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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Jurnal Riset Kimia Jurnal Litbang Industri Jurnal Ilmiah Biosaintropis (Bioscience-Tropic) Jurnal Ilmiah Pertanian Science and Technology Indonesia Unri Conference Series: Community Engagement Jurnal Teknik Kimia Indonesia International Journal of Community Service Jurnal Abdimas Bina Bangsa Journal of Bioprocess Chemical and Environmental Engineering Science Prosiding Konferensi Nasional PKM-CSR Jurnal Teknologi Kimia Unimal JUARA: JURNAL WAHANA ABDIMAS SEJAHTERA Leuser Journal of Environmental Studies JURNAL REKAYASA KIMIA & LINGKUNGAN Journal of Food Industrial Technology
Ida Zahrina
Universitas Riau
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Nursing Physics Public Health Social Sciences Other

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PENGARUH NISBAH STYRENE ACRYLIC DAN LATEKS DALAM BINDER TERHADAP KARAKTERISTIK CAT WATERPROOF nadimisia, tiara dwisca; Afrilianti, Azyarah; Bahruddin, Bahruddin; Wiranata, Arya; Zahrina, Ida; herman, syamsu; jahrizal, jahrizal
Jurnal Teknologi Kimia Unimal Vol. 13 No. 2 (2024): Jurnal Teknologi Kimia Unimal - Nopember 2024
Publisher : Chemical Engineering Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jtku.v13i2.19500

Abstract

Penelitian ini mengeksplorasi potensi penggunaan lateks karet alam dan polimer styrene acrylic sebagai bahan baku pembuatan cat waterproof ramah lingkungan. Tujuan penelitian adalah mengkaji pengaruh nisbah campuran lateks karet alam dan styrene acrylic terhadap karakteristik cat waterproof. Pengaruh yang ingin dikaji meliputi daya tutup, daya cuci, waktu kering sentuh, total kandungan padatan, dan ketahanan air. Lateks karet alam dengan Dry Rubber Content (DRC) 58% digunakan sebagai bahan dasar, sementara binder diproduksi menggunakan metode blending dengan polimer styrene acrylic dan sodium lauryl sulfate (SLS) sebagai bahan tambahan. Variasi nisbah styrene acrylic dan lateks karet alam yaitu (0:100);(10:90);(30:70);(50:50);dan (100:0) (%wt).  Binder tersebut dicampur ke dalam cat dengan kadar 70%. Hasil penelitian menunjukkan bahwa semakin besar nisbah styrene dalam binder maka nilai washability dan total padatan semakin meningkat sehingga waktu kering sentuh semakin cepat dan cat yang dihasilkan akan lebih tahan lama terhadap rembesan air. Semua sampel uji tersebut memperlihatkan karakteristik cat yang memenuhi standar, baik SNI maupun ASTM. Karakteristik tersebut meliputi washability resistance >1200 siklus, total padatan >45%, waktu kering sentuh <60 menit, dan ketahanan terhadap air berkisar 8-10 hari. 
Improving the Environmental Performance of Palm Biodiesel via AgNO₃-Assisted Removal of Polyunsaturated Fatty Acids Helwani, Zuchra; Zahrina, Ida; Amraini, Said Zul; Idroes, Rinaldi; Neonufa, Godlief Frederick; Rahman, Sunarti Abd
Leuser Journal of Environmental Studies Vol. 3 No. 1 (2025): April 2025
Publisher : Heca Sentra Analitika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60084/ljes.v3i1.274

