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INDONESIA
Journal of Research and Technology
Published by Universitas NU Sidoarjo
ISSN : 24605972     EISSN : 24776165     DOI : -
Core Subject : Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Industrial & Manufacturing Engineering
Journal of Research and Technology published since 2015 contains a collection of a selected articles from the results of research and study of literature which is relevant to industrial , chemical, and environment engineering. Target readers of the Journal of Research and Technology are scientists, academics, and practitioners from various fields of industry.
Arjuna Subject : -
Articles 454 Documents
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Simulasi Steady State dan Dynamic pada Kolom De-isobutanizer dengan Penambahan Invers Decoupling pada Sistem Closedloop Zahrotul Azizah
Journal of Research and Technology Vol. 7 No. 1 (2021): JRT Volume 7 No 1 Jun 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i1.376

Abstract

Degenerative Control in the Multi Input Multi Output (MIMO) system is an important topic of process control in industry. The interaction between variables in the process becomes a challenge in designing controllers for MIMO systems. Unwanted interactions cause reduced system performance which results in waste. The addition of inverse decoupling is a new strategy in reducing interactions in the process. The proposed strategy was tested on a de-isobutanizer distillation column. The results obtained were that the IAE value in the inverse decoupling added to the 2DoF IMC structure using the Mp-GM tuning method was smaller than the 2DoF IMC structure without inverse decoupling. This structure could reduce the interaction between variables in the MIMO 2×2 process.
ANALISIS PENGARUH MEKANISME KORDINASI TERHADAP SCHEDULE INSTABILITY DAN TOTAL BIAYA PADA LEVEL MPS DI ENTITAS RANTAI PASOK SEDERHANA DENGAN MEMPERTIMBANGKAN LEAD TIME Elsa Rosyidah; Mochammad Aldy Anwar
Journal of Research and Technology Vol. 5 No. 1 (2019): JRT Volume 5 No 1 Jun 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i1.379

Abstract

Instability in production planning (or better known as schedule instability) is unavoidable. This makes the company companies make various efforts to minimize the level of instability. There are several strategies that are generally used to minimize instability schedules, including freezing, safety stock / buffer. In this study, we will try to use a coordination approach to minimize the consequences of instability schedules in a simple supply chain. The simple supply chain system is the focus of this study consisting of one entrepreneur and one supplier integrated through a coordination mechanism (sharing information relating to order orders). This research will be conducted to study a full factorial experiment (full factorial experiment). A variety of different operational conditions are also considered such as: the uncertainty of financing, the cost structure, and the inventory policy applied by the company to be the part observed in this study. The results of this study, namely through the existence of a coordination mechanism, can reduce the level of schedule instability in each entity both manufacturing and supplier. In addition, through coordination it is also able to eliminate the transfer of risks that manufacturers often make to suppliers in the production planning section, as well as being able to reduce total costs to manufacturing or supplier entities. Through this research, it is expected to provide an understanding in the manufacturing industry of the importance of coordination in the supply chain system.
Pengolahan Limbah Cair Industri Elektroplating dengan Proses Flotasi Menggunakan Methyl Ester Sulfonate (MES) sebagai Collector Laurentius Urip Widodo; Sholekhah, Bika Amalia; Hubbi Hikmatu Ilma
Journal of Research and Technology Vol. 7 No. 2 (2021): JRT Volume 7 No 2 Des 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i2.380

Abstract

Industrial waste is a major problem for countries that are developing large industries such as Indonesia. Industrial waste with heavy metal content such as electroplating waste cannot be disposed of directly into the water because it can cause environmental pollution. Therefore, further processing is needed to reduce or eliminate metal levels in the waste water. In this study, the method used to reduce Cu metal content in electroplating waste is using the flotation method. Flotation is the process of separating minerals or ions through flotation with the help of air bubbles to the surface of the water. The parameters observed in this study were the effect of pH and collector on % Cu removal. Experiments were carried out with waste water feed containing Cu metal with an initial concentration of 107.6 mg/L, with a variation of pH 4,5,6,7,8 and a variation of the concentration of 200 mg/L, 300 mg/L, 400 mg/L, 500 mg/L and 600 mg/L of collector. After being analysed using Atomic Absorption Spectrophotometer (AAS), the best% Cu removal at pH 6 conditions and 300 mg/L methyl ester sulfonate (MES) concentration was 67.19%.
REMOVAL IMPURITIS GARAM DENGAN METODE PERTUKARAN ION SECARA BATCH Pujiastuti, Caecilia; Yustina Ngatila
Journal of Research and Technology Vol. 5 No. 1 (2019): JRT Volume 5 No 1 Jun 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i1.389

