cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Wahyu Rinaldi
Contact Email
wahyu.rinaldi@unsyiah.ac.id
Phone
+6281360927917
Journal Mail Official
rkl@che.unsyiah.ac.id
Editorial Address
Gedung Teknik Kimia UNSYIAH Jl. Tgk. Syech Abdurrauf No. 7, Darussalam, Banda Aceh Propinsi Aceh, 23111, INDONESIA
Location
Kab. aceh besar,
Aceh
INDONESIA
Jurnal Rekayasa Kimia & Lingkungan
Published by Universitas Syiah Kuala
ISSN : 23561661     EISSN : 14125064     DOI : https://doi.org/10.23955/rkl.v17i2.25520
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology
The Journal of Chemical Engineering and Environment is an open access journal that publishes papers on chemical engineering and environmental engineering. The following topics are included in these sciences: a. Food and biochemical engineering b. Catalytic reaction engineering c. Clean energy technology d. Environmental and safety technology e. Fundamentals of chemical engineering and applied industrial engineering f. Industrial chemical engineering g. Material science engineering h. Process and control engineering i. Polymer and petrochemical technology j. Membrane technology k. Agro-industrial technology l. Separation and purification technology m. Environmental modelling n. Environmental and information sciences o. Water and waste water treatment and management p. Material flow analysis q. Mechanisms of clean development
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 8 Documents
 1 
Search results for , issue "Vol 7, No 1 (2009): Jurnal Rekayasa Kimia " : 8 Documents clear
Gas Absorption by Alkaline Solution in a Cyclone Scrubber: Experimental and Modeling Study Mariana Mariana; K. Sumida; T. Satake; A. Maezawa; T. Takeshita; S. Uchida
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (322.933 KB)

Abstract

Experimental and modeling studies have been conducted on a CO2 absorption in a cyclone scrubber operated at room temperature. The effects of parameters such as the initial concentration of alkali in the solution and the liquid – gas ratio on the CO2 absorbed flux were experimentally and theoretically investigated. A theoretical study has been performed using a mathematical model based on the absorption in the liquid droplet with instantaneous reaction, in the inlet duct of the cyclone and in the cyclone itself. The results from the model were compared with experimental data and showed satisfactory agreement.  Keywords: CO2 removal, mathematical model, wet cyclone scrubber
The Study Effect of Fill and React Period Change on the Performance of the Sequencing Batch Reactor Azwar Azwar
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.341 KB)

Abstract

The operation of the sequencing batch reactor (SBR) can be optimized by controlling the dissolved oxygen concentration, the dosage of external carbon, nitrification and denitrification, and the phase length of aeration (fills and react period). In this work, the analyses and tested with open loop identification the effect of fill and react period change on the performance of the SBR were studied. The process dynamic has been tested to determine the effect of Fill (tf) and React (tr)period changes on soluble substrate (Ss), soluble intermediate product (Ps), inert substrate (Si), particulate organics concentration (Xs), active biomass concentration (Xa), inert biomass concentration (Xi), the total biomass concentration (Xto) and the effluent chemical oxygen demand (COD) concentration in the SBR. In all simulations the total Fill and React time were set at 6 h, with the Fill time varied at 0.5 h, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, and the corresponding react time set at 5.5 h, 5 h, 4.5 h, 4 h, 3.5 h, and 3 h, respectively.Keywords: fill time and reaction time, sequencing batch reactor, wastewater treatment
Pemisahan Unsur Samarium dan Yttrium dari Mineral Tanah Jarang dengan Teknik Membran Cair Berpendukung (Supported Liquid Membrane) Amri Amin
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.725 KB)