Abstract

Indonesian biodiesel products commonly exhibit low oxidative stability and high cloud points, which limit their performance and widespread use. These drawbacks are primarily due to the high content of polyunsaturated fatty acids (PUFAs) in the fatty acid methyl ester (FAME) mixture that constitutes biodiesel. A more suitable biodiesel composition includes higher proportions of saturated and monounsaturated fatty acids, which offer better combustion properties, higher cetane numbers, and greater resistance to oxidative degradation. In contrast, PUFAs promote oxidation reactions, resulting in fuel instability, increased sludge formation, and higher emissions of unburned hydrocarbons, negatively impacting both engine performance and the environment.This study investigates the use of silver nitrate (AgNO₃) as a selective extraction agent to remove PUFAs from palm oil-derived FAME. The goal is to identify the most effective biodiesel-to-AgNO₃ volume ratio for separating saturated fatty acid fractions from unsaturated ones, in order to produce a more stable and environmentally friendly biodiesel. Experimental results show that a 1:2 volume ratio significantly reduces the iodine number, from 57.22 to 47.38 g I₂/100 g sample, indicating a decrease in unsaturated compounds. Furthermore, oxidative stability improved from 11.18 hours to 11.69 hours after extraction. The removal of PUFAs not only improves the fuel's storage and combustion stability but also enhances its environmental profile. More stable biodiesel burns more completely, reducing emissions of particulate matter and greenhouse gases, and contributing to cleaner air and lower environmental impact. Thus, PUFA extraction using AgNO₃ presents a promising approach for improving the sustainability and performance of palm-based biodiesel fuels.
Application Of Wastewater Treatment Technology In Tofu Industry, Pekanbaru City Ida Zahrina; Elvi Yenie; Eriyati
International Journal Of Community Service Vol. 2 No. 2 (2022): May 2022 (Indonesia - Malaysia)
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijcs.v2i2.88

Abstract

Tofu industry produce wastewater with low pH and high pollutant parameters, such as BOD, COD, TSS. Therefore, it is necessary to have a wastewater treatment plant so as not to pollute the environment and cause health problems. The purpose of this community service activity is the application of appropriate technology for processing liquid waste in the tofu industry in Pekanbaru City with a combination of equalization, filtration and phytoremediation processes. This service activity includes several stages, namely counseling to provide understanding to partners about the importance of treating waste, followed by building a liquid waste treatment plant and the application of liquid waste treatment technology. The sewage treatment plant consists of 3 concrete tanks that consisting of equalization, filtration (using coral, porous plastic, jute, gravel, and sand as filter media) and phytoremediation (using water hyacinth plants). This activity has a very positive effect for the owners of tofu industry. The levels of BOD, COD and TSS decreased significantly after the application of this wastewater treatment technology.
Paper Review: Aplikasi DES (Deep Eutectic Solvents) sebagai Katalis Hijau Aisha, Farra; Zahrina, Ida; Sunarno
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 3 No 1 (2022): Journal of Bioprocess, Chemical and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.3.1.53-76

Abstract

Deep eutectic solvents (DES) were intoduced to overcome the drawbacks of conventional catalysts (H2SO4, HCl, H3PO4, p-toluene sulfonic acid) due to several advantages; biodegradibility, cheap raw materials, high thermal and chemical stabilities, low melting point, low volatility, low toxicity, simple preparation as well as its physicochemical properties (melting point, acidity, density, viscosity, solubility and polarity) are easy to modify. DES is a mixture of two or more compounds of hydrogen bonding acceptor (HBA) and hydrogen bonding donor (HBD). The hydrogen bond formed between HBA/HBD mixture resulting to lower lattice energy thus lowering its melting point. Previous authors had reported the application of DES as reaction medium exhibit excellent catalytic activity on product yields, conversions and reusabilities. The aim of this article is to attract attention more comphrehensive studies on the utilization of DES as potential green catalyst.
PELATIHAN DIGITAL MARKETING, BRANDING DAN PEMASARAN ONLINE BERBASIS MARKETPLACE DAN SOSIAL MEDIA BAGI PENGEMBANGAN USAHA SAGU LICIOUS UNIT KEWIRAUSAHAAN MAHASISWA Musbar, Hafidawati; Yenie, Elvi; Zahrina, Ida; Johan, Vonny Setiaries; Eriyati, Eriyati; Irfandy, Bagus Duhan; Islamy, Muhammad Agung
JUARA: Jurnal Wahana Abdimas Sejahtera Volume 4, Nomor 1, Januari 2023
Publisher : Jurusan Teknik Lingkungan Fakultas Arsitektur Lanskap dan Teknologi Lingkungan, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/juara.v4i1.16155