Abstract

Salt is one of the consumer and industrial consumption products that has the maincontent of sodium chloride (NaCl). The present quality of the salt product currentlycontains about 90-93% sodium chloride, and the other is known as an impurities ofcalcium (Ca), magnesium (Mg), potassium (K) and sulfate (SO4) ions. The presence ofthese impurities will decrease the quality of the salt product, so a method is needed todecrease the content of impurities in the salt product. One of the methods that can beused to reduce the levels of impurities such as Ca, Mg, K, and sulfate (SO4) ions in saltsolution is ion exchange method. In this study we studied the effect of cation resinamount (50-150) grams per liter of salt solution and anion solution (150 grams) andcontact time (5-25) minutes on removal of Ca, Mg, K and SO4 ions. The study wasconducted in a stirred tank with a fixed rotation speed of 200 rpm, and the initial qualityof the salt solution contained Ca ions: 0.07%, Mg: 0.09%, K: 0.04% and SO4: 0.4%.Based on the result of the research, the removal of Ca ion: 93.6%, Mg: 78.93%, K:25.00% dan SO4: 85.47 % at condition of cation resin amount: 150 gram/liter andcontact time 25 minutes.
Ceramic Industry Wastewater Treatment by Chemical Coagulation Process Pujiastuti, Caecilia; Egita Yulisningtyas; Ira Pareira
Journal of Research and Technology Vol. 7 No. 2 (2021): JRT Volume 7 No 2 Des 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i2.411

Abstract

Ceramic industrial waste contains organic compounds and several heavy metals that exceed the quality standards of ceramic industrial wastewater, therefore the wastewater is treated using the coagulation method. This study uses a coagulant Poly Aluminium Chloride (PAC) with the aim to determine the effect of coagulant mass and stirring time on reducing the content of COD, TSS, lead metal (Pb), and colour. Starting with the waste mixed with PAC has been diluted with a concentration of 1%. Then stirred using a flocculator with a speed of 100 rpm and time (2, 4, 6, 8, and 10 minutes) to form floc. Then it is deposited and separated between the filtrate and the solids. Then the filtrate was analysed. With this analysis, it can be seen that the highest reduction efficiency of TSS levels was 99.9% with a coagulant volume of 12.5 ml at 6 minutes. The highest efficiency of COD levels was obtained at 98.23% with a coagulant volume of 15 ml at 6 minutes. The highest efficiency of waste colour reduction was 99.85% with a coagulant volume of 15 ml at 10 minutes and the efficiency of reducing Pb levels was 99.10% with a coagulant volume of 5ml at 2 minutes, all of which were below the quality standard ceramic industry.  
Produksi Bahan Bakar Minyak (BBM) dari Sampah Botol Plastik Bekas Air Minum dengan Metode Pirolisis Dhaniswara, Trisna Kumala; Dian Fahriani
Journal of Research and Technology Vol. 7 No. 1 (2021): JRT Volume 7 No 1 Jun 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i1.413

Abstract

Garbage is the biggest contributor to environmental damage, especially plastic waste that is not processed properly. One of the problems in the community is the management of plastic waste, which until now has not been controlled. It is estimated that each person consumes 170 plastic bags each year and that around 500 billion to one trillion plastic bags are used worldwide. As well as more than 17 billion plastic bags distributed free of charge by supermarkets around the world for each year. In fact, if all the plastic bags on earth were opened, they could cover the entire surface of the earth up to 11 times. Plastic is a material that is very familiar in human life and has been considered a staple for household or domestic needs so that the presence of plastic waste is increasing. The purpose of this research is to convert plastic waste bottles used for drinking water into fuel oil using the pyrolysis method. The reactor used is pyrolysis with a temperature of 200 °C, 250 °C, 300 °C, 350 °C, and 400 °C for 30, 60, and 90 minutes. After the fuel is obtained, it is taken for analysis of its heating value, flash point, ash content, moisture content, and composition analysis. The results of this research will help the processing of plastic waste in addition to used plastic bottles.
Pengolahan Limbah Cair Bekas Pencucian Ikan Menggunakan Scirpus grossus Atik Widiyanti; Laily Noer Hamidah
Journal of Research and Technology Vol. 7 No. 1 (2021): JRT Volume 7 No 1 Jun 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i1.424

