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Isra Mouludi
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INDONESIA
REACTOR : Journal of Research On Chemistry And Engineering
Published by Politeknik ATI Padang
ISSN : -     EISSN : 27460401     DOI : -
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Energy
1. Bioenergy 2. Waste Treatment 3. Simulation and control process 4. Advanced materials 5. Bioengineering (chemical & massa) 6. Bioprocess 7. General chemistry 8. Applied chemistry 9. Biochemical 10. and other as problem solving in the field of environment, energy, food, agriculture, medical and pharmacy
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 121 Documents
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Analisis Pengendalian Kebisingan Melalui Pemetaan Untuk Mengurangi Paparan Populasi di Area Pelabuhan Batu Ampar Kota Batam Viqri, Ahmad; Indah, Shinta; Bachtiar, Vera Surtia
REACTOR: Journal of Research on Chemistry and Engineering Vol. 4 No. 1 (2023)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v4i1.88

Abstract

Batu Ampar Port is the largest loading and unloading port of the three existing loading and unloading port facilities in Batam and the largest port for manufactured goods used by companies to supply the industrial sector in Batam. In addition to having a positive impact, the Batu Ampar port also has a negative impact in the form of a decrease in environmental quality, especially the noise level generated by activities in the Batu Ampar Port area. In this study the noise sampling process used the Svantek tool, sampling was carried out for 24 hours with a time limit of 24 intervals, then sampling was carried out for 10 minutes at each time interval. The research results obtained were that from all sampling points the highest noise was in the East Pier area of 70 – 78.5 dB(A) at 08:00 – 23:00 WIB. While the area with the lowest noise level is in the BPJS flat area of 54.7 – 73.5 dB(A) at 06:00 – 05:00 WIB. It can be concluded that many of the noise values obtained exceed the quality standards in accordance with Kepmen LH No. 48 of 1996. This was due to several factors, namely loading and uploading of very dense containers which resulted in more and more work activities. Noise elimination measures in the Batu Ampar port area are important to do considering the results of noise measurements still exceed the quality standards, Barriers are one of the technologies that can be applied to reduce noise in the Batu Ampar port, Batam, both natural and artificial barriers, so the Batu Ampar port noise problem can be solved
Pengaruh Variasi Prekursor Terhadap Morfologi dan Aktivitas Antibakteri Nanopartikel Tembaga Menggunakan Reduktor Ekstrak Daun Gambir Elisma, Netri; Emriadi , Emriadi; Darmawi, Ahmad
REACTOR: Journal of Research on Chemistry and Engineering Vol. 4 No. 2 (2023)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v4i2.109

Abstract

Research on synthesis copper nanoparticles has been carried out by the reduction method with a green synthesis approach using extracts of gambir leaves (Uncaria gambir Roxb). Gambir leaf extract contains polyphenol compounds uses as a natural reducing agent to reduce copper cation from variations of prekursor (CuSO45.H2O, Cu(NO3)2.3H2O and CuCl2.2H2O). The formation of copper nanoparticles (CuNP) colloid is visually shown by color change from light brown to dark brown. Absorption peak in UV-Vis spectrophotometer analysis at 405 -427 nm which is a specific wavelength of copper nanoparticles base on phenomenon of Surface Plasmon Resonance (SPR). The X-Ray Diffraction (XRD) analysis showed formation of CuNP with a face centered cubic (fcc) crystal structure. The result of Transmission Electron Microscope show the synthesized CuNP was spherical with particle size diameter 15nm for CuSO4 prekursor, 25 nm for Cu(NO3) prekursor and 28 nm for CuCl2 prekursor. The size of nanoparticles influenced of type prekursor anions. The antibacterial activity of the synthesized nanoparticles was also tested using pathogenic bacteria Escherichia coli and Staphylococcus aureus. The results showed that copper nanoparticles were promising antibacterial agents. Antibacterial activity test on copper nanoparticles were found to have higher antibacterial activity against Gram positive bacteria S. aureus than Gram negatif E. coli.
Optimasi Konsentrasi NaCl dan Waktu Inkubasi terhadap Kandungan Asam Amino dan Total Padatan Terlarut pada Cacing Tanah (Lumbricus rubellus) dalam Reaktor Anaerob Hanifah, Windia; Ningrum, Sri Rahayu Widya; Junaidi, Edi
REACTOR: Journal of Research on Chemistry and Engineering Vol. 6 No. 1 (2025)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v6i1.19

