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All Journal JIPSINDO (Jurnal Pendidikan Ilmu Pengetahuan Sosial Indonesia) Pedagogik Journal of Islamic Elementary School Edukasi Islami: Jurnal Pendidikan Islam Jurnal Riset dan Inovasi Pembelajaran Jurnal Konsepsi Jurnal Pengabdian Literasi Digital Indonesia Journal of Innovative and Creativity Jurnal Pelita: Jurnal Pembelajaran IPA Terpadu PESARE: Science and Engineering Service Journal JURNAL REKAYASA KIMIA & LINGKUNGAN Bilancia : Jurnal Studi Ilmu Syariah dan Hukum
Hisbullah Hisbullah
Jurusan Teknik Kimia Fakultas Teknik Universitas Syiah Kuala
Religion Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

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Journal : JURNAL REKAYASA KIMIA

 1 
Pembuatan Papan Komposit dari Plastik Daur Ulang dan Serbuk Kayu serta Jerami Sebagai Filler Farid Mulana; Hisbullah Hisbullah; Iskandar Iskandar
Jurnal Rekayasa Kimia & Lingkungan Vol 8, No 1 (2011): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Abstract

Production of composites was done by mixing the filler and matrix. The common matrix used to produce composite is plastic ore with types of poly propylene, poly ethylene and others. To know the characteristics of composite boards made from recycled plastic type poly ethylene so this research was conducted. This research aims to create a composite board made of solid waste sawdust and straw as a filler and recycled plastics as the matrix and to find out more details of the influence of variable solid waste types and ratio of solid waste weight and plastic toward the quality of the composite board product. Composite board manufacturing process was carried out by hot press method at a temperature of 145 oC for 20 minutes. The composite board products are tested on value of hardness, tensile strength, and thermal value. The results showed that the use of sawdust as a filler resulted the composite hardness value that is better (R79,5) compared with straw (R67) at a ratio of filler composition: matrix of 80:20 respectively. The use of sawdust also gives the value of tensile strength of 6.86 MPa that is better than the using a straw that valued of 3.62 MPa at composition ratio of filler: to matrix (60:40). Largest amount of heat needed to melt the composite boards are 31.19 J/g and 14.02 J/g at composition ratio sawdust: recycled plastics of 80:20 and at composition ratio straw: recycled plastics of 80:20, respectively. Visually composite board with a composition of sawdust:plastic HDPE 50:50 looks better with bright colors and shiny.Keywords: Composite, Solid waste, Plastic, Matrix, Filler, Poly ethylene
Carbon Dioxide (CO2) Separation Study Using Chemically Activated Serpentine as an Adsorbent Dhedia, Muhammad Fannka; Mahidin, Mahidin; Husin, Husni; Hisbullah, Hisbullah; Razali, Nasrullah; Reza, Alvan Ade; Hadi, Abdul
Jurnal Rekayasa Kimia & Lingkungan Vol 19, No 2 (2024): Jurnal Rekayasa Kimia & Lingkungan (December, 2024)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v19i2.41399

Abstract

The increase in carbon emissions resulting from industrial activities has become a major concern for environmental and climate conditions. Carbon Capture and Storage (CCS) represents a significant effort to mitigate the CO2 problem. Aceh Province possesses a potential distribution of serpentine, which may serve as an effective material for CCS applications. This study evaluates the effects of gas flow rate, particle size, sorbent weight, and pressure on CO2 adsorption using chemically activated serpentine. The activation process involved hydrochloric acid (HCl) at three concentrations: 8%, 9%, and 10%, with particle sizes of 50 mesh, 100 mesh, and 150 mesh. Activation was conducted at room temperature with an acid-to-serpentine ratio of 10:1 for 30 minutes. Adsorption tests were performed at ambient temperature under pressures of 2, 3, and 4 bar, with adsorption times of 30, 60, and 120 minutes. Results indicate that activated serpentine treated with 9% HCl and a particle size of 150 mesh achieved the highest performance, demonstrating an adsorption efficiency of 33.01% and an adsorption capacity of 82.22% (0.0488 g CO2/g adsorbent) at a pressure of 2 bar. Both the Langmuir and Freundlich isotherm models closely fit the data (R = 1). This study concludes that HCl activation significantly enhances the capacity and efficiency of serpentine as a CO2 adsorbent.
Synthesis of Struvite Fertilizer (MgNH4PO4.6H2O) from Cow Urine and Bittern by Precipitation Technique Fazira, Zetta; Apriansyah, Ahmad Muhar; Al Attharsyah, Teuku Zibran; Mukhriza, Teuku; Amsi, Utari Yasmine; Hisbullah, Hisbullah
Jurnal Rekayasa Kimia & Lingkungan Vol 19, No 2 (2024): Jurnal Rekayasa Kimia & Lingkungan (December, 2024)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v19i2.28675

Abstract

The need for fertilizers has significantly increased due to the expanding global population and the mounting pressure on agricultural systems to increase food production. Fertilizers are essential in upgrading soil fertility and increasing crop productivity, making them indispensable in contemporary agriculture. Extensive usage of chemical fertilizers has led to environmental issues such as soil deterioration, water contamination, and the exhaustion of non-renewable resources like phosphate rock. Phosphorus, one of the essential macronutrients for plants, is a critical component of commercial fertilizers. Struvite, with its high phosphate content, presents a viable alternative to conventional fertilizers. Struvite (MgNH4PO46H2O) is a crystalline compound comprising magnesium, ammonium, and phosphate. Cow urine, which contains nitrogen, phosphate, and potassium, can serve as a nutrient source for plants. In the context of fertilizer production, bittern serves as a source of magnesium. This study investigated the production of struvite from cow urine and bittern using a precipitation technique. The study aimed to determine the optimal conditions for maximizing struvite production, focusing on the ratio of cow urine to bittern and the storage duration of cow urine. The research involved the preparation and characterization of raw materials, struvite synthesis, and the analysis of struvite characteristics. The optimal conditions were found to be a molar ratio of cow urine to bittern of 1:1 and a cow urine storage time of one week. UV-VIS spectrophotometry was utilized to analyze phosphate and ammonia contents, yielding optimal values of 72.417 mg/kg and 0.715 mg/kg, respectively. XRF analysis indicated a magnesium content of 26.000 mg/kg. SEM and XRD analyses revealed that the morphology of the struvite was orthorhombic at the optimum conditions. FTIR analysis was used to identify N-H, P-O, and water vibrations.
Co-Authors A Tenripadang Abdul Hadi Al Attharsyah, Teuku Zibran Ambarita, Aulia Chintia Amsi, Utari Yasmine Andi Rezal Jauhari Aniati Aniati Annisa Zalsabillah Apriansyah, Ahmad Muhar Asmita, Tarisa Baderiah Baderiah Bungawati Bungawati, Bungawati Dhedia, Muhammad Fannka DS, Syahiddin Edi Munawar Farid Mulana Fazira, Zetta Firman Firman Harianto, Erwin Hawir Rampean, Nur Hamida Husni Husin Idris Idris Iksan M Iskandar Iskandar Janna, Janna Kamaruzzaman, Suraiya Mahidin Mahidin Medyan Riza Mirnawati Mirnawati Muhammad Affan Ramadhana Mukhlishien, Mukhlishien Munawwarah, Sitti Nasution, Fahrizal Purwanti, Rahma Razali, Nasrullah Retoliah Retoliah Reza, Alvan Ade Rustan, Edhy Salmilah Salmilah, Salmilah Sitti Nadirah Sofyan Sukirman Sukirman Syaubari Syaubari Teuku Mukhriza Usman Usman Yuliana Sy