Abstract

Sidoarjo is one of the largest fish-producing districts in East Java. The high productivity of fisheries is in line with the increasing amount of waste produced. Both solid waste and liquid waste. Generally, liquid waste comes from water used for washing fish, usually brownish, cloudy and smells fishy. In addition, the concentration of organic matter is very high in the waste. The purpose of this study was to determine the reduction in levels of Total Suspended Solid (TSS), Total Dissolved Solid (TDS) and Biocamical Oxigen Demand (BOD) in these wastes using Scirpus grossus. The independent variable used is the variation in the number of plants (without plants, 5 plants and 10 plants). The waste used comes from the Fish Market Depot Kab. Sidoarjo. The research begins with the acclimatization process, then the phytoremediation test is carried out. Based on laboratory analysis, it was found that the best decrease in TSS, TDS and BOD was obtained from the reactor with 10 plants.
Pengaruh Konsentrasi NaOH, Urea, dan Rumen terhadap Performa Generator Berbahan Bakar Biogas Syamsuri; Yustia Wulandari Mirzayanti; Sigit Setiawan
Journal of Research and Technology Vol. 7 No. 1 (2021): JRT Volume 7 No 1 Jun 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i1.430

Abstract

Biogas is a gas produced from anaerobic activity or the fermentation of organic materials, including human waste, animal waste, and waste. Biogas from cow dung can be used as an alternative fuel. In this study, biogas is used as fuel with the addition of variations of NaOH, urea, and rumen to the modified gasoline generator set engine so that it can work to generate electricity. This research was conducted by experimenting with varying nutrients, namely NaOH, urea, and rumen. Besides that, variations in the electrical load are carrying out for 15, 20, 25, 30, 35, 40, and 45. This is intended to determine the performance of the electrical energy produced. From the test, it was found that the voltage and engine speed of the generator set tended to decrease for the addition of variations in the electric load. Meanwhile, current, power, torque, average adequate pressure, and total efficiency increase for all additional electric load variations. The results showed that the most incredible efficiency was using 43.57% NaOH nutrition. For the variation of Urea nutrition in biogas, obtained total efficiency of 42.16%. Meanwhile, rumen nutrition variation has the most negligible efficiency than other nutritional variations, 39.55%.
Optimization of Esterification and Transesterification Processes for Biodiesel Production from Used Cooking Oil M. Hasan Abdullah; Wahyu Riyanto, Ong Andre; IBSW, Dyah Puspita
Journal of Research and Technology Vol. 7 No. 2 (2021): JRT Volume 7 No 2 Des 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i2.432

Abstract

Various treatments were carried out to produce biodiesel optimally. This research was conducted to process used cooking oil (UCO) into biodiesel. UCO with high FFA has saponification in the transesterification reaction. Transesterification experiment UCO with % FFA 4.261 and acid number 8.42 mg-KOH/g produced saponification. This experiment was carried out at different temperatures, speeds, and times. It is necessary to carry out initial esterification treatment. Simultaneously the biodiesel synthesis process is carried out by esterification and transesterification processes. The esterification process with 3%wt H2SO4 catalyst, 1:6 molar ratio of oil and alcohol with temperature treatment of 50 °C, speed of 300 rpm for 60 minutes can reduce % FFA in UCO to 2.115 and acid number 4.208 mg-KOH/g. The transesterification process using a NaOH catalyst of 0.5% wt, the molar ratio of oil and alcohol 1:6 with a temperature treatment of 60°C, a speed of 400 rpm for 60 minutes, can produce biodiesel with an acid number of 0.28 mg-KOH/g and 0.141 of % FFA according to SNI 7182-2015 standard. These results after purification on biodiesel.  
METODE PENGERINGAN AMPAS TEBU (BAGASSE) DENGAN PEMANFAATAN KEMBALI PANAS GAS BUANG BOILER DI PG. PRADJEKAN BONDOWOSO Solikin; M. Arif Batutah
Journal of Research and Technology Vol. 5 No. 1 (2019): JRT Volume 5 No 1 Jun 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i1.441

Abstract

At present the need for fossil fuels is very high, while reserves in nature are decreasing. For this reason, innovation is needed to find alternative energy from fossil fuels to alternative energy that is more environmentally friendly and can be renewed. The sugar factory as one of the Dutch heritage industries that produces solid waste in the form of bagasse can be used for boiler fuel. While the boiler exhaust gas (flue gas) from the chimney generated from burning fuel also causes air pollution can be used for drying bagasse so as to reduce the impact of pollution caused by the exhaust gas. The use of bagasse with a moisture content of around 49-52% as boiler fuel as one of the causes of burning in the combustion chamber is not perfect and causes air pollution. The high temperature of the smoke gas coming out through the boiler chimney around 220 C has a heat content of 13475.72 kW and still high levels of water in the pulp can certainly be used to dry bagasse using a dryer (Rotary Dryer) Through the use of flue gas that is wasted on the boiler chimney for bagasse drying, it can increase the heat value of bagasse 50,544 x 106 Kcal / hour for the production of bagasse 30 tons / hour, reduce bagasse water content up to 35,1%, increase thermal efficiency and reduce pollutants released into the surrounding environment.

Page 36 of 46 | Total Record : 454

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