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All Journal Jurnal Teknoin Sinergi Communications in Science and Technology Jurnal Ilmiah Teknik Kimia Scientica: Jurnal Ilmiah Sains dan Teknologi
Suhartono, Jono
Institut Teknologi Nasional
Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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PENGEMBANGAN PELUMAS RAMAH LINGKUNGAN DENGAN ESTER BORAT Dicky Dermawan; Jono Suhartono
Teknoin Vol. 22 No. 6 (2016)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol22.iss6.art3

Abstract

This paper reports an attempt to improve the performance of environmentally friendly bio-based lube oil prepared from glycerol and oleic acid. Four variant of boric acid esters, fortified with 2,5dimercapto-1,3,4-thiadiazol, aromatic amine antioxidant, and benzotriazol were used as additives. The oxidation & corrosion test was carried out using the bulk test at 150oC for 24 h. Steel & copper specimens weight losses and kinematic viscosity increase (measured at 40oC and 100oC according to ASTM D-445) were used to measure the effect of formulation to the corrosiveness and oxidation stability of the oil, respectively. Experimental results indicated that nitrogen-containing boric acid esters showed better performance in terms of oxidation stability improvement. Slight increases in corrosiveness were shown for all additive systems. Phenyl-1-naphtylamine showed better performance than diphenylamine antioxidant.
Production of silver nanoparticles via green method using banana raja peel extract as a reducing agent Chafidz, Achmad; Afandi, Amira Rahmani; Rosa, Bunga Mela; Suhartono, Jono; Hidayat, Pratikno; Junaedi, Harri
Communications in Science and Technology Vol 5 No 2 (2020)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.5.2.2020.223

Abstract

In this study, biosynthesis of silver nanoparticles using the extract of a local banana peel (variant name: Raja) as bio-reductor was carried out. This study aimed to determine the effect of two different ratios of Banana Peel Extract (BPE)/distilled water on the synthesis of silver nanoparticles. The two of BPE/water ratios were 1% (v/v) and 5%(v/v), named as Sample A and Sample B, respectively. Whereas, the concentrations of AgNO3 solution as the precursor were varied as follows: 0.125; 0.1; 0.075; and 0.05 M. The synthesized colloidal silver nanoparticles were characterized using a UV-Vis spectrometer, while the BPE solution was analyzed using Fourier Transform Infra-Red (FT-IR) to study its functional groups. While, the solid silver nanoparticles was characterized using a Scanning Electron Microscopy (SEM) with an Energy-dispersive X-ray spectroscopy (EDX) analysis. The UV-Vis spectrometer results qualitatively showed that sample A produced better silver nanoparticles than that of sample B. All samples showed absorbance peaks at wavelength of 450 nm. It was found that the highest absorbance value (i.e. 1.59) occurred at sample A with a concentration of AgNO3 solution 0.1 M. Additionally, FT-IR analysis result showed the presence of a hydroxyl group specifically for alcohols as phenols, which indicated the possibility of polyphenol compounds. The SEM micrograph showed that some of the silver nanoparticles were in the shape of tetrahedron or triangular like particle and spherical The SEM image analysis results using ImageJ software showed that most of the silver nanoparticles produced had the size of 100-300 nm. Furthermore, the EDX analysis result showed a peak count at 3 keV, which confirmed the formation of silver nanoparticles.
ANALISIS RESIKO KESELAMATAN DAN KESEHATAN KERJA DENGAN METODE HIRADC : STUDI KASUS DI INDUSTRI PEMBUATAN BOTOL MENGGUNAKAN PLASTIK PET (POLYETHYLENE TEREPHTALATE) CIMAHI Kurniawan, Ronny; D.M, Adinda Azzahra; C, Reygina Katon; Nurfauzi, Ahmad; Yolandha, Riny; Suhartono, Jono
Scientica: Jurnal Ilmiah Sains dan Teknologi Vol. 2 No. 7 (2024): Scientica: Jurnal Ilmiah Sains dan Teknologi
Publisher : Komunitas Menulis dan Meneliti (Kolibi)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.572349/scientica.v2i7.1881

Abstract

Keselamatan dan Kesehatan kerja (K3) merupakan aspek yang penting dalam lingkungan kerja untuk menjaga kesejahteraan karyawan dan produktivitas perusahaan. Namun pada pelaksanaanya masih saja terdapat kemungkinan resiko terjadinya kecelakaan dan penyakit akibat kerja. Di Perusahaan Pembuatan Botol Menggunakan Plastik PET (Polyethylene terephthalate) juga kemungkinan kecelakaan kerja bisa saja terjadi. Perusahan pembuatan botol plastic memiliki resiko terhadap cedera akibat kecelakaan Kerja. Artikel ini menyajikan sebuah tujuan mengenai implementasi program keselamatan dan Kesehatan kerja (K3) dalam konteks Industry Pembuatan Botol Plastic. Metode yang di pakai adalah menggunakan HIRADC (Hazard Identification Risk Assesment and Determaning Control) yang terdiri dari identifikasi masalah, penilaian resiko, dan pengendalian resiko-resiko potensial yang terkait denngan proses produksi. Hasil penelitian dari sembilan proses yang ada pada industry pembuatan botol, proses yang paling kecil memungkinkan resiko adalah proses pemasukan preform dan proses dengan kemungkinan resiko paling besar adalah proses blow. Melalui penerapan metode HIRADC secara teratur, perusahaan dapat meningkatkan K3, mengurangi insiden cedera, dan meniptakan lingkungan kerja yang lebih aman dan sehat bagi seluruh anggota tim produksi.
Pengurangan Kandungan Total Dissolved Solid (TDS), Konduktivitas dan Natural Organic Matter (NOM) pada Air Baku Bendungan Jatiluhur Menggunakan Kombinasi Membran dan Ion Exchange Suhartono, Jono; Salsabilla, Anastasya; Rosalina, Dewi
Jurnal Ilmiah Teknik Kimia Vol. 8 No. 2 (2024): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v8i2.38730

