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All Journal Jurnal Sains dan Pendidikan Fisika Komunikasi Fisika Indonesia Berkala Fisika Indonesia : Jurnal Ilmiah Fisika, Pembelajaran dan Aplikasinya Jurnal Fisika Unand Elkawnie JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Jurnal Redoks JISTech (Journal of Islamic Science and Technology) Fisitek : Jurnal Ilmu Fisika dan Teknologi Jurnal Kumparan Fisika Jurnal Fisika dan Terapannya CHEDS: Journal of Chemistry, Education, and Science EINSTEIN (E-JOURNAL) Jurnal Sains dan Teknologi Attadrib: Jurnal Pendidikan Guru Madrasah Ibtidaiyah
Masthura, Masthura
Universitas Islam Negeri Sumatera Utara, Medan, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Other

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Journal : JISTech (Journal of Islamic Science and Technology)

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PENURUNAN KANDUNGAN BOD DAN COD LIMBAH CAIR KELAPA SAWIT MENGGUNAKAN METODE ELEKTROKOAGULASI Masthura Masthura; Abdul Halim Daulay; Lansari Daulay
JISTech (Journal of Islamic Science and Technology) Vol 6, No 2 (2021)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v6i2.10014

Abstract

Research using the electrocoagulation method has been carried out to determine the results of the sample test results for BOD and COD parameters in palm oil mill effluent. The electrodes used n this method are aluminium electrodes with varying adapter voltages of 6, 9, and 12 Volts. Palm oil liquid waste used comes from PTPN IV Adolina Perbaungan. The results of the study showed that before the electrocoagulation method the BOD value obtained was 243 mg/l, while after the electrocoagulation method the best results were obtained at a voltage of 12 Volt with a value of 52,5 mg/l. The value obtained before the electorocoagulation method was carried out on the COD parameter was 649 mg/l and after the electrocoagulation method the best results were obtained at a voltage of 12 Volt, which was 110 mg/l. This shows that the parameter values of BOD and COD in processed waste have decreased and meet the wastewater quality standards for the palm oil industry, namelyb 100 mg/l and 350 mg/l. The higher the value of the applied voltage, the more optimal the levels of BOD and COD.
PENGARUH VARIASI ELEKTRODA TERHADAP KELISTRIKAN SARI KULIT NENAS (ANANAS COMOSUS) SEBAGAI BIOBATERAI Rahmasari Pohan; Masthura Masthura; Abdul Halim Daulay
JISTech (Journal of Islamic Science and Technology) Vol 6, No 2 (2021)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v6i2.11440

Abstract

The need for an electrical energy source is currently a very necessary thing, therefore researchers conducted experiments on the use of pineapple peel (ananas  comosus) extract as an electrolyte solution with a variety of electrodes. This research was conducted with the aim of generating voltage, electric current, and strength values. The measure of the holding capacity of the solution used were 50 ml, 100 ml, 150 ml, 200 ml, and 250 ml. The electrodes to be used are in the form of copper-zinc, copper-iron, and copper-aluminum pairs with each plate measurement of 4 cm × 7 cm, thickness of 0.2 mm. To determine the magnitude of the value of the voltage and current, a resistance is given in the form of an LED lamp. Based on the results of the research the pH measurement of the solution was 3.9. The test results obtained by the pair of Cu:Zn plates are the best compared to other pairs of plates, namely by producing a voltage of 1.59 Volts, a current of 0.28 mA, and an strength values of 0.44 mW with a volume of 250 ml. This is due to the influence of the volume of the solution and the electrodes used, that the more plates submerged in the solution, the greater the energy produced.
PENGARUH KOMPOSISI KARBON AKTIF, ZEOLIT, DAN PASIR SILIKA DALAM MENURUNKAN WARNA AIR SUMUR GALI DI DESA SUNGAI SEGAJAH JAYA Abdul Halim Daulay; Masthura Masthura; Jefri Ardiansyah Nasution
JISTech (Journal of Islamic Science and Technology) Vol 6, No 2 (2021)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v6i2.11057

