them in the sun, followed by analyzing the efficacy of the biosorbents and the number of functional groups using the FTIR instrument. The research was carried out by varying the particle size of the nipa palm frond adsorbent, namely 40, 60, and 80 mesh, as well as contact times of 30, 60, 90, and 100 minutes, to determine the level of adsorption absorption and the adsorption mechanism using the Langmuir and Freundlich isotherm equation approach. The Pb solution used had a concentration of 20 ppm. The results showed that the maximum metal absorption level was 99.29% at a particle size of 80 mesh with a contact time of 100 minutes. The absorption mechanism is close to the Langmuir isotherm equation with R2 = 0.9998. It is suspected that the adsorption process occurs in one layer (monolayer) of the adsorbent.

Synthesis Carboxyl Methyl Cellulose (CMC) from Rice Straw (Oryza Sativa L.) Waste Masrullita, Masrullita; Nurlaila, Rizka; Zulmiardi, Zulmiardi; Safriwardy, Ferri; Auliani, Auliani; Meriatna, Meriatna
International Journal of Engineering, Science and Information Technology Vol 2, No 1 (2022)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Rice straw is one of material containing cellulose to produce Carboxymethyl Cellulose (CMC). CMC is a non toxic polysaccharide that produces from cellulose that widely used in the pharmaceutical, food, textile, detergent, and cosmetic products industries. There are two stages usually use to produce CMC which are mercerization and esterification processes. Rice straw waste is one of the materials to produce CMC, it has a cellulose content of 37.7%, hemi-cellulose 21.99%, and lignin 16.62 %.Â BPS Aceh shown that the total rice harvested area was 310.01 hectares, with a total production of 1.71 million tons, and rice produced at 982.57 thousand ton. This study aims to reduce waste and environmental pollution caused by rice straw and collects information of rice straw as a basic material to produce of carboxymethyl cellulose and to increase the economic value of rice straw.Â The effects of various wieght parameters sodium monochloroacetate on chemical properties of CMC that produce from rice straw were investigated in this research. Rice straw was collected from a rice field in Nisam, North Aceh. The research conducted by synthesizing 5 grams rice straw for 5.5 hours using NaOH and Sodium Monochloroacetate solutions. With variations weight of sodium monochloroacetate are 5,6,7,8 and 9 grams. The characterization of CMC was carried out by Fourier Transform Infrared (FTIR), CMC yield, DS, Viscosity, water content, pH. The result shows that addition of sodium monochloroacetate was significant factors influence the chemical properties on CMC. The CMC that produced in this study achieved to National Indonesia Standard (SNI).

Application of Pisang Awak Bunch-Derived Heterogenous Base Catalyst in Transesterification of Palm Oil into Biodiesel Meriatna, Meriatna; Zulmiardi, Zulmiardi; Suryati, Suryati; Sulhatun, Sulhatun; Dina Nasution, Zukhrufi; Rahmadhani, Rahmadhani
International Journal of Engineering, Science and Information Technology Vol 2, No 1 (2022)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Biodiesel is an alternative fuel for diesel machine comprosied of alkyl monoesters deriving from vegetable oils or animal fats. Cooking oil is an oil originated from vegetable or animal fat which has been priorly purified, where it appears in liquid form at room temperature and is usually used to fry food ingredients. Heterogenous catalyst is a catalyst present in different phase with the reagent in a reaction it catalyzes. Kalium content in banana in a banana bunch is sufficiently high reaching 94.4%. The aim of this study was to utilize banana bunch which has been priorly ashed using furnace at 700Â°C for 4 hours, thereafter, applied as a heterogenous catalyst in a the preparation process of biodiesel from cooking oil. Processing variables investigated in this research included the influences of the number of catalyst (3, 4, 5, 6, and 7%) and molar rasio of oil and methanol (1:5, 1:6, 1:7, 1:8, and 1:9) against the properties of produced biodiesel, namely density, viscosity, and water content which later compred with Indonesian standard (SNI). From the study, it was obtained maximum yield of 90.97% with methanol:oil rasio of 1:7 at processing temperature of 60Â°C with reaction time of 90 minutes and catalyst as much as 3 % w/w. The characteristics of the cooking oil-based biodiesel obtained from the a reaction with oil: methanol rasio of 1:6 and catalyst as much as 3% w/w were density 850 kg/m3 and viscosity 621 mm2/s. This research showed that the obtained biodiesel characteristics had been sufficient according to the SNI, and the use of calcinated banana bunch was very potential in the production of biodiesel acting as solid catalyst person.