Abstract

In Indonesia, earthworms specifically Lumbricus rubellus are generally underutilized, often used only as fishing bait and not yet fully optimized for their potential as a protein source. This study aimed to optimize the extraction of protein from Lumbricus rubellus using variations in NaCl concentration and incubation time. The extraction process was conducted using the Response Surface Methodology (RSM) with a Central Composite Design (CCD), involving two independent variables: NaCl concentration (3%, 6%, and 9%) and incubation time (24, 48, and 72 hours). The measured responses were dissolved protein, total dissolved solids (TDS), and pH of the extract. The results showed that the optimal condition for protein extraction was at 3% NaCl concentration and 24 hours of incubation, yielding the highest level of dissolved protein. The highest TDS was recorded at 45.5 ppm under the condition of 9% NaCl and 24-hour incubation, while the lowest TDS was 34.3 ppm at 9% NaCl and 72 hours. The pH values ranged from 4.18 to 4.47, with the highest pH observed at 3% NaCl and 24 hours. These findings demonstrate that both NaCl concentration and incubation time significantly influence the efficiency of protein extraction from Lumbricus rubellus, with lower concentrations and shorter times generally producing better results.
Pemisahan Butanol dari Campuran ABE Menggunakan Software Aspen Plus: Pengaruh Refluks Rasio terhadap Kandungan Butanol Nury, Dennis Farina; Febriyanto, Pramahadi; Ismi, Lisa Anggraini; Hidayah , Rahmat Taufik
REACTOR: Journal of Research on Chemistry and Engineering Vol. 3 No. 1 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v3i1.43

Abstract

Production of acetone-butanol-ethanol (ABE) through the fermentation process is one alternative that needs to be developed. Less economical in the ABE fermentation process is the difficulty of the separation process from the fermentation product and the by-products of the reaction. Among the separation process methods, such as extraction, distillation, adsorption, and gas stripping, the distillation method is still the most widely used method in the ABE separation process. The purpose of this study was to provide recommendations for predicting good ABE separation and producing optimum operating conditions to produce high % butanol content. Which is then simulated using Aspen Plus V11 software. This study varied the reflux ratio in the distillation column and the decanter operating temperature. The results showed that butanol purity reached 90.33% in the radfrac 1 column operated at a pressure of 1.3 atm with a reflux ratio of 5, the location of the 7th feed stage and the number of stages 11. Then proceed to the purification stage in the radfrac column 2 which is operated at a pressure of 2 atm with a reflux ratio of 5, the location of the 4th stage feed and the number of stages 5. The decrease in the reflux ratio of the radfrac column causes a decrease in the butanol content at the bottom so that the purity of butanol also decreases and decreases % recovery or recovery of butanol. This is also followed by the location of the feed stage, which is getting higher, and the number of stages is increasing.
Sintesis Zn-BDC dengan Metode Sonokimia dan Aplikasinya Pada Proses Adsorpsi Ion Logam Pb2+ Abdilah, Fauzi; Hulupi, Mentik; Keryanti, Keryanti; Nabilah, Nida; Nabilah, Tiana Hasana
REACTOR: Journal of Research on Chemistry and Engineering Vol. 3 No. 1 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/

Abstract

The heavy metal ion pollution such as lead (Pb2+) in wastewater is an environmental problem that needs to be solved. The adsorption method has been reported to have good potential as an alternative method for reducing heavy metal contents in aquatic environment. The most widely used adsorbent media are porous materials with a large surface area and low density. Metal Organic Frameworks (MOFs) are a type of porous material that is widely applied in various fields, such as fuel purification, solvent recovery, gas storage, and adsorbents. Lead (II) is a heavy metal ion that can pollute the environment and endanger humans. This study aims to synthesize MOFs and apply it to the Pb2+ adsorption process. In this research, MOFs type Zn-BDC or MOF-5 were synthesized by sonochemistry method at 60 ℃ as adsorbent for Pb2+ ion. Characterization of the adsorbent by FTIR showed the presence of functional groups C=O, C-H, and Zn-O which indicated the formation of the MOF-5 compound. The concentrations of Pb2+ ions were analyzed using Atomic Absorption Spectrophotometer (AAS). The experimental results show the optimum conditions for the adsorption process at pH 5 for 60 minutes with adsorption efficiency reaching 93.41%. Testing the adsorption isotherm model showed that the Pb2+ ion adsorption process using Zn-BDC as an adsorbent followed the Langmuir isotherm model with the R2 value of 0.9986.
Pengaruh Dosis Aluminium Sulfat Terhadap Kekeruhan dan Kadar Besi Air Baku pada IPA PDAM X Simatupang , Dimas Frananta; Saragih , Gimelliya; Siahaan , Martin
REACTOR: Journal of Research on Chemistry and Engineering Vol. 2 No. 1 (2021)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/

Abstract

One of the first steps in processing river water into drinking water is by removing the turbidity of the river water. Turbidity can be removed by adding a chemical called a coagulant. This study aims to obtain data on how the effect of using coagulant dosage variations in reducing turbidity and iron content in raw water at the water treatment plant (IPA) PDAM X. The study was conducted using the jar test method to determine the dose of aluminum sulfate coagulant in reducing turbidity and colorimetric method using visible spectrophotometry to determine iron content that meets quality standard criteria. The results showed that the higher the coagulant dose, the lower the turbidity and iron content of the raw water. Coagulant doses with up to 30 ppm were able to reduce turbidity with an efficiency of 92.67% and reduce iron levels up 96.10%.
Penentuan Acid Value pada Fatty Acid dengan Metode Titrasi Alkalimetri dan Kromatografi Gas Syafrinal , Syafrinal; Renastio , Renastio
REACTOR: Journal of Research on Chemistry and Engineering Vol. 2 No. 1 (2021)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/