Abstract

Sago Licious is a student business at the University of Riau which is engaged in the production and marketing of processed sago-based products that was founded in 2020, this business continues to grow and has become one of the MSMEs that is slowly exploring the market in Meranti Islands Regency. However, the obstacle that is a big obstacle for business units today is weak marketing because it only focuses on meeting local needs and does not fully understand how to utilize the marketplace and social media as a capable digital marketing tool. In addition, promotion and branding patterns have not been implemented optimally. Therefore, this training is carried out as a means of increasing partners' knowledge. After the training, it is hoped that the output produced will be partners able to implement the correct marketing strategy, develop market share based on digital marketing and be able to apply branding and promotion concepts appropriately. This activity begins with a site survey and coordination with partners to identify problems. Next, a brainstorming was carried out with the PkM team to determine the solutions to be offered to partners, then an offline FGD was carried out to describe the program along with the schedule of activities to be carried out. The result of this activity was the marketing development of the Sago Licious Student Entrepreneurship Unit, the activities went well and smoothly and there were interactive discussions between resource persons and activity participants, participants also easily understood the material with clear presentation of the material and easy-to-understand training modules
Pembuatan Minyak Atsiri dari Komoditas Alam Daun Kayu Putih Al'farisi, Cory Dian; Zahrina, Ida; Drastinawati, Drastinawati; Khairat, Khairat; Herman, Syamsu; Utami, Anggia Afza; Alfajar, Fariz
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 5 No 1 (2024): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.5.1.29-35

Abstract

Eucalyptus oil is one of the essential oil obtained from the extraction of eucalyptus leaves. The purpose of this study is to evaluate the effect of variations in sample treatment and extraction time on the yield of eucalyptus essential oil and determine the characteristics of eucalyptus essential oil produced by the hydro distillation method. Variations in sample treatment were carried out by chopping, crushing, and blending dry eucalyptus leaves. 500 grams eucalyptus leaves are weighed and put in a 2000 mL flask. ±1000 mL of distilled water was added and the extraction process was carried out for 5, 6 and 7 hours. The results showed that the highest yield was obtained from blending treatment with an extraction time of 7 hours with a yield of 0.58%. Characteristic tests on eucalyptus leaf essential oil included: color, odor, specific gravity, refractive index and solubility in ethanol 80%. From the analysis of the test results, the color of eucalyptus oil is cloudy. The odor test results obtained are the distinctive odor of eucalyptus. The best value of eucalyptus oil specific gravity was 0.913 on crushed leaves for 6 hours. In the ethanol solubility test, the resulting oil dissolves in ethanol and a clear solution is obtained. The highest refractive index value of eucalyptus oil on chopped leaves for 5 hours is 1.469. Eucalyptus oil has a quality in accordance with the quality requirements of SNI 3954: 2014.
Sintesis ZSM-5 dari Fly Ash Sawit Sebagai Sumber Silika dengan Variasi Nisbah Molar Si/Al dan Temperatur Sintesis Zahrina, Ida; Yelmida, Yelmida; Akbar, Fajril
Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 2 (2012): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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

Abstract

Palm fly ash is biomass/waste in the palm oil industry. Palm fly ash has high content of amorphous silica. ZSM-5 is one of synthetic zeolite which is widely used as catalyst in industries. ZSM-5 has high activity and selectivity to several hydrocarbon conversion reaction. Hence, ZSM-5 is being investigated for the conversion of vegetable oil to hydrocarbon. It can be synthesized from silica and alumina. Sources of silica that can be added to the ZSM-5 synthesis, are sodium silicate, hydrated silica, water glass sol silica, gelled silica, clay, precipitated silicaand calcined silica. ZSM-5 was synthesized free-template by using palm fly ash as silica source. In this research synthesis of ZSM-5 was carried out in autoclave at 18 hours and Na2O/Al2O3 molar ratio by various molar ratio from 30 to 40 and temperature in the range of 150 to 190 oC. The product was then analized using FTIR method. The best ZSM-5 product was obtained at Si/Al molar ratio of 40 and process temperature of 150 oC. Keywords: FTIR, Palm fly ash, ZSM-5
Perengkahan PFAD (Palm Fatty Acid Distillate) Dengan Katalis Zeolit Sintesis Untuk Menghasilkan Biofuel Yelmida, Yelmida; Zahrina, Ida; Akbar, Fajril
Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 1 (2012): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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

