cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Rondang Tambun
Contact Email
rondang@usu.ac.id
Phone
+6281263166850
Journal Mail Official
rondang@usu.ac.id
Editorial Address
Departemen Teknik Kimia, Fakultas Teknik, Universitas Sumatera Utara Jl. Almamater Kampus USU, Medan
Location
Unknown,
Unknown
INDONESIA
Jurnal Teknik Kimia USU
Published by TALENTA PUBLISHER
ISSN : -     EISSN : 23374888     DOI : https://doi.org/10.32734/jtk.v11i1
Core Subject : Science, Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology
Jurnal Teknik Kimia USU merupakan jurnal elektronik yang mempublikasikan karya ilmiah di bidang teknik kimia yang diterbitkan oleh Departemen Teknik Kimia, Fakultas Teknik, Universitas Sumatera Utara. Jurnal ini tidak terbatas pada mahasiswa dan dosen Universitas Sumatera Utara, tetapi terbuka untuk mahasiswa, dosen dan peneliti dari instansi lain.
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol. 10 No. 1 (2021): Jurnal Teknik Kimia USU" : 5 Documents clear
Stabilitas Digester Anaerobik Satu Tahap dalam Produksi Biogas pada Variasi Temperatur Menggunakan Reaktor Batch Bambang Trisakti; Irvan; Desi Berliana Sitompul
Jurnal Teknik Kimia USU Vol. 10 No. 1 (2021): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (294.923 KB) | DOI: 10.32734/jtk.v10i1.3271

Abstract

Anaerobic digestion is the decomposition of organic matter by microbes into methane, carbon dioxide, and hydrogen sulfide in the absence of oxygen. This study aimed to obtain the stability of the one stage anaerobic digester in biogas production that was seen through pH and alkalinity parameters. The process was carried out by varying the temperature, which is 35 °C, 45 °C, and 55 °C with pH maintained 7 (± 0.2). Analysis of pH and alkalinity was carried out to assess the stability of reactor using samples taken from the reactor overflow. The pH profile produced was relatively stable with a pH range between 6.8 - 7.3. The resulting alkalinity is relatively stable with aalkalinity range between 3.500 – 4.500 mg/L. The volume of biogas produced at 35 °C, 45 °C, and 55 °C respectively are 2065 mL, 3830 mL, and 4570 mL with the highest concentrations of methane (CH4), Carbon dioxide (CO2) and trace Hydrogen Sulfide (H2S) at a temperature of 55 oC obtained the value of the composition of methane, carbon dioxide, and hydrogen sulfide each at 89,000 %, 11,000 %, and 0,011 %.
Studi Adsorpsi Furfural Menggunakan Karbon Aktif dari Kulit Durian Termodifikasi Philip Dohan Rea Sitinjak; Amir Husin
Jurnal Teknik Kimia USU Vol. 10 No. 1 (2021): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (197.736 KB) | DOI: 10.32734/jtk.v10i1.3624

Abstract

Furfural is an aromatic aldehyde, classified as hazardous material that cause environmental impact, especially harmful for humans if consumed. Furfural removal in water is necessary to overcome the negative impact. Furfural removal can be carried out using adsorption of activated carbon from durian shell. This study determines contact time and reaction kinetic using modified activated carbon which carried out in 7 stages: preparation of furfural main solution 1000 ppm, furfural work solution, determining furfural standard curve, adsorption time, best mass and adsorption capacity of activated carbon, isotherm adsorption and kinetics. The parameters measured are contact time, capacity, furfural adsorption kinetics. Filtrate testing is carried out using UV-Spectrophotometry. Results that obtained in this study are best contact time at 75 minutes with reaction order; reaction contant (k); linear regression (R2) are 1.5; 3.966 × 10-5 (mg/g)/s; 0.9451 respectively. The isotherm adsorption model is Langmuir Isotherm.  
Pengaruh Ukuran Partikel Zeolit Alam yang Diaktivasi dan Diimpregnasi HCl dan Mg2+ pada Penjerapan Ion Fosfat Fatimah; Sri Rahmadaniati Effendi; Charissa Dini Sofith
Jurnal Teknik Kimia USU Vol. 10 No. 1 (2021): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.625 KB) | DOI: 10.32734/jtk.v10i1.4010

Abstract

Research on phosphate adsorption using natural zeolites which were activated and impregnated with HCl and Mg2 +had been carried out. This study examined the effect of natural zeolite particle size on phosphate ion adsorption. Stages of the study began from sifting zeolites in accordance with the specified size (50/70 mesh, 70/110 mesh and 110/120 mesh), washing, activation and impregnation. Natural zeolite with 110/120 mesh particle size is used to determine the contact time in absorbing phosphate ions. Natural zeolite can absorb phosphate as much as 8.53 mg / l or 85.3% with a contact time of 35 minutes. The variation of the adsorption on the natural zeolite particle size is carried out to get the effect of the natural zeolite particle size on the adsorption of phosphate ions. Phosphate ions which are absorbed by zeolites are analyzed using a UV-Vis spectrophotometer. The highest absorption efficiency (99.26%) was obtained for natural zeolite particle size 110/120 mesh. The natural zeolite adsorption isotherm model of the phosphate ion is tested with the Freundlich and Langmuir equations. Based on the data obtained, the isotherm model suitable for this study is Freundlich with a value of R2 = 0.985.
Potensi Formulasi Sediaan Sabun Padat Minyak Kelapa dengan Pengisi Bentonit sebagai Media Pembersih Najis Mughallazah Maria Grace Tobing; Lilis Sukeksi; Iriany; Siswarni
Jurnal Teknik Kimia USU Vol. 10 No. 1 (2021): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (274.914 KB) | DOI: 10.32734/jtk.v10i1.4575