Abstract

he increasing use of rare earth elements in high technology industries needs to be supported by developmental work for the separation of elements. The research objective is fiercely attracting and challenging considering the similarity of bath physical and chemical properties among these elements. The rate separation of samarium and yttrium elements using supported liquid membrane has been studied. Polytetrafluoroethylene (PTFE) with pore size of 0.45 µm has been used as the membrane and di(2-ethylhexyl) phosphate (D2EHP) in hexane has been used as a carrier and nitric acid solution has been used as receiving phase. Result of experiments showed that the best separation rate of samarium and yttrium elements could be obtained at feeding phase of pH 3.0, di(2-ethylhexyl) phosphate (D2EHP) concentration of 0.3 M, agitation rate of 700 rpm, agitation time of 2 hours, and nitric acid and its solution concentrations of 1.0 M and 0.1 M, respectively. At this condition, separation rates of samarium and yttrium were 64.4 and 67.6%, respectively.  Keywords: liquid membrane, rare earth elements, samarium, yttrium
The Effect of Filler Content on Mechanical Properties of Polypropylene/Clay Nanocomposites Teuku Rihayat; Pocut Nurul Alam
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (213.983 KB)

Abstract

This study investigated the effect of filler content on mechanical properties of polypropylene. There are synthesis clay and un-synthesis clay used as filler content. Different ratio of clay in polypropylene to study which ratio has a better mechanical property. The tensile test was carried out using INSTRON5565 and the maximum stress, strain, and modulus of elasticity observed. The experimental results showed that polypropylene/clay nanocomposite has a higher maximum stress compare to pure polypropylene and un-synthesis clay. Besides that modulus of elasticity of specimen calculated and finds that it increased with increment filler content and strain did not affect by filler. The synthesis clay filled into polypropylene will have a better mechanical property.  Keywords: nanocomposite, polypropylene, synthesis clay
Water Quality Assessment in the Tsunami Areas of Banda Aceh Suhendrayatna Suhendrayatna; Marwan Marwan; Edi Munawar; Muhammad Zaki
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.274 KB)

Abstract

Water quality assessment in the tsunami-affected areas conducted in Meuraxa and Kutaradja sub-districts in the area of Banda Aceh City. Water samples were collected in October 2006 from dug wells of tsunami-affected areas. These were characterized for various physical and chemical parameters. Water quality in the selected areas has shown that the surface water was contaminated due to the tsunami. Total Dissolved Solid, Total Suspended Solid, Acidity, and salinity were high in the affected areas indicating saline water intrusion into surface water tables. Dug wells in the highly affected locations showed higher values of heavy metal ions like Mn, Pb, Cu, Fe, Zn, and Cu compared to the reference points. No ion Hg was found in all samples. Keywords: Banda Aceh, heavy metals, tsunami, water quality
Preparasi Katalis Cu/Silika Gel dari Kristobalit Alam Sabang serta Uji Aktivitasnya pada Reaksi Dehidrogenasi Etanol Surya Lubis
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (186.503 KB)

Abstract

Cu/Silica gel catalyst preparation by using silica content which is obtained from Sabang natural crystobalit has been done. Isolated silica from crystobalit is reacted with natrium hidroxide to produce silicate natrium that reacted further with sulphate acid to produce silica gel. Silica gel is characterized by infra red spektroscopy dan BET test. BET test result showed that silica gel obtained has specific surface area 260,04 m2/gram and ion Cu  impregnation into silica gel pores produce Cu/silica gel catalyst with spesific surace area 158,53 m/gram ith Cu2+ metal content = 193 ppm. Catalyst activation test Cu/silica gel at dehidrogenation reaction of etanol to produce asetaldehide was done at temperature 100oC – 300oC. Reseach showed that the highest asetaldehide consentration (20,24%) is obtained at temperature 300oC.  Keywords: asetaldehide, crystobalit, Cu/silica gel, dehidrogenation, ethanol
Analisis Logam Berat Pb dan Cd dalam Sampel Ikan dan Kerang secara Spektrofotometri Serapan Atom Supriatno Supriatno; Lelifajri Lelifajri
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (128.953 KB)