Abstract

Palm Fatty Acid Distillate (PFAD) is a by-product of the manufacture of cooking oil. The PFAD has a high potential to be used as raw material for biofuel by catalytic cracking because it is a long-chain hydrocarbon. This research aims to study the influence of time and temperature conversion reaction to catalytic cracking reaction using zeolite catalyst synthesis. The PFAD cracking was taken place in a batch stirred tank reactor at the temperature of 240, 260, 280, 300oC for 60, 80, 100, 120 minutes. The changes in functional groups of cracking products were analyzed using FTIR (Fourier Transform Infra Red), while the analysis of components contained in the product was conducted using GCMS (Gas Chromatography Mass Spectra) analysis. The highest reaction conversion result (98.7%) was obtained at a temperature of 280oC and the reaction time of 100 minutes. The cracking process did not produce biofuels, but the compounds formed were in the form of tridecanoic acid (C13H26NO2), Cholest-8-en-3-ol (C28H48O) and methyl vinyl ketone (C4H6O).Keywords: FTIR, GCMS, PFAD, zeolite synthesys
Sintesis Natrium Silikat Menggunakan Silika dari Pasir Pantai Bengkalis Azis, Yelmida; Ida Zahrina; Mutamima, Anisa; Alfarisi, Cory Dian; Nurfatihayati
Jurnal Riset Kimia Vol. 15 No. 1 (2024): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v15i1.640

Abstract

Sodium silicate (Na2SiO3) is a chemical industrial material that is widely used as a metal cleaner, adhesive, and as a filler in the detergent, soap and toothpaste industries. Sodium silicate can be synthesized from silica dioxide (SiO2), which can be obtained through an extraction process from materials containing silica such as sand, glass bottle waste or rice husks. In this research, the synthesis of Na2SiO3 was carried out using silica extracted from Bengkalis beach sand using the acid leaching method, with a 3M HCl solution. The results of X-ray fluorescence (XRF) analysis of Bengkalis Beach sand showed that the silica content reached 89.1%. This research aims to determine the effect of the molar ratio of the NaOH reactant to the extracted SiO2 (2:1, 3:1 and 4:1) on the Na2SiO3 produced. The synthesis of Na2SiO3 was carried out using the hydrothermal method at atmospheric pressure, by reacting a 4M NaOH solution with 10 g of silica from Bengkalis sand, by heating at 110oC for an hour and stirring at 600 rpm. A molar ratio of 2:1 is the best ratio which produces 9.427g of Na2SiO3. From analysis using Fourier Transform Infrared (FTIR) spectroscopy, the spectrum patterns obtained are suitable for compounds containing silanol (≡Si-OH) and siloxane (≡Si-O-Si≡) groups. The X-ray diffraction (XRD) pattern of the synthesized compound is in accordance with standard sodium silicate. The Na2SiO3 obtained has a crystal diameter of 44.8 nm with an agglomerate-shaped morpology.
Optimasi Proses Cooking Tandan Kosong Kelapa Sawit dengan Metode Soda Metilantrakuinon (MAQ) dan Digester Liquor Tersirkulasi untuk Produksi Dissolving Pulp Fadila, Rawdatul; Evelyn; Zahrina, Ida
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 6 No 2 (2025): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.6.2.83-99