Abstract

Najis mughallazah is excrement which comes from pigs which earthen soap can use to purify it.  Method to purify unclean that is necessary to use water seven times and the addition of bentonite to soap is expected to be able to remove unclean Deoxyribonucleic Acid (DNA) that is located on the surface of human skin. The purpose of this study was to determine the effect of the amount of bentonite filler and the reaction temperature on the quality of soap, knowing whether the soap formula meets the SNI quality requirements and knowing whether the soap formula can remove Pig DNA residues using the Polymerase Chain Reaction (PCR) analytical method. In this study, the operation conditions were designed at the reaction temperature (50 oC, 60 oC, 70 oC and 80 oC), bentonite consistency (10%, 12.5%, 15%, 17.5% and 20%), 35% NaOH concentration, reaction time 10 minutes and stirring speed 250 rpm. The analyzes carried out in this study include analysis of water content, free alkaline content, free fatty acid content and PCR method. The best results were obtained for 15% (70 °C) soap that had soap hardness characteristics close to conventional soap and 17.5% (50 °C) soap with the characteristics of soap that could remove najis mughallazah. The resulting solid bentonite soap formula meets the SNI 3523: 2016 standard and can eliminate mughallazah unclean.
Ekstraksi Tanin dari Buah Balakka (Phyllanthus emblica L.) dengan Bantuan Microwave: Pengaruh Daya Microwave, Perbandingan Massa Kering Terhadap Jumlah Pelarut Etil Asetat Iriany; Hendri Angkasa; Cut Annisa Namira
Jurnal Teknik Kimia USU Vol. 10 No. 1 (2021): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (231.02 KB) | DOI: 10.32734/jtk.v10i1.5318

Abstract

Tannins are phenolic compounds with considerable abundance in nature. In this study, the extraction of Indian gooseberry fruit was performed using Microwave Assisted Extraction (MAE) method with ethyl acetate as solvent. Two grams of Indian gooseberry fruit were extracted for 1 minute with variable microwave power operation (100, 180, 300, 450 and 600) W. The experiment is continued at the power that gave the highest yield of tannin with  variable ratio sample to solvent (1/10, 1/20, 1/30, 1/40 and 1/50) g/mL. Total tannins in the extract were analyzed using UV-Vis Spectroscopy method to find the yield of tannin. Functional groups that were contained in the extract were analyzed using Fourier-Transform Infrared Spectroscopy (FTIR) method. The results of this study indicate that the extract contains tannins in qualitative tests with gelatin and FeCl3 as well as in FTIR analysis. The highest yield of tannin was 36.86 mg/g which was obtained under conditions of power 100 W and ratio sample with ethyl acetate 1/50 g/mL.

Page 1 of 1 | Total Record : 5

 1 

Filter by Year

2021 2021


Reset
Filter By Issues
All Issue Vol. 12 No. 2 (2023): Jurnal Teknik Kimia USU Vol. 12 No. 1 (2023): Jurnal Teknik Kimia USU Vol. 11 No. 2 (2022): Jurnal Teknik Kimia USU Vol. 11 No. 1 (2022): Jurnal Teknik Kimia USU Vol. 10 No. 2 (2021): Jurnal Teknik Kimia USU Vol. 10 No. 1 (2021): Jurnal Teknik Kimia USU Vol. 9 No. 2 (2020): Jurnal Teknik Kimia USU Vol. 9 No. 1 (2020): Jurnal Teknik Kimia USU Vol. 8 No. 2 (2019): Jurnal Teknik Kimia USU Vol. 8 No. 1 (2019): Jurnal Teknik Kimia USU Vol. 7 No. 2 (2018): Jurnal Teknik Kimia USU Vol. 7 No. 1 (2018): Jurnal Teknik Kimia USU Vol. 6 No. 4 (2017): Jurnal Teknik Kimia USU Vol. 6 No. 3 (2017): Jurnal Teknik Kimia USU Vol. 6 No. 2 (2017): Jurnal Teknik Kimia USU Vol. 6 No. 1 (2017): Jurnal Teknik Kimia USU Vol. 5 No. 4 (2016): Jurnal Teknik Kimia USU Vol. 5 No. 3 (2016): Jurnal Teknik Kimia USU Vol. 5 No. 2 (2016): Jurnal Teknik Kimia USU Vol. 5 No. 1 (2016): Jurnal Teknik Kimia USU Vol. 4 No. 4 (2015): Jurnal Teknik Kimia USU Vol. 4 No. 3 (2015): Jurnal Teknik Kimia USU Vol. 4 No. 2 (2015): Jurnal Teknik Kimia USU Vol. 4 No. 1 (2015): Jurnal Teknik Kimia USU Vol. 3 No. 4 (2014): Jurnal Teknik Kimia USU Vol. 3 No. 3 (2014): Jurnal Teknik Kimia USU Vol. 3 No. 2 (2014): Jurnal Teknik Kimia USU Vol. 3 No. 1 (2014): Jurnal Teknik Kimia USU Vol. 2 No. 4 (2013): Jurnal Teknik Kimia USU Vol. 2 No. 3 (2013): Jurnal Teknik Kimia USU Vol. 2 No. 2 (2013): Jurnal Teknik Kimia USU Vol. 2 No. 1 (2013): Jurnal Teknik Kimia USU Vol. 1 No. 2 (2012): Jurnal Teknik Kimia USU Vol. 1 No. 1 (2012): Jurnal Teknik Kimia USU More Issue