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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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Pemanfaatan Tempurung Kelapa sebagai Katalis pada Proses Konversi Minyak Curah Menjadi Biodiesel Yustia Wulandari Mirzayanti; Erlinda Ningsih; Zain Lillahulhaq; Zuhdi Ma’sum; Chevy Renova; Yasin Wijaya
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.351

Abstract

Vegetable oil is one of the alternative sources of raw material for fuel oil to produce biodiesel. The conversion reaction process requires the help of a catalyst to break down triglycerides into methyl esters. Therefore, this study aims to determine the performance of catalysts made from coconut shells to convert bulk oil into biodiesel. The catalyst performance is focused on biodiesel's yield parameters through the influence factor of catalyst weight, molar ratio, and %FAME. This research was conducted in three stages, namely (1) catalyst preparation, (2) application of catalyst performance through the conversion process of bulk oil into biodiesel, (3) washing of biodiesel. The first stage was catalyst preparation carried out by utilizing a coconut shell, which was first made into charcoal, then activated using H3PO4 then sulfonated with H2SO4. The second stage was the conversion process of bulk oil into biodiesel using coconut shell catalysts through a transesterification process using variations in the catalyst's weight to bulk oil (0.5; 1; 1.5; 2; and 2.5% wt/wt) and bulk oil molar:methanol ratio (1: 3; 1: 6; and 1: 9). The third stage was the process of washing biodiesel using HCl. Based on this study's results, the best catalyst weight was 2% wt/wt with a molar ratio of 1: 9 resulting in the highest yield of 89% and the FAME of 80.36%.
Penentuan Kadar Selulosa Asetat pada Daun Tanaman Puring (Codiaeum variegatum) sebagai Penyerap Timbal di Udara Ayu Pramita; Eka Dyah Puspitasari; Rostika Listyaningrum
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.352

Abstract

Pollution is one of the environmental problems in developing countries. Sources of pollution can be caused by nature and due to human actions. One of the air pollution sources is heavy metal content of Pb which is not easily decomposed in nature so that it can contaminate the environment. In Puring plants, especially the leaves have cellulose acetate which can filter heavy metals. The purpose of this study was the manufacturing of cellulose acetate from the leaves of the Puring plant. The cellulose obtained from the simplicia of leaves of the Puring plant will then be reacted into cellulose acetate through the acetylation reaction process using acetic anhydride with variations in temperature and reaction time taken, namely 40, 50, 60° C and as long as 50, 55, and 60 minutes. The levels of cellulose acetate were obtained through the cellulose extraction process, the synthesis of cellulose acetate and the final stage of making the membrane, from this process the optimum temperature and reaction time results were obtained in the second experiment with a temperature and reaction time of 50°C each and for 55 minutes without applying a catalyst 12.40%. In addition, the weight variation of raw material powder was taken, namely 20, 40, 60, 80, and 120 mg using a certain concentration of Pb (II) solution to determine the adsorbent capacity. These results can be obtained from analysis using Fourier Transform Infrared (FTIR).
Pengaruh Variasi Konsentrasi NaOH sebagai Nutrisi pada Performansi Biogas Tipe Portabel Syamsuri; Yustia Wulandari Mirzayanti; Wiwik Widyo Widjajanti; Samuel Kristian Bani
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.353

Abstract

Biogas is a gas fuel produced by anaerobic activity or fermentation of organic materials, including human and animal waste, domestic (household) waste, or anaerobic degradation of organic materials by anaerobic bacteria. In this study, biogas was used as fuel with the addition of NaOH variations to the modified gasoline generator set engine so that it could work to produce electricity. This experiment used variations of 2, 4, 6, 8, and 10% NaOH nutrition with variations in the electric load of 10, 15, 20, 25, 30, 35, 40, 45, and 50 watts. These purposed to determine the performance of electric power, torque, and system efficiency. From the test, it found that the greater load of the lamp, the smaller performance of the electric power produced. The results showed that the greatest electric power was the variation of 2% NaOH nutrition with a lamp load of 10 watts, namely 39.33 watts. In the efficiency testing, the greater electric load system resulted efficiency system tent to be stable. The best system efficiency with 2% NaOH nutrition was compared to other nutritional variations. In testing of torque, the greater electric load torque resulted also greater torque. The greatest torque with 2%, NaOH nutrition compared to other nutritional variations.
Designing a Tourism Minibus Driver Chair by Using IDEAS Framework in a Virtual Environment Lintangsari, Putri Suci; Yuliawati, Evi; Suroso, Hastawati Chrisna
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.354