Abstract

Research has been carried out to find out how the quality of dug well water before and after being filtered using activated carbon, zeolite, and silica sand, and to find out how the composition of the mixing of activated carbon, zeolite, and sand is to produce clean water with the most optimum quality for color parameters. based on PERMENKES RI No. 32 of 2017. This study uses dug well water from Sungai Segajah Jaya Village, Kubu District, Rokan Hilir Regency, Riau Province. The composition of activated carbon, zeolite, and silica sand used is 60%:20%:20%, 50%:25%:25%, and 40%:30%:30%. The test results of dug well water samples before applying the filtering method for color. The test results of dug well water samples after applying the filtering method with activated carbon, zeolite, and sand with a composition of 60%:20%:20%, 50%:25%:25%, and 40%:30%:30 %, for the color parameter has met the standard of clean water quality based on PERMENKES RI No. 32 of 2017. From the three variations in the composition of the filter material, the optimum composition of mixing activated carbon, zeolite, and silica sand in the filter was obtained with a composition of 40%:30%:30%. This is shown from the test results data, the results of sample D for color parameters are better according to the maximum limit standard allowed by PERMENKES RI No. 32 of 2017 concerning the requirements for clean water quality, namely 32 TCU.
PENGARUH VARIASI ELEKTRODA DALAM MENURUNKAN KADAR BOD DAN COD LIMBAH CAIR KELAPA SAWIT Masthura Masthura; Abdul Halim Daulay; Irmawati Koto
JISTech (Journal of Islamic Science and Technology) Vol 6, No 1 (2021)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v6i1.10009

Abstract

Research has been carried out which aims to determine the test results of palm oil effluent samples on BOD and COD parameters before and after the electrocoagulation process using Al,Zn, and Fe electrodes. This research uses palm oil effluent from PTPN IV ADOLINA. The results of the BOD test before electrocoagulation were 243 img/l. The results of the BOD test after electrocoagulation with the Al electrode were 100 mg/l, the Zn electrode was i66.8 img/l, and the Fe electrode was 121 mg/l. The test results for COD levels before electrocoagulation were 649 mg/l.The test results for COD levels iafter electrocoagulation with Al electrodes were 350 mg/l, Zn electrodes were 178 mg/l, and Fe electrodes were 315 mg/l. From these electrode variations, ithe best results were obtained for testing the levels of BOD and COD of palm oil liquid waste on the Zn electrode. Key words: Electrode, Electrocoagulation, BOD, COD 
PENGARUH KOMBINASI MEDIA FILTER KARBON AKTIF DENGAN ZEOLIT DALAM MENURUNKAN KADAR LOGAM AIR SUMUR Abdul Halim Daulay; Kartika Manalu; Masthura Masthura
JISTech (Journal of Islamic Science and Technology) Vol 4, No 2 (2019)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (175.089 KB) | DOI: 10.30829/jistech.v4i2.6543

Abstract

Telah dilakukan penelitian tentang pengaruh kombinasi media filter karbon aktif dengan zeolit dalam menurunkan kadar logam air sumur. Penelitian ini bertujuan untuk mengetahui komposisi optimum pencampuran karbon aktif dengan zeolite agar diperoleh filter yang dapat menghasilkan air bersih. Rasio karbon aktif dengan zeolit yang digunakan antara lain 25%:75%, 50%:50%, dan 75%:25%. Hasil pengujian menunjukkan bahwa komposisi optimum pencampuran karbon aktif dan zeolit adalah pada rasio karbon aktif 25% dan zeolit 75%. Hal ini ditunjukkan dari data hasil pengujian air untuk parameter logam besi (Fe) yaitu sebesar 0,52 mg/l, logam mangan (Mn) 0,013 mg/l, dan logam timbal (Pb) 0,002 mg/l. Hasil pengujian kadar logam air sumur masih berada pada rentang standar batas maksimum yang diperbolehkan oleh Permenkes RI Nomor 492 Tahun 2010 tentang persyaratan kualitas air minum
PENGARUH SUHU AKTIVASI TERHADAP KUALITAS KARBON AKTIF BIJI DURIAN Sahdinal Adi; Masthura Masthura; Abdul Halim Daulay
JISTech (Journal of Islamic Science and Technology) Vol 7, No 1 (2022)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v7i1.12090

