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All Journal Jurnal Rekayasa Proses Reaktor JURNAL TEKNOLOGI LINGKUNGAN Jurnal Bahan Alam Terbarukan Eksergi: Chemical Engineering Journal JURNAL INTEGRASI PROSES Teknika: Jurnal Sains dan Teknologi Jurnal Agroekoteknologi Jurnal Teknika ALCHEMY Jurnal Penelitian Kimia Jurnal Rekayasa Proses Jurnal Teknik Kimia Indonesia Journal of Community Service in Science and Engineering Bulletin of Chemical Reaction Engineering & Catalysis
Jayanudin Jayanudin
Universitas Sultan Ageng Tirtayasa
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Analysis of magnetic field magnitude under the extra-high-voltage airway (SUTET) with route of Cilegon - Cibinong Retno Hadi Winoto; Jayanudin Jayanudin; Nuryoto Nuryoto
Jurnal Teknika Vol 18, No 2 (2022): Available Online in November 2022
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v18i2.17118

Abstract

Today, electricity is a very important need so the demand for electricity increases in the world. To meet the electricity needs of the community, the Indonesian government through the state electricity company (PT. PLN) has built electric power networks starting from power plants to transmission lines that can supply electricity to consumers. To reduce power losses along the transmission lines, extra-high-voltage (EHV) is needed. However, the use of this EHV also produces electric and magnetic fields around the conducting wires. This causes anxiety for people, especially people who live in the areas of EHV Airways. The large magnetic field around the conductor wires is feared to have a detrimental impact on people who live near transmission lines. The threshold for the value of the magnetic field that is permitted according to the regulations of MENKES/SK/XI/2002 and SPLN 112:1994 is 500 μT. For this reason, this research was conducted to determine the magnitude of the magnetic field around the conductor wires of the EHV Airway and to determine the effect of the magnetic field on the environment. The methods used in this research were direct measurements and theoretical calculations. The results of the research prove that the value of the magnetic field that appears, both in terms of calculations and in terms of measurements, is still below the allowable threshold both by WHO and IRPA as well as by MENKES/SK/XI/2002 and SPLN 112:1994
THE INFLUENCE OF COATING MATERIAL DIFFERENCE AGAINST ENCAPSULATION EFFICIENCY OF RED GINGER OLEORESIN Jayanudin Jayanudin; Rochmadi Rochmadi; M. Kemal Renaldi; Pangihutan Pangihutan
ALCHEMY Jurnal Penelitian Kimia Vol 13, No 2 (2017): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (581.881 KB) | DOI: 10.20961/alchemy.13.2.5406.274-286

Abstract

The purpose of this study was to determine the effect of different coating materials on the efficiency of red ginger oleoresin encapsulation and characterization of microcapsule surface. The encapsulation process begins by dissolving chitosan with 1 % (v/v) acetic acid and dissolving sodium alginate using aquadest to be used as a coating material. Red ginger oleoresin alginate included in the solution was stirred. The mixture entered into the chitosan solution and added tween 80 was stirred using a homogenizer to emulsify. The emulsion that forms included in the spray dryer to be converted into a powder of microcapsules, and then analyzes the encapsulation efficiency and surface morphology of microcapsules using scanning electron microscopy (SEM). Differences in the coating material used were chitosan, mixture of chitosan-alginate and mixture of chitosan-alginate-sodium tripolyphosphate (STPP). Weight ratio of red ginger oleoresin and the coating material were 1: 1, 1: 2 and 1: 3. The research results obtained were the highest encapsulation efficiency obtained from the coating material of the chitosan-alginate-sodium tripolyphosphate (STPP) at a ratio of 1: 3, namely by 85 %.
Training on making composters and biopore holes as a solution to the organic waste problem Retno Sulistyo Dhamar Lestari; Denni Kartika Lestari; Dhena Ria Barleany; Endang Suhendi; Jayanudin Jayanudin
Journal of Community Service in Science and Engineering (JoCSE) Vol 2, No 2 (2023): Available Online in October 2023
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/jocse.v2i2.21031