Abstract

Indonesia is a high tourism sector country which provides opportunities for tour and travel service business. Thereby increasing the growth rate of accidents by 3.3%, one of which was caused by buses. Hafizh 58 Jaya, a company in the field of tourism services, had many complaints against drivers about the problem of muscle disorders due to the lack of ergonomic position of the driver or the seat used which was not suitable with the user or not ergonomic. To analyse this problem, IDEAS framework was applied. This method could describe overall minibus driver movement and produce designs that were appropriate with the level of risk on small musculoskeletal disorders. By normal driving activity, the second driver had the largest PEI parameter index value, 2,186. It was categorized as medium to low-risk musculoskeletal disorders. This meant that the actual chair with normal driving activity was not optimal and not ergonomic. The final design of the redesign chair has given optimal and ergonomic results shown by highest PEI index parameter value of 1,336. This PEI index parameter was categorized at the low risk of musculoskeletal disorders.  
Phythotechnology of Touch Industrial Waste Treatment in Sidoarjo using Typha Latifolia Plant to Reduce TDS and Ammonia Levels Oktavia, Lily; Taufiq, Mohammad; Tamyiz, Muchammad
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.v7i1.355

Abstract

Sidoarjo Regency is a buffer zone for industrial estates in Surabaya, East Java Province. Therefore, the economic growth of the Sidoarjo Regency is increasing along with the development of trade and industrial potential. One of the industries that have grown well in Sidoarjo Regency is the tofu factory. Many tofu craftsmen industry causes an increase in the volume of liquid waste which also flows into water bodies. The purpose of this study was to determine the reduction of TDS and ammonia levels in the tofu factory wastewater treatment in the Sepande area, Sidoarjo Regency, by using a wetland construction with a Typha latifolia remediator. The research stages will be carried out using a laboratory scale using acclimatization as the adaptation stage of Typha latifolia and a constructed wetland reactor as a phytoremediation process. Based on the results and discussion, it can be concluded that there was a decrease in TDS and ammonia levels in the tofu industrial wastewater in Sidoarjo with the Constructed Wetland system. The largest decline in TDS content was in soil media with three Typha latifolia stems and a detention time of four days by 76%. Meanwhile, the most considerable percentage reduction in ammonia levels occurred in sand media with three stems of Typha latifolia and a detention time of four days by 70%.  
Mitigasi Risiko Limbah Plastik pada Reverse Logistik Network Agnestia, Treza; Evi Yuliawati
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.v7i1.365

Abstract

Plastic waste actually will still have a high sale value if it is utilized well or recycled to be products with better values. Unfortunately, the recycle process of plastic waste has some obstacles such as the lack of people’s understanding on the waste. Therefore, identification is indispensable to conduct on the risk that potentially disrupt the Reverse Logistic Network (RLN). This research was carried out through House of Risk (HOR) method consisting of 2 phases. HOR phases 1 was the phase for identifying the risks and their agents. Next, the researcher measured the levels of severity and occurrence as well as calculated the value of Aggregate Risk Priority (ARP). All of those stages ware used to investigate the selected risk agents and design mitigation action on HOR phase 2. The results of research and calculation obtained 29 risk event, 52 risk agent, and 3 selected risk agents for mitigation action.  
Pengukuran dan Penentuan Prioritas Perbaikan Kualitas Layanan Jasa Service Kendaraan dengan Metode Service Quality dan Analytical Hierarchy Process Krisnadhi Hariyanto; Astria Hindratmo
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.366