Abstract

This research was conducted to utilize durian seed waste into activated carbon and aims to identify the characteristics of the durian seed activated carbon produced from the activation temperature alteration. With an experimental method with a quantitative approach, the process of making durian seed activated carbon was tested by carbonization using an oven at a temperature of 200 oC for 180 minutes, then temperature activation with alterations of 500, 600, and 700 oC was held for 120 minutes in the furnace, and after it was added with chemical activation by using a 1,5 M H2SO4 solution for 24 hours of immersion. The analysis seen is to test the water content, volatile matter content, ash content, bound carbon content, and to see the surface morphology of activated carbon using SEM (Scanning Electron Microscopy). The results of the test obtained values for water content (6,83 – 12,73%), volatile matter content (16,98 – 26,89%), ash content (7,85 – 12,04%), bound carbon content(61,66 – 75,17%), with an increase in the activation temperature there is a tendency to decrease the value of water content, volatile matter content, ash content, and there is an increase in the value of bound carbon content. And visible cavities on the surface of the activated carbon along with the increase in activation temperature.
UJI FISIS BRIKET BIOARANG BERBAHAN BATANG TEH (CAMELLIA SINENSIS) Abdul Halim Daulay; Masthura Masthura; Heni Puspita Sari
JISTech (Journal of Islamic Science and Technology) Vol 7, No 1 (2022)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v7i1.12084

Abstract

Research has been done on the physicl test of charcoal briquettes made from tea stems (Camellia sinensis). This study aims to determine the physical characteristics of the charcoaI briquettes produced. This research is motivated by the increasing demand for human fuel, thus utilizing tea stems as the main ingredient in making briquettes. The sample variations used were tea tree trunk charcoaI and tapioca adhesive as an adhesive with a ratio of 90%:I0%, 80%:20%, 70%:30%, 60%:40%, and 50%:50%. The physical test carried out included water content, density, and calorific value. The results obtained from the physical test of biochar briquettes with the best quality approaching the quality standards of Indonesian briquettes were obtained on sample with a composition (70%:30%) with the value of water content, density, and calorific value, each of which was 5 .70%, 0.55 g/cm3, and (-) 7.62 cal/g.
PENGARUH VARIASI PEREKAT TERHADAP NILAI KALOR BRIKET DARI SERBUK DAUN TEH Masthura Masthura; Abdul Halim Daulay; Haryu Wanda Desgira
JISTech (Journal of Islamic Science and Technology) Vol 7, No 1 (2022)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v7i1.12083

Abstract

Research has been carried out on the effect of adhesive variations on the heating value of briquettes made from tea leaf powder. This study aims to determine the quality of the briquettes produced, this research is motivated by the increasing need for human fuel, so that researchers use tea leaf powder as the main ingredient in making briquettes. The variation of the sample used was tea leaf powder using adhesives in the form of tapioca, wheat flour and molasses as adhesives. With a ratio of 80%:20% and 70%:30%. The analysis carried out is the Calorific Value test. The results obtained from the Calorific value test of briquettes with the best quality approaching the quality standards of Indonesian briquettes were obtained in sample C2 with a composition (70%:30%) which resulted in a heat absorption value of 112.86 cal/gram.
SISTEM PENGATURAN NILAI KEMIRINGAN PANEL SURYA DALAM PENINGKATAN KINERJA OUTPUT PANEL SURYA TERMONITORING INTERNET OF THINGS Abdullah Abdullah; Maharani Putri; Juli Iriani; Fitria Nova Hulu; Cholish Cholish; Masthura Masthura
JISTech (Journal of Islamic Science and Technology) Vol 7, No 2 (2022)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v7i2.14178