Preparation and Characterization of Chitosan-Gelatin-Glycerol Biocomposite for Primary Wound Dressing Suryati, Suryati; Meriatna, Meriatna; Sulhatun, Sulhatun; Lestari, Dwi Ayu
International Journal of Engineering, Science and Information Technology Vol 2, No 1 (2022)
Publisher : Malikussaleh University, Aceh, Indonesia

This study aimed to examine the laboratory-based preparation of chitosan-gelatin bio-composite with the addition of glycerol as an additive to improve its quality which could be further applied for primary wound dressing. The method consisted of three stages; the first was the preparation of raw materials, the second was the preparation of the bio-composites, and the last was the characterization. In this study,chitosan 90.2% DD and gelatine (dissolved in 1% acetic acid) were blended at volume ratios v/v (30:70), and glycerol was added into blended at five different volume 20, 25, 30, 35, 40, 45 (mL) respectively. The biocomposites is then shaped in a glass mold, allowed to at room temperature for 24 hours, and dried in oven at 50oC for 48 hours. The chitosan-gelatin-glycerol bio-composites was smooth, flexible, transparent thin sheet and non-porous. The optimum thickness (4.01 mm) was obtained from a bio-composite with chitosan-gelatin-glycerol ratio of 30:70:45. The same composition rasio was found to have the liquid absorbance reaching 140.34%. The bio-composite with a chitosan-gelatin-glycerol ratio of 30:70:45 also had the highest swelling ability in saline (168.06%). The functional group analysis using Fourier Transform Infrared (FT-IR) spectroscopy revealed the possession of hydroxyl (O-H) and carbonyl (C-O) functional groups suggesting its good biodegradability and environmentally friendly properties. Taken altogether, the results imply the wound dressing bio-composite is hydrophilic. Based on the results of characteristic testing, it is shown that the chitosan-gelatin-glycerol biocomposite has the potential to be applied as a primary wound dressing, which is ideal for wound healing and protection.

Compositional Engineering of Chitosan–Potato Starch–Kaolin Biocomposites: Tuning Physicochemical Properties for Wound Dressing Applications Suryati, Suryati; Mulyawan, Rizka; Meriatna, Meriatna; Khairunnisa, Cut; Maulinda, Leni; Hasfita, Fikri
International Journal of Engineering, Science and Information Technology Vol 5, No 3 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i3.1001

An investigation has been made to predict the effects of various Kaolin fillers with different concentrations from 4 to 10 percent on the properties of Chitosan and Potato Starch Bio-composite for wound dressing applications. The procedure was to prepare the chitosan and starch in equal proportions, apply the filler to the hydrogel, dry it, and characterize it. The characterizations of the synthesized bio-composite were its absorption percentage, mechanical test, presented functional groups, and antibacterial test. It was found out that the bio-composite with the highest swelling percentage 6% Kaolin, showed 128.65% swelling. Moreover, the highest percentage of bio-composite absorption was 65.62% with 8% Kaolin added. In addition to that, adding 4% Kaolin produced the highest tensile strength with the value of 75.6 MPa. Besides, the most significant elongation percentage was 151.60% in the addition of 4% Kaolin. Qualitatively, the synthesized bio-composites exhibited functional groups of OH, alkynes, and carboxylic acid. Finally, the bio-composite with Kaolin filler significantly performed in antibacterial activities.

Optimization Study Of Time And Mass Of Ketapang Fruit Shell Biosorbent in the Methylene Blue Batch Adsorption Process Meriatna, Meriatna; Zulmiardi, Zulmiardi; Nurlaila, Rizka; Suryati, Suryati; Hasfita, Fikri; Faisal, Faisal
International Journal of Engineering, Science and Information Technology Vol 5, No 3 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i3.1000

Ketapang fruit shell (Terminalia catappa) has shown potential as a low-cost, eco-friendly biosorbent for removing synthetic dyes from aqueous solutions. This study aimed to determine the optimum conditions for contact time and adsorbent mass of ketapang fruit shell in the adsorption of methylene blue dye. The research involved several stages: preparation and chemical activation of the fruit shells, batch adsorption experiments, analysis of adsorption capacity and efficiency, and optimization using the Response Surface Methodology (RSM). Characterization of the adsorbent was conducted using UV-Visible spectroscopy, Fourier Transform Infrared (FTIR) spectrosco-py, and Scanning Electron Microscopy (SEM) to analyze functional groups and surface morphology. The RSM approach was employed to evaluate the interaction effects of contact time and adsorbent mass, as well as to predict the optimal conditions for maximum dye re-moval. The optimum adsorption conditions were achieved at a contact time of 39.15 minutes and adsorbent mass of 0.416 g, resulting in an adsorption capacity of 1.935 mg/g and 100% removal efficiency. The regression model obtained from RSM was: Y= 35.13437 + 334.35597A – 1.67299B + 0.088354AB – 402.98656A² + 0.018207B², with a coefficient of determination R² = 0.7857 (78.57%), indi-cating a good model fit. Furthermore, the adsorption behavior followed the Freundlich isotherm model, supported by an R² value of 0.787 (78.7%), suggesting multilayer adsorption on a heterogeneous surface. These findings confirm the effectiveness of ketapang fruit shell as a promising adsorbent for methylene blue removal in wastewater treatment applications.

