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Integrated Wastewater Processing using Electrogoagulation Method into Oxyhydrogen (HHO) for Renewable Energy Rusdianasari, Rusdianasari; Taqwa, Ahmad; Syarif, Aida; Bow, Yohandi
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 1 (2024): February 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i1.48

Abstract

Integrated wastewater is one of the contributors to wastewater that can harm the environment, thus fast industrial expansion must be followed by advancements in wastewater processing systems. Because the presence of contaminants in integrated wastewater can cause several issues for persons and the environment, integrated wastewater processing is required. One type of integrated wastewater processing is the production of hydrogen gas as a new and sustainable energy source. The electrocoagulation process may be used to convert integrated wastewater into hydrogen gas. One type of integrated wastewater processing is the production of hydrogen gas as a new and sustainable energy source. The electrocoagulation process may be used to convert integrated wastewater into hydrogen gas. In this study, oxyhydrogen (HHO) was produced from integrated wastewater utilizing two process stages: integrated wastewater processing with an electrocoagulator, followed by the process of getting HHO using an oxyhydrogen reactor. A NaOH catalyst was applied at different concentrations of 0.1 M, 0.2 M, 0.3 M, 0.4 M, and 0.5 M with an electrolysis period of 5 minutes to produce hydrogen gas. The addition of the NaOH catalyst is intended to find the optimal concentration for the production of hydrogen gas. According to the findings of the study and analysis, the optimal NaOH catalyst concentration for producing hydrogen gas is 0.5 M with hydrogen content of 346 mg/m3.Keywords: electrocoagulation, oxyhydrogen, integrated wastewater, renewable energy
Conversion of Wasted Oil to Biodiesel Using CaO from Chicken Egg Sheets as a Catalist Jabborov, Behzod; Syarif, Aida; Yerizam, Muhammad
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 3 (2024): IJRVOCAS - December
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v4i3.311

Abstract

This research explores the use of used cooking oil as a primary feedstock in biodiesel production, with the addition of a calcium oxide (CaO) catalyst derived from eggshells. The process begins by filtering the used cooking oil to remove impurities, after which the oil undergoes tests to assess its density, viscosity, acid number, free fatty acid content, and water content. These initial steps are crucial to ensure the quality and readiness of the oil for further processing. Following this, the CaO catalyst is produced from eggshells through an impregnation process, a method that allows the transformation of eggshells into an effective catalyst. The study employs a heterogeneous catalyst system, where the CaO catalyst, characterized by its micro-sized particles, is used in the transesterification process. This approach is chosen as an alternative to the conventional use of homogeneous catalysts, providing potential advantages in terms of reusability and environmental impact. The production of biodiesel is conducted in two main stages: esterification and transesterification. In both stages, the CaO from eggshells is utilized as a catalyst, and the filtered used cooking oil serves as the raw material for biodiesel synthesis. The research identifies the optimal conditions for biodiesel production, which include heating the mixture to a temperature of 900°C, using a CaO catalyst amounting to 1% of the weight of the used cooking oil, and maintaining a reaction time of 60 minutes. Under these conditions, the study achieved a biodiesel yield of 62.17%. This research highlights the effectiveness of using waste materials such as eggshells and used cooking oil in producing biodiesel, offering a sustainable and environmentally friendly alternative to traditional methods.
The Effect of Catalyst Amount and Time on the Results of Converting Rubber Wood Chip Waste by Catalytic Pyrolysis into Alternative Energy Patrio, Aditia; Rusnadi, Irawan; Syarif, Aida
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 8, No 2 (2023): EDISI SEPTEMBER 2023
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v8i2.5063

Abstract

In the rubber plantations of South Sumatra, covering an area of 1,013,969 hectares, there exists an underutilized waste stream known as rubber wood waste. This waste can be subjected to pyrolysis to Yield char, bio-oil, and syngas products. This research is centred on pyrolyzing rubber wood waste, employing various zeolite catalysts and time durations, to explore the potential of alternative energy sources and calculate the Specific Energy Consumption (SEC). The pyrolysis results, with variations in catalysts and time, indicate that the optimal combination is at a temperature of 390°C, using 6% zeolite catalyst, and a duration of 70 minutes. The resultant Yields comprise char at 21.73% with a calorific value of 6264.87 kcal/g, bio-oil at 22.50%, and syngas at 45.28% with a CH4 content of 55.52%. The most SEC-optimal variation is at a temperature of 390°C, using a 6% zeolite catalyst, and 30 minutes, with an SEC value of 3.25 kWh/L.
Potential of Activated Coal Fly Ash as an Adsorbent Material in Carbon Capture Technology Putri, Rizki Aria; Syarif, Aida; Kalsum, Leila
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 5 No. 2 (2025): IJRVOCAS - August
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v5i2.379

Abstract

The rising carbon dioxide (CO₂) emissions from biomass combustion processes have become a central concern in climate change mitigation. This study explores the utilization of coal fly ash as a cost-effective and environmentally friendly adsorbent in carbon capture technology. Thermal activation was applied to fly ash at temperatures of 600°C, 700°C, and 800°C to enhance its surface characteristics. Characterization using Iodine Number and X-ray Diffraction (XRD) revealed significant improvements in adsorptive properties, particularly at 600°C. The findings confirm that activated fly ash possesses high potential as a CO₂ adsorbent due to the presence of crystalline calcium oxide (CaO), which facilitates carbonate formation. This research supports the integration of waste-based adsorbents in sustainable CO₂ mitigation strategies.
Study on the Utilization of Egg Shells as CO2 Adsorbent in the Combustion Process of Empty Palm Fruit Bunches Pratama, Andrian Putra; Yerizam, Muhammad; Syarif, Aida
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 5 No. 2 (2025): IJRVOCAS - August
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v5i2.429