Abstract

Dissolving pulp is a raw material in the textile, plastic, and other cellulose-derived products industries, which has a high content of α-cellulose (≥90%), high degree of brightness, low hemicellulose and lignin content. Demand for dissolving pulp continues to increase, so a sustainable alternative raw material source is required. Empty bunches from oil palm industry waste can potentially be processed into dissolving pulp. This study aims to determine the effect of cooking temperature, cooking time and NaOH concentration on yield, kappa number and viscosity and to obtain the optimum conditions for cooking oil palm empty bunches for dissolving pulp using 2-methylantraquinone (MAQ) soda with a circulating liquor digester. Prehydrolysis of the raw materials was conducted at 150 °C for 180 min, followed by soda cooking with 0.1% MAQ at 140–160 °C for 120–240 min using NaOH concentrations of 10–20%. Optimization was conducted using Design Expert software with Response Surface Methodology (RSM) model Central Composite Design (CCD). Pulp from the cooking process produced yields with a range of 23.4-51.56%, kappa numbers of 6.97-19.44 and viscosity of 6.21-9.13 cP. Optimal conditions were obtained from RSM at 160°C, 120 minutes cooking time, and 20% NaOH concentration, with an estimated yield of 46.9%, kappa number of 10.22, and viscosity of 7.06 cP. This study confirms that the production of dissolving pulp from oil palm empty fruit bunches for dissolving pulp with MAQ soda process and circulating digester liquor was successfully carried out.
Co-Authors Abd Rahman, Sunarti Ady Maulana Afrilianti, Azyarah Ahmad Fadli Aisha, Farra Al'farisi, Cory Dian Alfajar, Fariz Alfarisi, Cory Dian Almasdi Syahza Aminuyati Arya Wiranata B Bahruddin Bagus Duhan Irfandy Bahruddin Bahruddin Bahruddin Bahruddin Bahruddin Ibrahim Bahrudin Bahrudin Chatarina Umbul Wahyuni Dewi, Yuli Piana Djaimi Bakce Drastinawati Drastinawati, Drastinawati Dyah Tasya Elvi Yenie Elvi Yenie Elvi Yenie, Elvi Eriyati Eriyati Eriyati Eriyati, Eriyati Evelyn Fadila, Rawdatul Fadillatul Nisa Fajril Akbar Firman Maulana Hafidawati, Hafidawati Hazzamy, Muhammad Asyaf Hendro Ekwarso Hutagaol, Nurhidayah Indra Yasri Irdoni Irdoni Irfandy, Bagus Duhan Islamy, Muhammad Agung Israyandi Israyandi Ivan Fadhillah Iwan Kurniawan Iwan Kurniawan Iwan Setiawan Jahrizal Julhijah, Noni Khairat, Khairat Khobar Bahari Pane Komalasari Komalasari Komang, Hendri Laisa Husraini Lusiana Sri Wahyuni M Asyraf Hazzamy Mira Dharma Mira Dharma Susilawaty Muhammad Agung Islamy Mulya, Dynna Ardilla Putri Musbar, Hafidawati Mutamima, Anisa Nadimisia, Tiara Dwisca Nanda, Widia Rizki Neonufa, Godlief Frederick Niken Triani Klaway Reza Nova Ramadhani Farnas Nurfatihayati Rahman, Sunarti Abd Randy Lesmana Putra Ricfan Anggriawan Rinaldi Idroes Rizki Agustina Rudi Setiawan Setairies, Vonny Setiaries, Vonny Silvia Reni Yenti Siti Rahmalia Sri Rezeki Muria SUNARNO Sunarno Sunarno Sunaryo Sunaryo Syamsu Herman Syarfi Daud Syarfi Syarfi Syoffinal Syoffinal Tengku Firly Musfar, Tengku Firly Teuku Azhari Hassan Trisuciati Syahwardini Ulfaa, Suci Mas’ama Utami, Anggia Afza Vonny Setiaries Johan Wiranata, Arya Yelmida Azis Yelmida Aziz Yulia, Indri Zuchra Helwani Zuchra Helwani, Zuchra