Abstract

The service business in Indonesia is growing every year and competition is getting tougher. One of the service businesses that is always growing is motor vehicle repair service. So that the vehicle service company must make service improvements to be able to compete. For this reason, the company needs to know the service performance so that the company must know the advantages and disadvantages of the services provided to customers. The purpose of this study is to measure the performance of vehicle service quality and determine service improvement priorities in increasing customer satisfaction and loyalty. The method used in this research is service quality and Analytical Hierarchy Process (AHP). The results of the study were to obtain 21 service attributes obtained from interviews. Then from the results of processing with the service quality method, it turns out that there is a gap in service quality based on perceptions and expectations because it is negative. So all the existing service attributes need to be improved. Meanwhile, the results of determining priorities that need to be improved on the 21 service attributes using the AHP method show that the mechanical speed attribute in car service is the first priority because it has the largest weight, namely 0.107. Then the service attribute that gets the last priority to be repaired is the equipment and equipment attribute with the smallest weight of 0.02 because the current dealer already has a fairly complete vehicle service tool.
Analisis Pengaruh Human Capital dan Structural Capital terhadap Kinerja Perusahaan Kafidin Muzakki
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.369

Abstract

The research wants to test and analyse using a quantitative approach whether the existence of human capital and structural capital has an influence on company performance as measured by Economic Value Added (EVA). The population of this study is the financial statements of pharmaceutical manufacturing companies listed on the Indonesia Stock Exchange (BEI) from 2013 to 2018, with a sample size of 6 companies, the number of observations was 36 samples. The results of this study indicate that the management of human capital and structural capital has a positive but insignificant effect on company performance as measured by Economic Value Added (EVA) assessments, so that theoretically it does not support Barney and Clark's Resource Based Theory (RBT) theory, because there are still components of human capital and structural capital which quantitatively have a positive but insignificant effect. RBT theory states that companies have three types of resources, namely human resources (HR), organizational/structural resources, and physical resources that contribute to obtaining profitability. The three types of resources are an integral part that cannot be separated because they influence one another.
Perancangan Strategi Sustainable Development Berbasis Co-Opetition antara Sektor UMKM Produk Hasil Laut dan Wisata Pantai Kenjeran Surabaya Guna Menciptakan Potensi Ecology Industrial Parks (EIP) Astria Hindratmo; Nurwahyudi Widhiyanta
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.371

Abstract

The Kenjeran area in Surabaya is a potential area that become a leading area because of coastal tourism and marine products processing MSMEs, so it is necessary to collaborate between MSMEs and tourism to achieve a continuous development. In addition, there is a need for the preservation of marine conditions around Kenjeran beach because of fish as the main raw material for MSMEs. There were three components to achieve sustainable development including MSMEs, coastal tourism, and the environment. They were expected to form an Ecology Industrial Parks (EIP) area for MSMEs by cooperating these three components. The purpose of this research was to design a sustainable development strategy based on co-opetition between MSMEs and coastal tourism to develop the area into EIP that considered the environmental sustainability. The methods used were IFE and EFE, SWOT, IE matrix and QSPM strategy selection. The results of this study were IFE produced a weighted score of 3.154 and EFE produced a weighted score of 3.118. SWOT analysis by using the TOWS matrix resulted a total of 44 strategies with 16 SO, 12 WO, 8 ST, and 8 WT strategies. The IE matrix results were in the position of cell I, resulting in 4 strategic categories namely forward and backward integration, market penetration, market development, product development. The QSPM results obtained the largest TAS, namely 7,133 in product development strategies.
Pengendalian Kualitas dengan Pendekatan Six Sigma dan New Seventools sebagai Upaya Perbaikan Produk Suhartini; Mochammad Basjir; Arief Tri Hariyono
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.373

Abstract

X is a manufacturing company engaged in galvalume processing. Hollow Galvalume is a leading product of CV. X. In each production process, there was product failure or defective products. If defective products occurred frequently, it could harm the company. Therefore, the objectives of study were to identify and analyse the causes of product defects and provide recommendations for improvements to minimize defective products. The methods used were Six Sigma and New Seventools. The Six Sigma method has 5 stages, namely Define, Measure, Analyse, Improve, and Control. The results of the calculation showed value of Defect per Million Opportunity was 14721 and sigma value of 3.69. Thus, the production of hollow products reached the Indonesian average industrial level, but the company wants to make improvements continuously. The results of improvement stage using New Seventools provided recommendations for improvements, among others, training for workers to understand work procedures better, regular schedule of machine maintenance, material inspection process monitoring, making a list of materials planned to be used, addition of special area and facilities for material warehouse.

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