Abstract

Pengelolaan sampah organik dan anorganik merupakan salah satu permasalahan yang sering terjadi di masyarakat. Pengembangan komunitas dan pengenalan teknologi pembuatan kompos dan lubang biopori merupakan upaya untuk meningkatkan potensi lingkungan berupa pengelolaan sampah organik. Metode yang digunakan dalam kegiatan pengabdian ini adalah penyuluhan dan focus group discussion (FGD). Permasalahan yang sering terjadi adalah sampah rumah tangga yang dibiarkan tidak terpilah dan langsung dikirim ke tempat pembuangan sampah menyebabkan banyaknya sampah yang menumpuk di tempat pembuangan akhir (TPA). Program ini fokus pada perubahan pola pikir masyarakat dalam menangani sampah rumah tangga, memilah sampah, dan membuat lubang-lubang biopori di setiap rumah dan lahan terbuka serta membuat komposter untuk mengolah sampah organik menjadi kompos. Management of organic and inorganic waste is one of the problems that often occurs in society. Community development and the introduction of composting technology and bio pore holes are efforts to increase environmental potential through organic waste management. The methods used in this service activity are counseling and focus group discussions (FGD). The problem is that household waste is left unsorted and sent directly to landfills, causing large amounts of garbage to pile up in final disposal sites (TPA). This program focuses on changing the community's mindset in handling household waste, sorting waste, making bio pore holes in every house and open land, and making a composter to process organic waste into compost.
SINTESIS, KARAKTERISASI DAN APLIKASI TIMAH TETRAKLORIDA PENTAHIDRAT Marta Pramudita; Alia Badra Pitaloka; Rahmayetti Rahmayetti; Jayanudin Jayanudin; Saepurahman Saepurahman; Teguh Kurniawan; Selfira Arum Andadari
JURNAL INTEGRASI PROSES Vol 12, No 2 (2023)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/jip.v12i2.22830

Abstract

Indonesia is one of the world's largest tin-producing countries, but its downstream industry is not well developed. One of the chemical products derived from tin is SnCl4.5H2O. Several commercial production routes are reviewed in this paper. In addition, SnCl4.5H2O characterization techniques from advanced analytical instruments to titration analysis are also discussed. Commercial applications of SnCl4.5H2O products include catalysts, polyvinyl chloride (PVC) stabilizers, and dyes. The latest developments regarding the potential of SnCl4.5H2O as a catalyst are also reviewed in this paper.
Influence of chitosan addition on the properties and characteristics of acrylic acid-chitosan based superabsorbent prepared through gamma irradiation technique and its application for urea loading Jayanudin, Jayanudin; Lestari, Retno Sulistyo D.; Barleany, Dhena Ria; Pitaloka, Alia Badra; Yulvianti, Meri; Demustila, Harly; Yulianto, Amin; Anggoro, Dendy Vito; Ruhiatna, Adam
Jurnal Teknika Vol 19, No 2 (2023): AVAILABLE ONLINE IN NOVEMBER 2023
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v19i2.20842

Abstract

Superabsorbent can be used as a carrier for urea-fertilizer which can release urea slowly and can be used as a dry soil moisturizer. The main goal of the current study was to investigate the influence of adding chitosan grafted onto acrylic acid as a superabsorbent base material on the properties and characteristics of the resulting superabsorbents. The method used to prepare the superabsorbent was the gamma irradiation technique. Acrylic acid was neutralized by adding KOH, and then chitosan was added. The mixture was put in a plastic container, followed by irradiation with gamma rays. The formed superabsorbent was washed and dried in an oven, then the dry superabsorbent was analyzed for its properties and characteristics. The results showed that superabsorbent properties such as swelling ratio (from 49.38 g/g to 49.38 g/g), water retention (0.43%-0.89% after 7 days), and urea loading (86.75% to 96.4%) were affected by the amount of chitosan added. However, adding too much chitosan can reduce the superabsorbent properties. The characterization of the superabsorbent revealed a smooth surface with a porous structure, and FTIR analysis showed that chitosan was grafted onto acrylic acid.   
Bimetallic Ru-Sn as Effective Catalysts for the Selective Hydrogenation of Biogenic Platform Chemicals at Room Temperature Azzahra, Atina Sabila; Dewi, Heny Puspita; Mikrianto, Edi; Sembiring, Kiky Corneliasari; Sunnardianto, Gagus Ketut; Nata, Iryanti Fatyasari; Rodiansono, Rodiansono; Jayanudin, Jayanudin
Bulletin of Chemical Reaction Engineering & Catalysis 2023: BCREC Volume 18 Issue 4 Year 2023 (December 2023)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20067