Co-Authors AA Sudharmawan, AA Abrar, Muhammad Ifan Abubakar Dabet Adriyan Jondra Afifa Luthfia Agam Muarif Ahmad Alwi Hasibuan Alifnur Alifnur Amri Aji Amri Aji, Amri Amri Amri Ananda, Dhea Riski Andrie Kurniawan Indra Anisma Fahmi Anisyah Padang Anita Sari Ferani Annisa Aulia ARDIANSYAH ARDIANSYAH Ariski Saina Ariski Saina Asnadia Asnadia Aulia Fahri Aulia, Muhammad Rifki Aulia, Yeni Auliani Auliani Auliani Auliani, Auliani Ayu Sutia Amanda Azhari Azhari Azhari Azhari Chairunnisa Chairunnisa Chalisna Wildani Cut Khairunnisa Cut Mauliza Utary Daud, Eva Darnila Dina Nasution, Zukhrufi Dion Aidil Putra dwi ayu lestari, dwi ayu Eddy Kurniawan Edy Kurniawan Efri Marnelisa Eka Intan Kumala Putri Eka Sri Astuti Eni Suryani Eva Diana Evana Evana Faisal Faisal Faisal Faisal Fajar Sidiq Seregar fatimah Fatimah Fatnia, Fatnia Ferri Safriwardy Fibarzi, Wiza Ulfa Fikri Hafita Fikri Hasfita Fitria, Lisa Fitriani Fitriani Frandika Darma Ginting, Ledy Mahara Gusti Indah Sari Hajijah Hajijah Halimah, Mustika Ridhatul Hanie, Nawardah Hanif, Hanif Haslina Haslina Ibrahim, Ishak Iqbal Kamar Iqbal Kamar Ishak Ibrahim Ishak Ishak Ishak Ishak Ishak Ishak Jalaluddin Jalaluddin Jalaluddin Jalaluddin Jalaluddin Kamar, Iqbal Khairunnisa Kurniawan, Meutia Laksita Ika Paksi Leni Maulinda Leni Maulinda, Leni Leni, Maulinda Lidya Permata Lestari Lidya Permata Lestari Lis Ayu Widari, Lis Ayu Lisa Andriani Lukman Hakim Lukman Hakim Lukman Hakim Luthfi Mughni Anisa Haryono Luthfi Mughni Anisa Haryono Lutvia, Faiza Mahyuni Marito Harahap Marlina Marlina Maryana Maryana Maryana Maryana, Maryana Maryanti Maryanti Masrullita Masrullita Masrullita Masrullita, M Masrullita, Masrullita Maulana, Muhammad Zikri Mawaddah Fitria Melan Amanah, Ananda Mhd Azrin Muazzinah Muazzinah Muhammad Fazlunnazar Muhammad Muhammad Muhammad Muhammad Muhammad Safrijal Muhammad Sayuthi Muhammad Zakaria Muhammad, Muhammad Mulyawan, Rizka Munawar Khalil Mutia Sukma Nadia Prisca Putri Nadrakhilla, Yayang Narul ZA Nasrul ZA Nasrul ZA Nasrul ZA, Nasrul Nasution, Fahrizal Nia Afriani Nia Sagita Lestari Novi Sylvia Nur Asiah Indah Rahayu Nurdin Nurdin Nurlaila, Rizka Nurlian Nurlian Nurlian Octaviani Pasaribu Panjaitan, Muhammad Ishak Idrus Pradesti, Salsa Prasatia, Ridha Purwoko, Agus Putri Sara Fhariza R.A Nita Rosalinda Muttaqin Rahma Yanti Rahmadhani, Rahmadhani Raihan Putri Reza Abdillah Harahap Reza Dwi Fani Rianda, Rizki Rina Afriani Rina Lestari Rizka Mulyawan Rizka Mulyawan Rizka Mulyawan Rizka Nurlaila Rozanna Dewi Safriani, Siti Widya Safrida, Riana Safwan Azlani Salim, Muhammad Yahdi Salsabil, Safyra Qathrunnada Samsul Bahri Sanda Mulia Utari Sari, Riska Kumala Sinaga, Ahmad Roihan Sinaga, Selvi Sundari Sinta Morina Sitorus, Ika Pratiwi Berliana Sofiyani, Nurwardina Sofyan Sofyan Sofyan, Diana Khairani Sri Awalin Marpaung Sulahatun, Sulhatun Sulhatun Sulhatun Suri Atika Suryani Suryani Suryati Suryati Suryati Suryati Suryati Suryati Suryati Suryati Syafira Dara Syamsul Bahri Syamsul Bahri Syamsul Bahri Syarifah Yulisa Syukriah Syukriah, Syukriah Tasya Maidayanti Tata Tirani Trisna Trisna, Trisna Ulfa, Raudhatul Veithzal Rivai Zainal Wiza Ulfa Fibarzi Wiza Ulfa Fibarzi Wusnah Wusnah Wusnah, Wusnah Yani, Firda Tirta Yudistira Yudistira Zainuddin Ginting Zulmiardi, Zulmiardi Zulnazri, Z Zuraida Zuraida

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