Abstract

The problem of carbon dioxide (CO2) emissions from the combustion of biomass, such as empty palm fruit bunches (TKKS), is a significant challenge in climate change mitigation efforts. This research aims to examine the effectiveness of eggshells as a CO2 adsorbent in the combustion process of empty palm fruit bunches, and to analyze the effect of adding adsorbent mass on exhaust gas emissions. Eggshells were calcined at 900°C to produce calcium oxide (CaO), then characterized using XRD and Iodine Number tests, and tested in a CO2 adsorption system using gas flow. The XRD test results showed that calcined eggshells have a crystalline structure with a crystalline level of 93.54%, indicating the dominance of CaO compounds as the active component. The Iodine Number test yielded the highest value of 330.018 mg/g at a mass of 2 grams, which indicates good surface area and porosity. CO2 adsorption testing showed that an adsorbent mass of 15 grams was able to reduce CO2 concentration from 974 ppm to 212 ppm, while adding adsorbent mass above 30 grams did not provide a significant reduction due to the increasing initial CO2 concentration. Overall, the results of this study indicate that eggshells have the potential to be an effective, environmentally friendly, and organic waste-based CO2 adsorbent. Their utilization can be an alternative simple carbon capture technology for biomass combustion systems, while also supporting sustainable household waste management.
Characterization of Empty Fruit Bunch of Palm Oil as Co-firing Biomass Feedstock Rusdianasari, Rusdianasari; Arissetyadhi, Iwan; Kalsum, Leila; Bow, Yohandri; Syarif, Aida; Arifin, Fatahul
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 7 No. 1 (2023)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v7i1.237

Abstract

Empty fruit bunches of Palm Oil (EFB) are a potential source of biomass energy because they contain lignocellulose (cellulose, hemicellulose and lignin) so that they can be converted into biopellets for co-firing. The purpose of this research is to determine the raw material properties of EFB in the form of proximate, ultimate, lignin, and biopellets. Using a pelletizer, biopellets are created by adding starch as an adhesive. The raw material characteristics of EFB from proximate analysis revealed moisture content of 11.98%, ash content of 6.53%, volatile matter content of 65.15%, and fixed carbon content of 16.44%. According to the final study results, the biopellets from empty fruit bunches included 48.53% C, 6.05% H, 0.32% N, 36.8% O, and 0.08% Sulphure. The atomic ratio obtained from the final analysis results could be used to determine the calorific value that can be used for fuel; the biopellet calorific value of EFB is 4,583 kcal/kg, with Hardgrove Grindability Index (HGI) values of 78.6 and Ash Fusion Temperature (AFT) 1100oC. The lower the value of the atomic ratio contained, the higher the calorific value contained in a specific fuel.
Studi Pemanfaatan Char Batubara Kualitas Rendah Sebagai Material Pembuatan Baterai Sel Kering dengan Variasi Aktivator dan Elektrolit Dinda, Syahranie Kurnia; Sabila, Sabila; Putri, Amalia; Syarif, Aida; Effendy, Sahrul; Manggala, Agus; Septiana, Iriani Reka
Jurnal Penelitian Sains Vol 27, No 3 (2025)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56064/jps.v27i3.1247

Abstract

Indonesia menjadi negara dengan cadangan batubara terbesar di kawasan Asia-Pasifik. Namun, 68% batubara memiliki nilai keekonomian yang rendah sejalan dengan kuali-tasnya. Untuk peningkatan mutu dan nilai keekonomiannya terciptalah program hilirisasi batubara guna menganalisis potensi dan menciptakan diversifikasi batubara sebagai energi alternatif. Baterai menjadi salah satu pilihan alternatif penyimpanan energi yang aman dan mudah. Pada penelitian ini, digunakan batubara lignit sebagai bahan baku pasta baterai dan bertujuan untuk mengetahui pengaruh dari aktivator dan larutan el-ektrolit terhadap daya baterai yang dihasilkan. Sebelum menjadi bahan baku baterai sel kering, batubara lignit akan melalui proses pirolisis guna mengurangi kadar air (moisture) dan kadar zat terbang (volatile matter). Char batubara hasil pirolisis diaktivasi menggunakan larutan KOH 10%, 11% dan 12%. Char pirolisis yang tidak diaktivasi mempunyai bilangan iodine sebesar 735,19 dan bilangan iodine tertinggi terdapat pada char pirolisis yang teraktivasi KOH 12% yaitu sebesar 2.085,29. Masing-masing char ba-tubara teraktivasi divariasikan dengan larutan elektrolit berupa NaOH 0,1 M, 0,5 M dan 1 M. serta H2SO4 0,1 M, 0,5 M dan 1 M. Angka tertinggi diperoleh dari baterai dengan char ter-aktivasi KOH 12% dan elektrolit NaOH 1,5 M, yaitu tegangan 1,372 V dan arus 7,91 mA. Sedangkan angka terendah diperoleh dari char yang tidak teraktivasi dengan elektrolit H2SO4 0,5 M, yaitu tegangan 0,447 V dan arus 0,19 mA.