Abstract

The escalating demand for high-quality water in industrial applications has prompted the adoption of demineralization processes as an effective solution to eliminate disruptive minerals and ions. Water, vital for process and cooling needs, must meet strict standards to avoid issues like corrosion and heavy metal pollution. Contaminants pose risks, necessitating careful attention. This study assesses demineral water requirements based on Total Dissolved Solids (TDS), conductivity, and Natural Organic Matter (NOM). Examining membrane and ion exchange technologies, including Reverse Osmosis (RO), Ultrafiltration (UF), and ion exchange resins independently and in combination, the study also explores the impact of flow rate on TDS, conductivity, and NOM. Additionally, it investigates the effect of flow rate on sampling locations at the Jatiluhur Dam. Research results highlight the effectiveness of a combined RO and resin approach, achieving an 89% reduction in TDS, 88% in conductivity, and complete NOM removal.
Efektivitas Bioadsorben dalam Pengolahan Limbah Warna Methyl Orange dengan Menggunakan Kulit Buah Kakao (Theobroma cacao L) Suhartono, Jono; Fadillah, Fitri Nur; Pratiwi, Vibianti Dwi; Choerudin; Kurniawan, Ronny
Jurnal Ilmiah Teknik Kimia Vol. 10 No. 1 (2026): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v10i1.53944

Abstract

Cacao (Theobroma cacao L) is a plant that produces 75% of waste in the form of fruit peels. Cacao pod husk contains coarse fiber, cellulose, hemicellulose, and lignin so it has the potential to be used as an adsorbent. Textile liquid waste generally contains dyes that are difficult to decompose and have the potential to pollute the environment, one of which is methyl orange (MO) which is toxic and mutagenic. This study aims to evaluate the effectiveness of cacao peel as a bioadsorbent in the elimination of MO from liquid waste. The adsorption process is carried out using a packed column with a cacao bed weight of 100g. The initial concentration of the MO waste feed used is 5 ppm with an operating temperature at room conditions between 25 - 27oC. In this study, the influence of flow rate and pH was studied. The best results were compared to cacao bioadsorbents activated using the alkaline method. The results showed that the optimal conditions were achieved at a flow rate of 25 ml/min and pH 7 with an adsorption capacity of 19.81 × 10⁻⁵ mg/g. Cacao bioadsorbent with alkaline activation is able to increase the surface area and pore volume of the adsorbent, so that the adsorption capacity increases even though the activation residue has an effect on the chemical oxygen demand (COD) and total suspended solid (TSS) values.
Towards low-carbon ammonia: simulation and economic evaluation of blue ammonia with carbon utilization Pratiwi, Vibianti Dwi; Kunup, Sukmawati; Aulia, Nada Rahma; Hasan, Helmi Sayid; Suhartono, Jono
SINERGI Vol 30, No 1 (2026)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The proposed blue ammonia production considers technical, environmental, and economic aspects. The design of the blue ammonia using CCUS (Carbon Capture, Utilization, and Storage) technology in this study contributes to reducing carbon emissions and providing a more environmentally friendly ammonia supply in East Java, Indonesia, due to the availability of raw materials and geological storage locations for CO2 storage. Technically, the blue ammonia production was simulated with Aspen Hysys V.14.0. uses the Kellogg process, where the ammonia converter operates at a temperature of 437.60 °C and a pressure of 141.9 bar. From the environmental aspect, as much as 68.34 tons/h of ammonia produced produces CO2 71.36 tons/h, which is a total emission of 1.06 tons CO2/ tons NH3. In this study, CO2 delivery with a pipe length of 85 km  (ID:539.8mm; OD: 558.7mm) was simulated using default parameters in Aspen Hysys V.14.0. In economic calculations from APEA (Aspen Process Economic Analyzer), the manufacture of blue ammonia designed in this study is very large, with a TAC (Total Annual Cost) of $82.25x106/year and an LCOA (Levelized Cost of Ammonia) of $93.28x108/ tons NH3. This study demonstrates the integration of CCUS technology into ammonia production, resulting in a reduction of CO₂ emissions by 1.06 tons CO₂ per ton of ammonia produced. The proposed system provides a practical approach for improving the environmental sustainability of industrial chemical processes.
Co-Authors Afandi, Amira Rahmani Aulia, Nada Rahma C, Reygina Katon Chafidz, Achmad Choerudin D.M, Adinda Azzahra Dicky Dermawan Fadillah, Fitri Nur Hasan, Helmi Sayid Hidayat, Pratikno Junaedi, Harri Kunup, Sukmawati Nurfauzi, Ahmad Pratiwi, Vibianti Dwi Ronny Kurniawan Rosa, Bunga Mela Rosalina, Dewi Salsabilla, Anastasya Yolandha, Riny