Abstract

Supported bimetallic ruthenium-tin (denoted as Ru-Sn(x); x = molar ratio of Ru/Sn) catalysts were examined for room temperature (RT) hydrogenation of biogenic platform chemicals of levulinic acid (LA) to g-valerolactone (GVL). Six types of metal oxide support c.a. Nb2O5, TiO2, ZnO, ZrO2, g-Al2O3, active charcoal (AC), were employed as the support for Ru-Sn(x). Ru-Sn(3.0)/Nb2O5 (Ru/Sn = 3.0) that reduced at 500 oC demonstrated the highest yield of GVL (98%) at 30 oC, 30 bar H2 for 3 h. The increase in Sn loading amount (Ru/Sn = 1.5) resulted in decreasing of LA conversion (83%) under the same reaction conditions. Among the studied supported Ru-Sn catalysts, Nb2O5 and ZnO supports exhibited better catalytic performances than that other for RT hydrogenation of LA and various biogenic platform chemicals. The Ru-Sn(3.0)/Nb2O5 catalyst was characterized by means of various adsorption and spectroscopic techniques. The Ru-Sn(3.0)/Nb2O5 catalyst was found to be reusable without any significant loss of its activity. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA  License (https://creativecommons.org/licenses/by-sa/4.0). 
Co-Authors A.A. Ketut Agung Cahyawan W Abd. Rasyid Syamsuri Adi Winata Ahmad Imanudin Ahmad Suhendi Aldi Fathurohman Ali Hafid Supriatna Alia Badra Pitaloka Anellysha Putri Apriantika Anggoro, Dendy Vito Artika Sari Septiaziz Ayu Zakiyah Lestari Azzahra, Atina Sabila Barleany, Dhena Ria Chatarina Umbul Wahyuni Dandi Irawanto Dandi Irwanto Denni Kartika Lestari Denni Kartika Sari Denni Kartika Sari Devi Nuraini M Dewi, Heny Puspita Diki Suhendar Edi Mikrianto Endang Suhendi Endang Suhendi, Endang Endrian Harzuli Fakhri Muhammad Fakhri Muhammad Feni Nurbayanti Gustiana Awaludin Sobarsah Hafid Alwan Harly Demustila Hary Sulistyo Indar Kustiningsih Iqbal Syaichurrozi Iryanti Fatyasari Nata, Iryanti Fatyasari Jauharotul Uyun Kiky Corneliasari Sembiring Kustiningsih, Indar Lestari, Retno Sulistyo D. Listiyani Nurwindya Sari M. Kemal Renaldi Marta Pramudita Maulana Suyuti Maulana Suyuti Meri Yulvianti Moh. Fahrurrozi Moh. Fahrurrozi Mohammad Fahrurrozi Mohammad Fakhrurozi Muhammad Luthfi Nicken Ayoe Fajrianto Nuryoto Ofi Shofiah Pangihutan Pangihutan Pitaloka, Alia Badra R Rochmadi Rahmayetti Rahmayetti Reta Pujinia Retno Hadi Winoto Retno S.D. Lestari Retno Sulistyo D Lestari Retno Sulistyo Dhamar Lestari Retno Sulistyo Dhamar Lestari Reyonaldo Langgeng Adi Wardana Reyonaldo Langgeng Adi Wardana Rizkina Ika Aryana Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rochmadi Rodiansono Rodiansono Rozak Bahaudin Rozak Rozak Rudi Hartono Ruhiatna, Adam Saepurahman Saepurahman Sang Kompiang Wirawan Selfira Arum Andadari Seta Dewo Sunnardianto, Gagus Ketut Teguh Kurniawan Tri Rina Sari Wahyu Budi Setiawan Yulianto, Amin Yulvianti, Meri