Abstract

Penggunaan panel surya banyak dimanfaatkan masyarakat karena mampu bekerja menyerap energi matahari untuk menghasilkan sumber energi listrik, akan tetapi pergerakan panel surya kearah cahaya matahari masih bersifat manual (dibantu dengan manusia). Sistem terintegrasi Internet of Things bertujuan untuk memantau kerja dari panel surya dengan cara memperlihatkan sistem monitoring jarak jauh yang memanfaatkan jaringan internet. Variabel yang dimonitoring yaitu varibel pergerakan panel surya yang terdiri dari nilai tegangan analog, intensitas cahaya matahari, nilai kemiringan, posisi dan kondisi cuaca panel surya. Pada pengujian sudut pergerakan motor pengaturan derajat kemiringan dapat diatur pada posisi maksimal cahaya matahari. Posisi maksimal didapat sebesar 125o sejalan dengan intensitas cahaya yang didapat sebesar 1680 Lux, menghasilkan tegangan rata-rata sebesar 20,22 V, arus sebesar 2,10 A dan daya sebesar 43,07 W.
PENGARUH PENAMBAHAN ABU KULIT CACAO TERHADAP SIFAT MEKANIK DAN MORFOLOGI BATA MERAH Masthura Masthura; Ratni Sirait; Rosyidah Mardiyah Sagala
JISTech (Journal of Islamic Science and Technology) Vol 8, No 2 (2023)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v8i2.18410

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh variasi abu kulit cacao terhadap parameter mekanik dan morfologi dalam pembuatan batu bata merah. Metode penelitian ini menggunakan eksprimen. Kuat tekan pada bata merah memiliki nilai minimum 29,73 kg/cm2, dan maksimum 243,82 kg/cm2, dengan melakukan pengujian morfologi menggunakan Scanning Electron Microscope (SEM) dengan bantuan software digimizer maka, nilai minimum sebesar 0,7985 m dan maksimum 2,4551 m. Bahan pembuatan bata merah yaitu tanah liat air dan abu kulit cacao, yang di bakar dengan memvariasikan suhu. Suhu pembakaran batu bata yang optimum pada suhu 1000oC dengan variasi abu kulit cacao 20%, penelitian ini sesuai dengan SNI 15-2094-2000.
Co-Authors Abdul Halim Daulay Abdullah Aida Febriana Tanjung Ainun Azizah Amanda, Syahna Dwi Andara Paulina Anggun Hermi Palupi Annisa Aulia Pratiwi Ardian Afandi Armansyah Armansyah Arninda Pratiwi Cholish Debby Marantika Dickiy Akbar Dien Rahmi Waruwu Dwitha Astari Ety Jumiati Feby Inka Putri Fitra Aulia Berutu Fitria Nova Hulu Haryu Wanda Desgira Heni Puspita Sari Hilwa Anisa Homsiah Mayang Sari Silalahi Husnah Miftahul Indah Pratiwi Tanjung Indah Sawitri Irmawati Koto Isti Afliza Jefri Ardiansyah Nasution Juli Iriani Jumiati, Ety Kartika Manalu Lansari Daulay Maharani Putri Miftahul Husnah Miftahul Husnah Muhammad Rajali Harahap Mulkan Iskandar Nasution Mulkan Iskandar Nasution Mutiah Lubis Nadilla Putri Nadjara Yolanda Nazaruddin Nasution Nujulia Subuharni Nurul Rizki Amalia Pinem, Lela Feranita Purnama Indah Lase Putri Dwi Ananda Rahmasari Pohan Rajai Sitorus Ramidin, Ramidin Ratni Sirait Ratni Sirait Ratni Sirait Ratni Sirait Ratni Sirait Ria Muliyana Rima Suastika Rizka Alivia Nasution Rizki Qorina Roida Br Sinaga Rosyidah Mardiyah Sagala Rosyidah Mardiyah Sagala Sahdinal Adi sari, Bella Novita Shati Suci Ramadhani Sri Fuji Ariska sri wulandari Syahna Dwi Amanda Tinsia Tinsia Tri Ninda Malika Vicha Indriany Widya, Eka Wulandari Armaya Sembiring Zulkarnain Putra