Abstract

PT X processes crude palm kernel oil (CPKO) into products such as glycerin, fatty acid, and fatty alcohol. The purpose of this study was to determine the acid value of fatty acid using alkalimetry titration methods and gas chromatography and compare the values obtained with the PT X standard. The results showed that the AV 105 E21 and 105 E22 were following the PT X standard, with ranges respectively 355-365 mg KOH/gr and 268-275 mg KOH /gr. This indicates that the fatty acid samples produced can be sold to consumers.
Pengaruh Doping Ca dan K pada γ-Al2O3 terhadap Sifat Fisik Katalis pada Transesterifikasi Minyak Kelapa Supriadi , Eko; Hadi Prajitno , Danawati; Mahfud , Mahfud; Ngatijo , Ngatijo; Basuki , Rahmat
REACTOR: Journal of Research on Chemistry and Engineering Vol. 2 No. 1 (2021)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/

Abstract

Metal doping plays important role in increasing catalytic activity of catalyst materials. In this work, Ca and K were doped to the γ-Al2O3 by dry impregnation method to study the crystallinity, surface area, activation energy, and yield in the coconut oil transesterification reaction. The success of doping was shown in the characterization of Ca/γ-Al2O3 and K/γ-Al2O3 using X-Ray Diffraction (XRD) which increasing in crystallinity from 62.2% (γ-Al2O3) to 69.3 (K/γ-Al2O3) and 76.0 (Ca/γ-Al2O3). The emerging peak of 2θ characteristics of K (29.70° and 32.65°) and Ca (25.35°, 26.77°, and 27.17°) on the γ-Al2O3 (37.66°, 45.82° and 67.22 °) was also observed. Characterization by the Surface Area Analyzer (SAA) shows that the K/γ- Al2O3 catalyst has a smaller surface area (34.03 m2/g) than Ca/γ-Al2O3 (83.77 m2/g), but a higher pore diameter (66.12 Å) than Ca/γ-Al2O3 (35.22 Å). The K/γ-Al2O3 catalyst produced greater FAME yield (93.19%) than Ca/γ-Al2O3 (29.76%) at a catalyst concentration of 2.5%, reaction time 150 s, and ultrasonic frequency of 40 kHz. The quality of the FAME catalyzed by K/γ- Al2O3 fulfills four test parameters: density, kinematic viscosity, flash point, and pour point according to SNI 04-7182-2006 standards.
Pengaruh Penambahan Gliserin dan Polivinil Alkohol Terhadap Karakteristik Biofoam dari Kulit Singkong dan Daun Angsana Putri , Melysa; Kemala Putri , Dwi; Putri , Alvernia
REACTOR: Journal of Research on Chemistry and Engineering Vol. 2 No. 1 (2021)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/

Abstract

Styrofoam is a petroleum-based and synthetic polymer that is only used once. To reduce waste and environmental damage as well as health problems, this study aims to make Biofoam from cassava peel and angsana leaves using a combination of extrusion and baking methods. In this study, glycerin and polyvinyl alcohol were also added with volume variations, 10: 30 (sample 1), 20 : 20 (sample 2), and 30: 10 (sample 3) mL to improve the physical properties of Biofoam. The physical characteristics observed were color, water content using the gravimetric method, and water absorption capacity of ABNT NBR NM ISO 535. Sample 1 and sample 2 were lighter in color than sample 3. The lowest water content value was found in sample 2, while sample 2 was has the ability to absorb less water is sample 3.
Pengaruh Penambahan Stabilizer Carboxyl Metyl Celulosa dan Tepung Agar terhadap Karakteristik Fisiko Kimia Velva Sirsak Putri , Gustiarini Rika; Samah , Selfa Dewati
REACTOR: Journal of Research on Chemistry and Engineering Vol. 2 No. 1 (2021)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/

Abstract

Fruits are perishable agro materials, so further processing is necessary after the fruit is harvest. Soursop is a fruit dessert with characteristics like ice cream. The purpose of this study was determined the appropriate compotition and agar powder in the manufacture of soursop velva so that a product with physical characteristics such as ice cream. The physical characteristics of soursop velva are total solid, water content, pH, vitamin C, fiber, total acid, melting speed and overrun. The soursop velva research method with six treatments, A (0,4 % CMC added), B (0,5% CMC added), C (0,6% CMC added), D (0,4% agar powder added), E (0,5% agar powder added), F (0,6% agar powder added). Observation were made on the physico-chemical characteristics of soursop velva. The result shows that soursop Velva added with 0,6% agar powder content 24,79% total solid, 75,24% water content, pH 4,30 and 33, 84 mg/100 g material of vitamin C, 2,2% fiber, 2,2% total acid, with 19,69 minutes melting speed and 134,67% overrun.

Page 9 of 13 | Total Record : 121

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