Abstract

The analysis of heavy metals Pb and Cd concentrations in fish and oyster have been carried out by atomic absorption spectrophotometer (AAS) method. The wet digestion method was used for preparation sample prior to AAS detection. Sample was collected from three different location rivers at Lamnyong, Pantee Pirak and Lumbago. The result showed that the Pb and Cd concentration in fish and oyster at difference location were obtained not difference significantly. Pb and Cd contents in fish and oyster were found below lethal concentration. The AAS instrument was still valid to use as the instrument which is obtained of accuration of 0.65% and precise of 0,019 ppm still lower than threshold value of 1% and 0.04 ppm.Keywords: atomic absorbance spektrophootometry, fish, kerang, heavy metal
Production of Valuables Organic Acids from Organic Wastes with Hydrothermal Treatment Process Muhammad Faisal
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (185.362 KB)

Abstract

This article reports production of valuables organic acids from the hydrothermal treatment of representative organic wastes and compounds (i. e. domestic sludge, proteinaceous, cellulosic and plastic wastes) with or without oxidant (H2O2). Organic acids such as acetic, formic, propionic, succinic and lactic acids were obtained in significant amounts. At 623 K (16.5 MPa), acetic acid of about 26 mg/g-dry waste fish entrails was obtained. This increased to 42 mg/g dry waste fish entrails in the presence of H2O2. Experiments on glucose to represent cellulosic wastes were also carried out, getting acetic acid of about 29 mg/g-glucose. The study was extended to terephthalic acid and glyceraldehyde, reaction intermediates of hydrothermal treatment of PET plastic wastes and glucose, respectively. Studies on temperature dependence of formation of organic acids showed thermal stability of acetic acid, whereas, formic acid decomposed readily under hydrothermal conditions. In general, results demonstrated that the presence of oxidants favored formation of organic acids with acetic acid being the major product. Keywords: hydrothermal treatment, organic acids, organic wastes, oxidant, supercritical water oxidation

Page 1 of 1 | Total Record : 8

 1 

Filter by Year

2009 2009


Reset
Filter By Issues
All Issue Vol 18, No 1 (2023): Jurnal Rekayasa Kimia dan Lingkungan (January-June, 2023 ) Vol 17, No 2 (2022): Jurnal Rekayasa Kimia & Lingkungan (July - December, 2022) Vol 17, No 1 (2022): Jurnal Rekayasa Kimia dan Lingkungan (January-June, 2022) Vol 16, No 2 (2021): Jurnal Rekayasa Kimia & Lingkungan (December, 2021) Vol 16, No 1 (2021): Jurnal Rekayasa Kimia & Lingkungan (June, 2021) Vol 15, No 2 (2020): Jurnal Rekayasa Kimia & Lingkungan (December, 2020) Vol 15, No 1 (2020): Jurnal Rekayasa Kimia & Lingkungan (June, 2020) Vol 14, No 2 (2019): Jurnal Rekayasa Kimia & Lingkungan (December, 2019) Vol 14, No 1 (2019): Jurnal Rekayasa Kimia & Lingkungan (June, 2019) Vol 13, No 2 (2018): Jurnal Rekayasa Kimia & Lingkungan (December, 2018) Vol 13, No 1 (2018): Jurnal Rekayasa Kimia & Lingkungan (June, 2018) Vol 12, No 2 (2017): Jurnal Rekayasa Kimia & Lingkungan Vol 12, No 1 (2017): Jurnal Rekayasa Kimia & Lingkungan Vol 11, No 2 (2016): Jurnal Rekayasa Kimia & Lingkungan Vol 11, No 1 (2016): Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 4 (2015): Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 3 (2015): Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 2 (2014): Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 1 (2014): Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 4 (2013): Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 3 (2013): Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 2 (2012): Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 1 (2012): Jurnal Rekayasa Kimia & Lingkungan Vol 8, No 2 (2011): Jurnal Rekayasa Kimia & Lingkungan Vol 8, No 1 (2011): Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 4 (2010): Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 3 (2010): Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 2 (2009): Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan Vol 6, No 2 (2007): Jurnal Rekayasa Kimia & Lingkungan Vol 6, No 1 (2007): Jurnal Rekayasa Kimia & Lingkungan Vol 5, No 1 (2006): Jurnal Rekayasa Kimia & Lingkungan More Issue